Dechert, Sebastian

[["dc.bibliographiccitation.firstpage","M691"],["dc.bibliographiccitation.journal","ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE"],["dc.bibliographiccitation.lastpage","U863"],["dc.bibliographiccitation.volume","65"],["dc.contributor.author","Davydenko, Yuliya M."],["dc.contributor.author","Fritsky, Igor O."],["dc.contributor.author","Pavlenko, Vadim O."],["dc.contributor.author","Meyer, Franc"],["dc.contributor.author","Dechert, Sebastian"],["dc.date.accessioned","2018-11-07T08:28:50Z"],["dc.date.available","2018-11-07T08:28:50Z"],["dc.date.issued","2009"],["dc.description.abstract","In the title compound, [Cu(C2H3O2)(2)(C5H8N2)(2)], the Cu-II atom has a distorted tetragonal-bipyramidal geometry, with the equatorial plane formed by two N atoms belonging to two 3,5-dimethyl-1H-pyrazole ligands and two O atoms from two acetate anions. The second O atoms of the acetate groups provide elongated Cu-O axial contacts, so that the acetates appear to be coordinated in a pseudo-chelate fashion. The pyrazole ligands are situated in cis positions with respect to each other. In the crystal structure, molecules are linked through intermolecular N-H center dot center dot center dot O hydrogen bonds, forming a one-dimensional chain."],["dc.description.sponsorship","Ministry of Education and Science of Ukraine [M/42-2008]"],["dc.identifier.doi","10.1107/S1600536809019400"],["dc.identifier.isi","000266514400073"],["dc.identifier.pmid","21583048"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5942"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16512"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1600-5368"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Bis(acetato-kappa O-2,O ')bis(3,5-dimethyl-1H-pyrazole-kappa N-2)copper(II)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3708"],["dc.bibliographiccitation.issue","14"],["dc.bibliographiccitation.journal","Organometallics"],["dc.bibliographiccitation.lastpage","3725"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Stollenz, Michael"],["dc.contributor.author","Gehring, Henrike"],["dc.contributor.author","Konstanzer, Vera"],["dc.contributor.author","Fischer, Stefan"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Grosse, Christian"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T08:54:12Z"],["dc.date.available","2018-11-07T08:54:12Z"],["dc.date.issued","2011"],["dc.description.abstract","The synthesis of a series of new pyrazole-based binucleating compartmental ligands, 3,5-bis((RRN)-R-2-N-3)-(4-R-1)-pyrazoles (LH)-H-1-(LH)-H-6 ((LH)-H-1, R-1 = H, R-2 = Me, R-3 = 2-py(CH2); (LH)-H-2, R-1 = Ph, R-2 = Me, R-3 = 2-py(CH2); (LH)-H-3, R-1 = H, R-2 = Cy, R-3 = 2-py(CH2); (LH)-H-4, R-1 = Ph, R-2 = Cy, R-3 = 2-py(CH2); (LH)-H-5, R-1 = Ph, R-2, R-3 = 2-py(CH2), L6H, R-1 = Ph, R-2 = Me, R-3 = 8-quin), together with the X-ray crystal structure of (LH)-H-3 is reported. After deprotonation and subsequent reaction with 2 equiv of [Cu-I(CH3CN)(4)](BF4) and PMe3, (LH)-H-3 forms the stable binuclear Cu-I complex [L-3{Cu(PMe3)}(2)](BF4) (1). The analogous reaction with (LH)-H-6 and 2 equiv of tert-butyl isonitrile affords [L-6{Cu(CNtBu)}(2)](BF4) (2), 1 and 2 represent the first examples of binuclear Cu-I-pyrazolate complexes of the type [LCu21]X that have been characterized by their X-ray crystal structures. With respect to the planes spanned by the pyrazolate backbone, 1 shows a cis orientation of the PMe3 ligands, whereas 2 exhibits a trans arrangement of the tBuNC ligands. (LH)-H-1-(LH)-H-6 are shown to react with 4 equiv of mesitylcopper and stoichiometric amounts of dioxygen, leading to the formation of the unusually stable organocopper frameworks 3-8. These complexes follow a general structural principle that is best described by the heteroleptic O-centered cuprate anion [(MesCu(I))(4) (mu(4)-O)](2-) linked via four trans-oriented sigma-mesityl bridges to two flanking binuclear Cu-I-pyrazolates [(L-1-L-6)Cu-2(I)](+). Thus, 1 and 2 can also be viewed as capping binuclear Cu-I-complex units that are concealed by two ancillary