Stasch, Andreas

[["dc.bibliographiccitation.firstpage","1945"],["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Dalton Transactions"],["dc.bibliographiccitation.lastpage","1947"],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Schormann, M."],["dc.contributor.author","Prust, J."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Schmidt, H. G."],["dc.contributor.author","Noltemeyer, M."],["dc.date.accessioned","2018-11-07T09:36:01Z"],["dc.date.available","2018-11-07T09:36:01Z"],["dc.date.issued","2001"],["dc.description.abstract","[Et4N][HF2] reacted with VO(acac)(2) and MoO2(acac)(2) in acetonitrile at room temperature with elimination of Hacac to produce the metalates [Et4N][(acac)VOF2] 1 and [Et4N][(acac)MoO2F2] 2, respectively. These compounds are the first examples of fluorometalates of vanadium and molybdenum bearing the acetylacetonato group. The crystal structures have been determined."],["dc.identifier.doi","10.1039/b100740h"],["dc.identifier.isi","000169786600005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32518"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1472-7773"],["dc.title","Acetylacetonatodifluorooxometalates of vanadium and molybdenum: syntheses and crystal structures"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4046"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","European Journal of Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","4051"],["dc.contributor.author","Zhu, H. P."],["dc.contributor.author","Chai, J. F."],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Blunck, T."],["dc.contributor.author","Vidovic, D."],["dc.contributor.author","Magull, Joerg"],["dc.contributor.author","Schmidt, H. G."],["dc.contributor.author","Noltemeyer, M."],["dc.date.accessioned","2018-11-07T10:44:46Z"],["dc.date.available","2018-11-07T10:44:46Z"],["dc.date.issued","2004"],["dc.description.abstract","The solid-state reaction of LAl and imidazol-2-ylidene at elevated temperature (120 degreesC) yielded the aluminum monohydride N-heterocyclic carbene adduct [(HC[C(CH2)NAr] (CMeNAr)}AIH-(CN(R)C2Me2N(R)}] [R = iPr (1), Me (2)]. Compounds 1 and 2 have been characterized by spectroscopic (IR, and H-1 and C-13 NMR), mass spectrometric, and elemental analyses, and I was further characterized by Xray structural analysis. These experimental data indicate that the AI-H bond is formed by hydrogen migration from one of the methyl groups of the beta-diketiminato ligand backbone. The reaction of LAl with two equivalents of diphenyldiazomethane afforded the diiminylaluminum compound LAl(N= CPh2)(2) (3), while an excess of diphenyldiazomethane resulted in the formation of Ph2C=N-N=CPh2. This suggests that Ph2C=N-N=CPh2 is initially generated and then reacts further by oxidative addition to yield 3. The X-ray structural analysis reveals that compound 3 contains the shortest Al-N-iminyl bond among those with a four-coordinate aluminum center."],["dc.identifier.doi","10.1002/ejic.200400159"],["dc.identifier.isi","000225781600011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47343"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1434-1948"],["dc.title","Reactions of the aluminum(I) monomer LAl [L = HC{(CMe)(NAr)}(2); Ar=2,6-iPr(2)C(6)H(3)]with imidazol-2-ylidene and diphenyldiazomethane. A hydrogen transfer from the L ligand to the central aluminum atom and formation of the diiminylaluminum compound LAl(N=CPh2)(2)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","171"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","+"],["dc.bibliographiccitation.volume","39"],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Hatop, H."],["dc.contributor.author","Rennekamp, C."],["dc.contributor.author","Hamilton, D. H."],["dc.contributor.author","Noltemeyer, M."],["dc.contributor.author","Schmidt, H. G."],["dc.date.accessioned","2018-11-07T10:59:15Z"],["dc.date.available","2018-11-07T10:59:15Z"],["dc.date.issued","2000"],["dc.identifier.doi","10.1002/(SICI)1521-3773(20000103)39:1<171::AID-ANIE171>3.3.CO;2-E"],["dc.identifier.isi","000084700400018"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50654"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1433-7851"],["dc.title","A