Ghadwal, Rajendra Singh

[["dc.bibliographiccitation.firstpage","4561"],["dc.bibliographiccitation.issue","38"],["dc.bibliographiccitation.journal","Chemical Communications"],["dc.bibliographiccitation.lastpage","4563"],["dc.bibliographiccitation.volume","48"],["dc.contributor.author","Azhakar, Ramachandran"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Wolf, Hilke"],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2018-11-07T09:15:25Z"],["dc.date.available","2018-11-07T09:15:25Z"],["dc.date.issued","2012"],["dc.description.abstract","The first base stabilized monoalkylsilylenes LSitBu (2) and LSi[C(SiMe3)(3)] (3) (L = PhC(NtBu)(2)) were synthesized by the facile metathesis reactions of LitBu and KC(SiMe3)(3) with LSiCl (1). The reaction of LSitBu (2) with N2O afforded the dimer [LSitBu(mu-O)](2) (4) which contains a four-membered Si2O2 ring."],["dc.identifier.doi","10.1039/c2cc31041d"],["dc.identifier.isi","000302743000010"],["dc.identifier.pmid","22460291"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27682"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1359-7345"],["dc.title","A debut for base stabilized monoalkylsilylenes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3952"],["dc.bibliographiccitation.issue","23"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","3955"],["dc.bibliographiccitation.volume","49"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Sen, Sakya S."],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Granitzka, Markus"],["dc.contributor.author","Kratzert, Daniel"],["dc.contributor.author","Merkel, Sebastian"],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2018-11-07T08:46:57Z"],["dc.date.available","2018-11-07T08:46:57Z"],["dc.date.issued","2010"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.identifier.doi","10.1002/anie.201000835"],["dc.identifier.isi","000278596800018"],["dc.identifier.pmid","20397177"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20822"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1433-7851"],["dc.title","Convenient Access to Monosilicon Epoxides with Pentacoordinate Silicon"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","262"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Catalysts"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Ho, Nga Kim T."],["dc.contributor.author","Reichmann, Sven O."],["dc.contributor.author","Rottschäfer, Dennis"],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.date.accessioned","2020-12-10T18:46:58Z"],["dc.date.available","2020-12-10T18:46:58Z"],["dc.date.issued","2017"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.identifier.doi","10.3390/catal7090262"],["dc.identifier.eissn","2073-4344"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17014"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78599"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","MDPI"],["dc.relation.eissn","2073-4344"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Expanding the Scope of Cu(I) Catalyzed “Click Chemistry” with Abnormal NHCs: Three-Fold Click to Tris-Triazoles"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","7664"],["dc.bibliographiccitation.issue","24"],["dc.bibliographiccitation.journal","Dalton Transactions"],["dc.bibliographiccitation.lastpage","7667"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Lamm, Jan-Hendrik"],["dc.contributor.author","Rottschaefer, Dennis"],["dc.contributor.author","Schuermann, Christian J."],["dc.contributor.author","Demeshko, Serhiy"],["dc.date.accessioned","2018-11-07T10:22:30Z"],["dc.date.available","2018-11-07T10:22:30Z"],["dc.date.issued","2017"],["dc.description.abstract","Deprotonation of [IPrPh]I (1) with Co{N(SiMe3)(2)}(2) readily affords the abnormal N-heterocyclic carbene (aNHC) complex (aIPr(Ph))(2)CoI2 (2) (aIPr(Ph) = 1,3-bis(2,6-iPr(2)C(6)H(3))-2-phenyl-imidazol4-ylidene). Treatment of 1 with NaHBEt3 yields (aIPr(Ph)) BEt3 (3) that serves as an aNHC-transfer agent and yields (aIPr(Ph)) Co{N(SiMe3)(2)}(2) (4) on reaction with Co{N(SiMe3)(2)}(2)."],["dc.identifier.doi","10.1039/c7dt01778b"],["dc.identifier.isi","000403968300004"],["dc.identifier.pmid","28573296"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42288"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1477-9234"],["dc.relation.issn","1477-9226"],["dc.title","Facile routes to abnormal-NHC-cobalt(II) complexes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","10018"],["dc.bibliographiccitation.issue","29"],["dc.bibliographiccitation.journal","Journal of the American Chemical Society"],["dc.bibliographiccitation.lastpage","10020"],["dc.bibliographiccitation.volume","132"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Granitzka, Markus"],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2018-11-07T08:41:16Z"],["dc.date.available","2018-11-07T08:41:16Z"],["dc.date.issued","2010"],["dc.description.abstract","Reaction of IPr.SiCl2 (1) [IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene] with 1-azidoadamantane leads to functionalized N-heterocyclic carbene (NHC) 2. Silyl-substituted NHC 2 reacts easily with 1-azidoadamantane to form triazene 3, in which the exocyclic C=N bond is slightly shorter than those of regular NHC-derived triazines. 