PMe3 and tBuNC ligands, respectively. The exemplary reaction of 4 with an excess of dimethyl acetylenedicarboxylate (DMDAC) supports the observed cuprate features of 3-8, since after hydrolysis the corresponding (syn-)addition product MesC(CO2Me)=C(CO2Me)H (9) and the free ligand (LH)-H-2 are found as major products."],["dc.description.sponsorship","Fonds der Chemischen Industrie"],["dc.identifier.doi","10.1021/om100836j"],["dc.identifier.isi","000292847900006"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8936"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22617"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0276-7333"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","From Pyrazolate-Based Binuclear Copper(I) Complexes to Octanuclear sigma-Mesityl-Bridged mu(4)-Oxo-Cuprocuprates: Controlled Dioxygen Splitting by Organocopper Scaffolds"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5230"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Chemical Science"],["dc.bibliographiccitation.lastpage","5234"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Chandra Mondal, Kartik"],["dc.contributor.author","Roy, Sudipta"],["dc.contributor.author","Dittrich, Birger"],["dc.contributor.author","Maity, Bholanath"],["dc.contributor.author","Dutta, Sayan"],["dc.contributor.author","Koley, Debasis"],["dc.contributor.author","Vasa, Suresh Kumar"],["dc.contributor.author","Linser, Rasmus"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Roesky, Herbert W."],["dc.date.accessioned","2015-07-17T07:46:46Z"],["dc.date.accessioned","2021-10-27T13:12:19Z"],["dc.date.available","2015-07-17T07:46:46Z"],["dc.date.available","2021-10-27T13:12:19Z"],["dc.date.issued","2015"],["dc.description.abstract","Silicondiselenide is a semiconductor and exists as an insoluble polymer (SiSe2)n which is prepared by reacting elemental silicon with selenium powder in the temperature range of 400–850 °C. Herein, we report on the synthesis, isolation, and characterization of carbene stabilized molecular silicondiselenide in the form of (cAAC)2Si2Se4 (3) [cAAC = cyclic alkyl(amino)carbene]. 3 is synthesized via reaction of diatomic silicon(0) compound (cAAC)2Si2 (2) with black selenium powder at −78 °C to room temperature. The intensely orange colored compound 3 is soluble in polar organic solvents and stable at room temperature for a month under an inert atmosphere. 3 decomposes above 245 °C. The molecular structure of 3 has been confirmed by X-ray single crystal diffraction. It is also characterized by UV-vis, IR, Raman spectroscopy and mass spectrometry. The stability, bonding, and electron density distributions of 3 have been studied by theoretical calculations."],["dc.identifier.doi","10.1039/C5SC01516B"],["dc.identifier.isi","000359214100017"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11973"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91681"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","2041-6539"],["dc.relation.issn","2041-6520"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","silicondiselenide; semiconducting; soluble molecular variant"],["dc.title","A soluble molecular variant of the semiconducting silicondiselenide"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","10428"],["dc.bibliographiccitation.issue","37"],["dc.bibliographiccitation.journal","Chemical Communications"],["dc.bibliographiccitation.lastpage","10430"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Burger, Boris"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Grosse, Christian"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2018-11-07T09:00:57Z"],["dc.date.available","2018-11-07T09:00:57Z"],["dc.date.issued","2011"],["dc.description.abstract","A novel pyrazolate-based diiron(II) complex shows five different binding modes of exogenous carboxylate ligands in a single crystal structure. Temperature dependent X-ray data reveal thermally induced disorder due to carboxylate dynamics that resemble the carboxylate shift, as it is known from various diiron enzyme active sites."],["dc.description.sponsorship","DFG [IRTG 1422]; Evonik Foundation"],["dc.identifier.doi","10.1039/c1cc13756e"],["dc.identifier.isi","000294500600072"],["dc.identifier.pmid","21842055"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8677"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24289"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1364-548X"],["dc.relation.issn","1359-7345"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Visualising the carboxylate shift at a bioinspired diiron(II) site in the solid state"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","S1090780721001804"],["dc.bibliographiccitation.firstpage","107091"],["dc.bibliographiccitation.journal","Journal of Magnetic Resonance"],["dc.bibliographiccitation.volume","333"],["dc.contributor.author","Kehl, Annemarie"],["dc.contributor.author","Hiller, Markus"],["dc.contributor.author","Hecker, Fabian"],["dc.contributor.author","Tkach, Igor"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Bennati, Marina"],["dc.contributor.author","Meyer, Andreas"],["dc.date.accessioned","2021-12-01T09:24:13Z"],["dc.date.available","2021-12-01T09:24:13Z"],["dc.date.issued","2021"],["dc.description.abstract","Pulsed 19F ENDOR spectroscopy provides a selective method for measuring angstrom to nanometer distances in structural biology. Here, the performance of 19F ENDOR at fields of 3.4 T and 9.4 T is compared using model compounds containing one to three 19F atoms. CF3 groups are included in two compounds, for which the possible occurrence of uniaxial rotation might affect the distance distribution. At 9.4 T, pronounced asymmetric features are observed in many of the presented 19F ENDOR spectra. Data analysis by spectral simulations shows that these features arise from the chemical shift anisotropy (CSA) of the 19F nuclei. This asymmetry is also observed at 3.4 T, albeit to a much smaller extent, confirming the physical origin of the effect. The CSA parameters are well consistent with DFT predicted values and can be extracted from simulation of the experimental data in favourable cases, thereby providing additional information about the geometrical and electronic structure of the spin system. The feasibility of resolving the CSA at 9.4 T provides important information for the interpretation of line broadening in ENDOR spectra also at lower fields, which is relevant for developing methods to extract distance distributions from 19F ENDOR spectra."],["dc.identifier.doi","10.1016/j.jmr.2021.107091"],["dc.identifier.pii","S1090780721001804"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94884"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-478"],["dc.relation","SFB 1456: Mathematik des Experiments: Die Herausforderung indirekter Messungen in den Naturwissenschaften"],["dc.relation","SFB 1456 | Cluster A | A01: Geometric and Bayesian statistics to reconstruct protein radical structures from ENDOR spectroscopy"],["dc.relation.issn","1090-7807"],["dc.rights","CC BY-NC-ND 4.0"],["dc.title","Resolution of chemical shift anisotropy in 19F ENDOR spectroscopy at 263 GHz/9.4 T"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3218"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Angewandte Chemie. International Edition"],["dc.bibliographiccitation.lastpage","3225"],["dc.bibliographiccitation.volume","59"],["dc.contributor.author","Liu, Peiwen"],["dc.contributor.author","Pang, Bo"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Zhang, Xizhou Cecily"],["dc.contributor.author","Andreas, Loren B"],["dc.contributor.author","Fischer, Steffen"],["dc.contributor.author","Meyer, Franc"],["dc.contributor.author","Zhang, Kai"],["dc.date.accessioned","2020-05-18T08:15:07Z"],["dc.date.available","2020-05-18T08:15:07Z"],["dc.date.issued","2020"],["dc.description.abstract","Reported here for the first time is the alkaline periodate oxidation of lignocelluloses for the selective isolation of cellulose nanocrystals (CNCs). With the high concentrations as a potassium salt at pH 10, periodate ions predominantly exist as dimeric orthoperiodate ions (H2 I2 O104- ). With