facile route to group 13 difluorodiorganometalates: [nBu(4)N][R2MF2] (M = Al, Ga, In)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4056"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","European Journal of Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","4060"],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Kumar, S. S."],["dc.contributor.author","Jancik, V."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Magull, Joerg"],["dc.contributor.author","Noltemeyer, M."],["dc.date.accessioned","2018-11-07T10:44:46Z"],["dc.date.available","2018-11-07T10:44:46Z"],["dc.date.issued","2004"],["dc.description.abstract","The methylated compounds [(AIMe)(6)(AINMe(3))(2)(CCH2Ph)(6)] (4), [(AlMe)(6)(AINMe(3))(2)(CCH2CH2SiMe3)(6)] (5) and [(Al-Me)(6)(NCH2C4H3S)(6)] (6) were synthesized in good yields from the corresponding hydride derivatives by treatment with AlMe3 in toluene. The X-ray single crystal structures of 4(.)XC(7)H(8), 4(.)4C(7)H(8) and 6 were determined. In 4(.)XC(7)H(8) the solvent molecules are arranged in infinite channels along the c axis. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)"],["dc.identifier.doi","10.1002/ejic.200400347"],["dc.identifier.isi","000225781600013"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47345"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1434-1948"],["dc.title","Methyl substitution of aluminum-hydride bonds in a carbaalane and an aluminum imide"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5854"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","5857"],["dc.bibliographiccitation.volume","44"],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Noltemeyer, M."],["dc.contributor.author","Schmidt, H. G."],["dc.date.accessioned","2018-11-07T10:56:50Z"],["dc.date.available","2018-11-07T10:56:50Z"],["dc.date.issued","2005"],["dc.description.abstract","The reactions of t-BuC &3bond; CLi with a mixture of AlH(3)center dot NMe3 and ClAlH(2)center dot NMe3 in boiling toluene with the addition of [t-BuCH2(Bzl)NMe2]Cl, or a bulky beta-diketimine instead, and [n-Bu4N]Cl led to the carbaalanates [H2Al(NMe3)(2)](2)center dot[(AlH)(8)(CCH(2)t-Bu)(6)], 3, and [n-Bu4N](2)[(AlH)(8)(CCH(2)t-Bu)(6)], 4, respectively. The reaction of Me3N center dot Al(C equivalent to Ct-Bu)(3) 5 and AlH(3)center dot NMe3 in boiling toluene yielded [H(n-Bu)Al(NMe3)(2)][(AlH)(7)(AlNMe3)(CCH(2)t-Bu)(6)], 6, in trace amounts, The single-crystal X-ray structures of 3 and 6 are reported. The compounds 3, 4, and 6 consist of well-separated ion pairs introducing carbaalanates as weakly coordinating anions and stabilizing aluminum hydride cations."],["dc.identifier.doi","10.1021/ic048594k"],["dc.identifier.isi","000231030900041"],["dc.identifier.pmid","16060639"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50107"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0020-1669"],["dc.title","Aluminum hydride cations stabilized by weakly coordinating carbaalanates"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5441"],["dc.bibliographiccitation.issue","19"],["dc.bibliographiccitation.journal","Journal of the American Chemical Society"],["dc.bibliographiccitation.lastpage","5448"],["dc.bibliographiccitation.volume","124"],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Ferbinteanu, M."],["dc.contributor.author","Prust, J."],["dc.contributor.author","Zheng, W. J."],["dc.contributor.author","Cimpoesu, F."