2 could serve as a promising ligand for transition metals."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft (DFG)"],["dc.identifier.doi","10.1021/ja104386g"],["dc.identifier.isi","000280227700033"],["dc.identifier.pmid","20608639"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19430"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0002-7863"],["dc.title","A Facile Route to Functionalized N-Heterocyclic Carbenes (NHCs) with NHC Base-Stabilized Dichlorosilylene"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","85"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Chemistry - A European Journal"],["dc.bibliographiccitation.lastpage","88"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Merkel, Sebastian"],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2018-11-07T08:47:19Z"],["dc.date.available","2018-11-07T08:47:19Z"],["dc.date.issued","2010"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.identifier.doi","10.1002/chem.200902930"],["dc.identifier.isi","000274007900010"],["dc.identifier.pmid","19950343"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20921"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0947-6539"],["dc.title","Ambiphilicity of Dichlorosilylene in a Single Molecule"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","528"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Chemistry - An Asian Journal"],["dc.bibliographiccitation.lastpage","533"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Azhakar, Ramachandran"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Hey, Jakob"],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2018-11-07T09:12:24Z"],["dc.date.available","2018-11-07T09:12:24Z"],["dc.date.issued","2012"],["dc.description.abstract","Three transition-metalcarbonyl complexes [V(L)(CO)3(Cp)] (1), [Co(L)(CO)(Cp)] (2), and [Co(L2)(CO)3]+[CoCO)4]- (3), each containing stable N-heterocyclic-chlorosilylene ligands (L; L=PhC(NtBu)2SiCl) were synthesized from [V(CO)4(Cp)], [Co(CO)2(Cp)], and Co2(CO)8, respectively. Complexes 13 were characterized by NMR and IR spectroscopy, EI-MS spectrometry, and elemental analysis. The molecular structures of compounds 13 were determined by single-crystal X-ray diffraction."],["dc.identifier.doi","10.1002/asia.201100722"],["dc.identifier.isi","000300871500011"],["dc.identifier.pmid","22246607"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26940"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1861-4728"],["dc.title","Facile Access to Transition-Metal-Carbonyl Complexes with an Amidinate-Stabilized Chlorosilylene Ligand"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","444"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Accounts of Chemical Research"],["dc.bibliographiccitation.lastpage","456"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Azhakar, Ramachandran"],["dc.contributor.author","Roesky, Herbert W."],["dc.date.accessioned","2018-11-07T09:28:05Z"],["dc.date.available","2018-11-07T09:28:05Z"],["dc.date.issued","2013"],["dc.description.abstract","Isolating stable compounds with low-valent main group elements have long been an attractive research topic, because several of these compounds can mimic transition metals in activating small molecules. In addition, compounds with heavier low-valent main group elements have fundamentally different electronic properties when compared with their lighter congeners. Among group 14 elements, the heavier analogues of carbenes (R2C:) such as silylenes (R2Si:), germylenes (R2Ge:), stannylenes (R2Sn:), and plumbylenes (R2Pb:) are the most studied species with low-valent elements. The first stable carbene and silylene species were isolated as N-heterocycles. Among the dichlorides of group 14 elements, CCl2 and SiCl2 are highly reactive intermediates and play an important role in many chemical transformations. GeCl2 can be stabilized as a dioxane adduct, whereas SnCl2/ and PbCl2 are available as stable compounds. In the Siemens process, which produces electronic grade silicon by thermal decomposition of HSiCl3 at 1150 degrees C, chemists proposed dichlorosilylene (SiCl2) as an intermediate, which further dissociates to Si and SiCl4. Similarly, base induced disproportionation of HSiCl3 or Si2Cl6 to SiCl2 is a known reaction. Trapping these products in situ with organic