reduced oxidizing activity in alkaline solutions, dimeric orthoperiodate ions preferentially oxidized non-ordered cellulose regions. The alkaline surroundings promoted the degradation of these oxidized cellulose chains by β-alkoxy fragmentation and generated CNCs. The obtained CNCs were uniform in size and generally contained carboxy groups. Furthermore, the reaction solution could be reused after regeneration of the periodate with ozone gas. This method allows direct production of CNCs from diverse sources, in particular lignocellulosic raw materials including sawdust (European beech and Scots pine), flax, and kenaf, in addition to microcrystalline cellulose and pulp."],["dc.identifier.doi","10.1002/anie.201912053"],["dc.identifier.pmid","31692150"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17023"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65463"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.eissn","1521-3773"],["dc.rights","CC BY-NC 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc/4.0"],["dc.title","Structure Selectivity of Alkaline Periodate Oxidation on Lignocellulose for Facile Isolation of Cellulose Nanocrystals"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4137"],["dc.bibliographiccitation.issue","43"],["dc.bibliographiccitation.journal","European Journal of Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","4145"],["dc.bibliographiccitation.volume","2020"],["dc.contributor.author","Wong, Joanne W. L."],["dc.contributor.author","Hua, Shao‐An"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Ye, Shengfa"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2021-04-14T08:32:19Z"],["dc.date.available","2021-04-14T08:32:19Z"],["dc.date.issued","2020"],["dc.description.abstract","Using a new bis(tridentate) compartmental pyrazolate‐centered ligand HL, the bis(pyrazolato)‐bridged diiron complex [L2FeII2][OTf]2 (1) and its singly oxidized mixed‐valent congener [L2FeIIFeIII][OTf]3 (2) have been synthesized and structurally characterized. While 1 features two HS‐FeII ions coordinated to two cis‐axial pyridine moieties in a highly distorted octahedral environment, the metal ions in 2 are coordinated by the ligand strand in a trans‐axial configuration. Very different Fe–N bond lengths and distinctly different coordination polyhedra are associated with pronounced valence localization in the case of 2. The electronic structures and magnetic properties of 1 and 2 have been further investigated by Mössbauer spectroscopy and variable temperature magnetic susceptibility measurements. In the case of 1, weak antiferromagnetic coupling is observed between the two HS‐FeII ions (J = –0.6 cm–1), while the HS‐FeII and LS‐FeIII ions in 2 are ferromagnetically coupled (J = +5.2 cm–1) to give an ST = 5/2 ground state with significant zero‐field splitting (DFe(II) = 2.3 cm–1). The findings are rationalized with the help of DFT computations."],["dc.description.abstract","Dinuclear iron complexes of a new pyrazolate‐based ligand with flexible side arms were synthesized in both the FeII2 and mixed‐valent FeIIFeIII forms. Upon oxidation, large structural changes were observed, associated with a high‐spin to low‐spin transition and charge localization. The different magnetic signatures of the two compounds were evidenced by a suite of experimental methods and investigated by DFT calculations. image John Wiley \\u0026 Sons, Ltd."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.description.sponsorship","Max‐Planck‐Gesellschaft http://dx.doi.org/10.13039/501100004189"],["dc.identifier.doi","10.1002/ejic.202000697"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83884"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area B | B06 Echtzeituntersuchungen der optischen Anregung in oligonuklearen Metallkomplexen mit schaltbaren Spin- und Ladungszuständen"],["dc.relation.eissn","1099-0682"],["dc.relation.issn","1434-1948"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes."],["dc.title","Bis(pyrazolato) Bridged Diiron Complexes: Ferromagnetic Coupling in a Mixed‐Valent HS‐Fe II /LS‐Fe