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Magull, Joerg"],["dc.contributor.author","Schmidt, H. G."],["dc.contributor.author","Noltemeyer, M."],["dc.date.accessioned","2018-11-07T10:29:50Z"],["dc.date.available","2018-11-07T10:29:50Z"],["dc.date.issued","2002"],["dc.description.abstract","The reaction of the acetylene RCequivalent toCH (R = Ph, CH2SiMe3) with an excess of AIH(3)(.)NMe(3) in boiling toluene leads to the carbaalane [(AIH)(6)(AINMe(3))(2)(CCH2R)(6)] (R = Ph 1, CH2SiMe3 2) in good yield. Treatment of 2 with BCl3 under varying conditions gives the chlorinated products [(AlCl)(6)(AlNMe3)(2)(CCH2CH2SiMe3)(6)] 3 and [(AlCl)(6)(AlNMe3)(2)(CCH2CH2SiMe2Cl)(6)] 4, respectively. The latter clearly demonstrates that the cluster can be stepwise functionalized within the inner and outer sphere. The X-ray single-crystal structures of 1, 2, and 4 have been determined. All compounds have in common that the central core consists of a cluster having eight aluminum and six carbon atoms. The bonding properties in this cluster are described as a new manifestation of three-dimensional surface aromaticity. Each Al4C fragment of the cube is formed by four bonds with three electron pairs, thus leading to a strong delocalization of the electrons. A phenomenological modeling using a three-dimensional Huckel scheme with fitted parameters to reproduce the energies from ab initio calculations revealed that the orbital scheme localized at one Al4C fragment possesses an orbital sextet with a large HOMO-LUMO gap. This is in line with the criteria of aromaticity. The idea of aromaticity was sustained also by qualitative valence bond reasons enumerating the different resonance structures by means of graph theoretical methods."],["dc.identifier.doi","10.1021/ja012035k"],["dc.identifier.isi","000175521200035"],["dc.identifier.pmid","11996585"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43729"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0002-7863"],["dc.title","Syntheses, structures, and surface aromaticity of the new carbaalane [(AlH)(6)(AlNMe3)(2)(CCH2R)(6)] (R = Ph, CH2SiMe3) and a stepwise functionalization of the inner and outer sphere of the cluster"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3625"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","3630"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Vidovic, D."],["dc.contributor.author","Magull, Joerg"],["dc.contributor.author","Schmidt, H. G."],["dc.contributor.author","Noltemeyer, M."],["dc.date.accessioned","2018-11-07T10:48:07Z"],["dc.date.available","2018-11-07T10:48:07Z"],["dc.date.issued","2004"],["dc.description.abstract","The carbaalane halogen derivatives [(AlX)(6)(AlNMe3)(2)(CCH2CH2SiMe3)(6)] (X = F (9), Cl (7), Br (10), I (11)) were prepared in toluene from [(AlH)(6)(AlNMe3)(2)(CCH2CH2SiMe3)(6)] (6) and BF3.OEt2, BX3 (X = Br, I), Me3SnF, and Me3SiX (X = Cl, Br, I), respectively. A partially halogenated product [(AlH)(2)(AlX)(4)(AlNMe3)(2)(CCH2CH2SiMe3)(6)] (12) (X = Cl (similar to40%), Br (similar to60%)) was obtained from 5 and impure BBr3. [(AlH)(6)(AlNMe3)(2)(CCH2Ph)(6)] (5) was converted to [(AlX)(6)(AlNMe3)(2)(CCH2Ph)(6)] (X = F (13), Cl (14), Br (15), I (16)) using BF3.OEt2 and Me3SiX (X = Cl, Br, I), respectively. The X-ray single-crystal structures of 11.C6H6, 12.3C(7)H(8), 13.6C(7)H(8), and 15.4C(7)H(8) were determined. Compounds 7 and 9-11 are soluble in benzene/toluene and could be well characterized by NMR spectroscopy and MS (EI) spectrometry. The results demonstrate the facile substitution of the hydridic hydrogen atoms in 5 and 6 by the halides with different reagents."],["dc.identifier.doi","10.1021/ic035460i"],["dc.identifier.isi","000221989000012"],["dc.identifier.pmid","15180416"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/48122"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0020-1669"],["dc.title","Synthesis of carbaalane halogen derivatives"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","17"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Journal of Fluorine Chemistry"],["dc.bibliographiccitation.lastpage","20"],["dc.bibliographiccitation.volume","102"],["dc.contributor.author","Rennekamp, C."],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Mueller, P."