substrates suggested the mechanism for this reaction. In addition, West and co-workers reported a polymeric trans-chain like perchloropolysilane (SiCl2)(n). However, the isolation of a stable free monomeric dichlorosilylene remained a challenge. The first successful attempt of taming SiCl2 was the isolation of monochlorosilylene PhC(NtBu)(2)SiCl supported by an amidinate ligand in 2006. In 2009, we succeeded in isolating N-heterocyclic carbene (NHC) stabilized dichlorosilylene (NHC)SiCl2 with a three coordinate silicon atom. (The NHC is 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr) or 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes).) Notably, this method allows for the almost quantitative synthesis of (NHC)SiCl2 without using any hazardous reducing agents. Dehydrochlorination of HSiCl(3) with NHC under mild reaction conditions produces (NHC)SiCl2. We can separate the insoluble side product (NHC)HCl readily and recycle it to form NHC. The high yield and facile access to dichlorosilylene allow us to explore its chemistry to a greater extent. In this Account, we describe the results using (NHC)SiCl2 primarily from our laboratory, including findings by other researchers. We emphasize the novel silicon compounds, which supposedly existed only as short-lived species. We also discuss silaoxirane, silaimine with tricoordinate silicon atom, silaisonitrile, and silaformyl chloride. In analogy with N-heterocyclic silylenes (NHSis), oxidative addition reactions of organic substrates with (NHC)SiCl2 produce Si(IV) compounds. The presence of the chloro-substituents both on (NHC)SiCl2 and its products allows metathesis reactions to produce novel silicon compounds with new functionality. These substituents also offer the possibility to synthesize interesting compounds with low-valent silicon by further reduction. Coordination of NHC to the silicon increases the acidity of the backbone protons on the imidazole ring, and therefore (NHC)SiCl2 can functionalize NHC at the C-4 or C-5 position."],["dc.description.sponsorship","DFG; Alexander von Humboldt Foundation, Germany"],["dc.identifier.doi","10.1021/ar300196u"],["dc.identifier.isi","000315478700024"],["dc.identifier.pmid","23181482"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30689"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","1520-4898"],["dc.relation.issn","0001-4842"],["dc.title","Dichlorosilylene: A High Temperature Transient Species to an Indispensable Building Block"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","431"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Zeitschrift für anorganische und allgemeine Chemie"],["dc.bibliographiccitation.lastpage","433"],["dc.bibliographiccitation.volume","635"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Jones, Peter G."],["dc.date.accessioned","2018-11-07T08:35:39Z"],["dc.date.available","2018-11-07T08:35:39Z"],["dc.date.issued","2009"],["dc.description.abstract","N-Heterocyclic carbene adducts of aluminium triiodide, 1Mes.AlI(3) (1) and IPr-AlI(3) (2) (lMes = 1.3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene and IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) are reported. These adducts are available by the reaction of Aluminium triiodide with the corresponding N-heterocyclic carbene. Compounds 1 and 2 are soluble in hydrocarbon solvents, stable in inert atmosphere, and have been characterised by elemental analysis, NMR spectroscopy and single-crystal X-ray diffraction studies."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.identifier.doi","10.1002/zaac.200801350"],["dc.identifier.isi","000264830400005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18121"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","0044-2313"],["dc.title","N-Heterocyclic Carbene Adducts of Aluminium Triiodide"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","no"],["dc.bibliographiccitation.issue","30"],["dc.bibliographiccitation.journal","ChemInform"],["dc.bibliographiccitation.lastpage","no"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Ghadwal, Rajendra S."],["dc.contributor.author","Reichmann, Sven O."],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.date.accessioned","2021-12-08T12:30:18Z"],["dc.date.available","2021-12-08T12:30:18Z"],["dc.date.issued","2015"],["dc.identifier.doi","10.1002/chin.201530176"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/96390"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-476"],["dc.relation.issn","0931-7597"],["dc.rights.uri","http://doi.wiley.com/10.1002/tdm_license_1.1"],["dc.title","ChemInform Abstract: Palladium-Catalyzed Direct C2-Arylation of an N-Heterocyclic Carbene: An Atom-Economic Route to Mesoionic Carbene Ligands."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]