III Dinuclear Complex"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","97"],["dc.bibliographiccitation.journal","Frontiers in Chemistry"],["dc.bibliographiccitation.lastpage","97"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Das, Biswanath"],["dc.contributor.author","Al-Hunaiti, Afnan"],["dc.contributor.author","Sánchez-Eguía, Brenda N."],["dc.contributor.author","Zeglio, Erica"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Braunger, Steffen"],["dc.contributor.author","Haukka, Matti"],["dc.contributor.author","Repo, Timo"],["dc.contributor.author","Castillo, Ivan"],["dc.contributor.author","Nordlander, Ebbe"],["dc.date.accessioned","2019-07-09T11:50:31Z"],["dc.date.available","2019-07-09T11:50:31Z"],["dc.date.issued","2019"],["dc.description.abstract","The new di- and tetranuclear Fe(III) μ-oxido complexes [Fe4(μ-O)4(PTEBIA)4](CF3SO3)4(CH3CN)2] (1a), [Fe2(μ-O)Cl2(PTEBIA)2](CF3SO3)2 (1b), and [Fe2(μ-O)(HCOO)2(PTEBIA)2](ClO4)2 (MeOH) (2) were prepared from the sulfur-containing ligand (2-((2,4-dimethylphenyl)thio)-N,N-bis ((1-methyl-benzimidazol-2-yl)methyl)ethanamine (PTEBIA). The tetrairon complex 1a features four μ-oxido bridges, while in dinuclear 1b, the sulfur moiety of the ligand occupies one of the six coordination sites of each Fe(III) ion with a long Fe-S distance of 2.814(6) Å. In 2, two Fe(III) centers are bridged by one oxido and two formate units, the latter likely formed by methanol oxidation. Complexes 1a and 1b show broad sulfur-to-iron charge transfer bands around 400-430 nm at room temperature, consistent with mononuclear structures featuring Fe-S interactions. In contrast, acetonitrile solutions of 2 display a sulfur-to-iron charge transfer band only at low temperature (228 K) upon addition of H2O2/CH3COOH, with an absorption maximum at 410 nm. Homogeneous oxidative catalytic activity was observed for 1a and 1b using H2O2 as oxidant, but with low product selectivity. High valent iron-oxo intermediates could not be detected by UV-vis spectroscopy or ESI mass spectrometry. Rather, evidence suggest preferential ligand oxidation, in line with the relatively low selectivity and catalytic activity observed in the reactions."],["dc.identifier.doi","10.3389/fchem.2019.00097"],["dc.identifier.pmid","30881952"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15951"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59784"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","2296-2646"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","540"],["dc.title","Di- and Tetrairon(III) μ-Oxido Complexes of an N3S-Donor Ligand: Catalyst Precursors for Alkene Oxidations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","8394"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","Dalton Transactions"],["dc.bibliographiccitation.lastpage","8403"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","van der Meer, Margarethe"],["dc.contributor.author","Rechkemmer, Yvonne"],["dc.contributor.author","Breitgoff, Frauke D."],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Marx, Raphael"],["dc.contributor.author","Dörfel, María"],["dc.contributor.author","Neugebauer, Petr"],["dc.contributor.author","van Slageren, Joris"],["dc.contributor.author","Sarkar, Biprajit"],["dc.date.accessioned","2016-06-09T11:19:14Z"],["dc.date.accessioned","2021-10-27T13:12:21Z"],["dc.date.available","2016-06-09T11:19:14Z"],["dc.date.available","2021-10-27T13:12:21Z"],["dc.date.issued","2016"],["dc.description.abstract","The generation of molecular platforms, the properties of which can be influenced by a variety of external perturbations, is an important goal in the field of functional molecular materials. We present here the synthesis of a new quinonoid ligand platform containing an [O,O,O,N] donor set. The ligand is derived from a chloranilic acid core by using the [NR] (nitrogen atom with a substituent R) for [O] isoelectronic substitution. Mononuclear FeII and CoII complexes have been synthesized with this new ligand. Results obtained from single crystal X-ray crystallography, NMR