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Noltemeyer, M."],["dc.contributor.author","Schmidt, H. G."],["dc.contributor.author","Uson, I."],["dc.date.accessioned","2018-11-07T09:21:01Z"],["dc.date.available","2018-11-07T09:21:01Z"],["dc.date.issued","2000"],["dc.description.abstract","The first few steps of the title reaction of two bulky substituted primary amines with dimethylaluminumfluoride have been investigated in toluene. For RNH2 (R = 2,6-i-Pr2C6H3) the formation of an unexpected ring system (Me-2)Al-4(NHR)(2)F-2 (1, R = 2,6-i-Pr2C6H3) is observed. The reaction was repeated in an NMR tube and monitored by F-19 NMR spectroscopy. The product of Me2AlF and RNH2 (R = t-Bu) offers more information about the initial step of the reaction. During the course of the reaction the (Me2AlF)(4) ring is cleaved and yields the adduct Me2AlF . NH2R (2, R = t-Bu), which has a polymeric structure in the solid state. In both reactions no methane evolution was observed. (C) 2000 Elsevier Science S.A. All rights reserved."],["dc.identifier.doi","10.1016/S0022-1139(99)00236-5"],["dc.identifier.isi","000086394100004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29013"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Sa"],["dc.relation.issn","0022-1139"],["dc.title","Reaction of dimethylaluminumfluoride with primary amines RNH2 (R = t-Bu, 2,6-i-Pr2C6H3)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4052"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","European Journal of Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","4055"],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Singh, S."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Noltemeyer, M."],["dc.contributor.author","Schmidt, H. G."],["dc.date.accessioned","2018-11-07T10:44:46Z"],["dc.date.available","2018-11-07T10:44:46Z"],["dc.date.issued","2004"],["dc.description.abstract","The reactions of AlCl3 and GaCl3 with 1,3,4,5-tetramethylimidazole-2-ylidene in toluene at room temperature affords the 1:1 adducts 5 and 6, respectively. The use of a bulky N-heterocyclic carbene (NHC) in toluene/THF and AlCl3 results in the formation of an imidazolium salt 7 with the tetrachloroaluminate anion. A 1:1 adduct 8 of 1,3,4,5-tetramethylimidazole-2(3H)-thione with AlCl3 is obtained in toluene. The crystal structures of 5(.)0.5C(7)H(8), 7-THF and 8 were determined. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)"],["dc.identifier.doi","10.1002/ejic.200400247"],["dc.identifier.isi","000225781600012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47344"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1434-1948"],["dc.title","Adducts of aluminum and gallium trichloride with a N-heterocyclic carbene and an adduct of aluminum trichloride with a thione"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3461"],["dc.bibliographiccitation.issue","18"],["dc.bibliographiccitation.journal","Angewandte Chemie International Edition"],["dc.bibliographiccitation.lastpage","+"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Zheng, W. J."],["dc.contributor.author","Stasch, A."],["dc.contributor.author","Prust, J."],["dc.contributor.author","Roesky, H. W."],["dc.contributor.author","Cimpoesu, F."],["dc.contributor.author","Noltemeyer, M."],["dc.contributor.author","Schmidt, H. G."],["dc.date.accessioned","2018-11-07T09:28:24Z"],["dc.date.available","2018-11-07T09:28:24Z"],["dc.date.issued","2001"],["dc.identifier.doi","10.1002/1521-3773(20010917)40:18<3461::AID-ANIE3461>3.0.CO;2-3"],["dc.identifier.isi","000171095400041"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30767"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1433-7851"],["dc.title","A polyhedral aluminum compound with an Al4C4N4 framework"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]