spectroscopy, (spectro)electrochemistry, SQUID magnetometry, multi-frequency EPR spectroscopy and FIR spectroscopy are used to elucidate the electronic and geometric structures of the complexes. Furthermore, we show here that the spin state of the FeII complex can be influenced by temperature, pressure and light and the CoII complex displays redox-induced spinstate switching. Bistability is observed in the solid-state as well as in solution for the FeII complex. The new ligand presented here, owing to the [NR] group present in it, will likely have more adaptability while investigating switching phenomena compared to its [O,O,O,O] analogues. Thus, such classes of ligands as well as the results obtained on the reversible changes in physical properties of the metal complexes are likely to contribute to the generation of multifunctional molecular materials."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft (DFG) [SA 1580/5-1, SL 104/2-1]"],["dc.identifier.doi","10.1039/c6dt00757k"],["dc.identifier.isi","000376090100010"],["dc.identifier.pmid","27109712"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13341"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91684"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1477-9234"],["dc.relation.issn","1477-9226"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","bistability; quinonoid ligand"],["dc.title","Probing bistability in Fe-II and Co-II complexes with an unsymmetrically substituted quinonoid ligand"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","14349"],["dc.bibliographiccitation.issue","40"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","14356"],["dc.bibliographiccitation.volume","58"],["dc.contributor.author","Ghosh, Munmun"],["dc.contributor.author","Cramer, Hanna H."],["dc.contributor.author","Dechert, Sebastian"],["dc.contributor.author","Demeshko, Serhiy"],["dc.contributor.author","John, Michael"],["dc.contributor.author","Hansmann, Max M."],["dc.contributor.author","Ye, Shengfa"],["dc.contributor.author","Meyer, Franc"],["dc.date.accessioned","2019-11-25T10:59:28Z"],["dc.date.accessioned","2021-10-27T13:12:46Z"],["dc.date.available","2019-11-25T10:59:28Z"],["dc.date.available","2021-10-27T13:12:46Z"],["dc.date.issued","2019"],["dc.description.abstract","The reaction of the ferrous complex [LFe(NCMe)2 ](OTf)2 (1), which contains a macrocyclic tetracarbene as ligand (L), with Na(OCP) generates the OCP- -ligated complex [LFe(PCO)(CO)]OTf (2) together with the dinuclear μ-phosphido complex [(LFe)2 P](OTf)3 (3), which features an unprecedented linear Fe-(μ-P)-Fe motif and a \"naked\" P-atom bridge that appears at δ=+1480 ppm in the 31 P NMR spectrum. 3 exhibits rich redox chemistry, and both the singly and doubly oxidized species 4 and 5 could be isolated and fully characterized. X-ray crystallography, spectroscopic studies, in combination with DFT computations provide a comprehensive electronic structure description and show that the Fe-(μ-P)-Fe core is highly covalent and structurally invariant over the series of oxidation states that are formally described as ranging from FeIII FeIII to FeIV FeIV . 3-5 now add a higher homologue set of complexes to the many systems with Fe-(μ-O)-Fe and Fe-(μ-N)-Fe core structures that are prominent in bioinorganic chemistry and catalysis."],["dc.identifier.doi","10.1002/anie.201908213"],["dc.identifier.eissn","1521-3773"],["dc.identifier.isbn","1350785"],["dc.identifier.issn","1433-7851"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16707"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91720"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.eissn","1521-3773"],["dc.relation.issn","1433-7851"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","CC BY 4.0"],["dc.rights.access","openAccess"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject","N-heterocyclic carbenes; electronic structure; iron complexes; phosphido complexes; redox series"],["dc.subject.ddc","540"],["dc.title","A μ-Phosphido Diiron Dumbbell in Multiple Oxidation States"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]