Herbst-Irmer, Regine

[["dc.bibliographiccitation.firstpage","2694"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Inorganic Chemistry"],["dc.bibliographiccitation.lastpage","2698"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Heine, Andreas"],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Sheldrick, George M."],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2019-07-09T11:52:13Z"],["dc.date.available","2019-07-09T11:52:13Z"],["dc.date.issued","1993"],["dc.description.abstract","The crystal structures of (MesSi),Si.THF (a = b = 12.310(1) A, c = 17.308(2) A, tetragonal, space group P4/ncc (No. 130), Z = 4), [(Me3Si)&i][(Me3Si)3SiLi(THF)3](a~ = b = 15.146(8) A, c = 21.338(10) A, trigonal, space groupP3cl (No. 165), Z = 2), (Me3Si)3SiLi(THF)3 (a = b = 31.342(4) A, c = 22.000(6) A, rhombohedral, space groupR3c (No. 161), Z = 24), and (Me3Si)3SiSi(SiMe3)3aTHF (a = 11.360(3) A, b = 17.131(6) A, c = 18.952(6) A, 0 = 91.21(3)', monoclinic, space group P21/c (No. 14), Z = 4), have been determined by low-temperature X-ray analysis. Whereas the small S i S i S i angle in (tris(trimethylsily1)silyl)lithium of 102.1 O supports the ionic character of the Si-Li bond, there must be at least some covalent contribution leading to a J[%,7Li] coupling constant of 38.6 Hz. A modified preparation for (Me3si)~siLi(THF)is~ reported giving the pure product rather than the cocrystallization product [(Me3Si)4Si] [(Me3Si)3SiLi(THF)3]2, where the starting material is still present in the ratio 1:2. The pure product is far more reactive than the cocrystallized material and is as pyrophoric as 'BuLi powder."],["dc.identifier.doi","10.1021/ic00064a019"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3369"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/60120"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Structural characterization of two modifications of tris(tetrahydrofuran)(tris(trimethylsilyl)silyl)lithium: a compound with a silicon-29-lithium-7 NMR coupling"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","363"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Acta Crystallographica / B"],["dc.bibliographiccitation.lastpage","373"],["dc.bibliographiccitation.volume","50"],["dc.contributor.author","Heine, Andreas"],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Stalke, Dietmar"],["dc.contributor.author","Kühnle, Wolfgang"],["dc.contributor.author","Zachariasse, Klaas A."],["dc.date.accessioned","2009-07-03T12:36:17Z"],["dc.date.accessioned","2021-10-27T13:12:07Z"],["dc.date.available","2009-07-03T12:36:17Z"],["dc.date.available","2021-10-27T13:12:07Z"],["dc.date.issued","1994"],["dc.description.abstract","The amino N atom in 4-aminobenzonitrile (ABN) and 4-(dimethylamino)benzonitrile (DMABN) has a pyramidal character, with values of 34(3) and 11.9 (3) c~, respectively, for the angle between the planes of the amino group and the phenyl ring. In 3,5-dimethyl-4-(dimethylamino)benzonitrile (MMD) at 173 K, the dimethylamino group is twisted over an angle of 59.3 (2) \"~ with respect to the phenyl plane. In addition, the amino N(1) atom is not located in the plane of the phenyl ring, with an out-of-plane displacement of 0.117 (5)/~. The N-phenyl bond length in MMD of 1.414 (3)/~ is larger that that in the four other aminobenzonitriles, for which an average bond length of 1.367,~ is found. With DMABN, the crystal structure consists of stacks with an alternating orientation of the molecules. In the crystals of ABN, 3,5-dimethyl-4-(methylamino)benzonitrile (MHD) and 4-amino-3,5-dimethylbenzonitrile (HHD), hydrogen bonding is an important structural element. In ABN and MHD, hydrogen bonds are formed between an amino H atom and the cyano N atom of adjacent molecules. In HHD, each H atom is linked to a cyano N atom of two different neighbouring molecules, in a layered structure consisting of squares and octagons. Temperature-dependent solid-solid phase transitions are observed with all five aminobenzonitriles studied here. Crystals of the low-temperature phase could only be obtained from ABN, with lattice constants which are considerably different from those observed at room temperature."],["dc.format.mimetype","application/pdf"],["dc.identifier.doi","10.1107/S0108768193008523"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3406"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91660"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","anorganische Chemie"],["dc.subject.ddc","540"],["dc.title","Structure and crystal packing of 4-aminobenzonitriles and 4-amino-3,5-dimethylbenzonitriles at various temperatures"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1907"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Chemische Berichte"],["dc.bibliographiccitation.lastpage","1912"],["dc.bibliographiccitation.volume","124"],["dc.contributor.author","Meller, Anton"],["dc.contributor.author","Böker, Christian"],["dc.contributor.author","Seebold, Uwe"],["dc.contributor.author","Bromm, Dietmar"],["dc.contributor.author","Maringgele, Walter"],["dc.contributor.author","Heine, Andreas"],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Pohl, Ehmke"],["dc.contributor.author","Stalke, Dietmar"],["dc.contributor.author","Noltemeyer, Mathias"],["dc.contributor.author","Sheldrick, George M."],["dc.date.accessioned","2019-07-09T11:52:08Z"],["dc.date.available","2019-07-09T11:52:08Z"],["dc.date.issued","1991"],["dc.description.abstract","The reaction of subvalent boron species generated by the defluorination of difluoro(diorganylamino)borane with Na/K alloy in the presence of 1,4-disubstituted benzene derivatives leads to products which contain two (diorganylamino)boradiyl units and two remaining double bonds which are located on the substituted C atoms. Compounds 5 to 8 exhibit structures based on a 2,8-diborabicyclo[3,2,1]octa-3,6-diene skeleton while 9 shows a skeleton with a 1,3a,4,6a-tetrahydroborolo[3,2-b]borole structure. The latter structure corresponds to that of 1 obtained in the same reaction with benzene. The compounds are characterized by elemental analyses and spectroscopically [Mp. NMR (1H, 11B, 13C, 15N, 19F, 29Si)]. X-ray structure analyses are presented for 1, 6, 7, 8, and 9."],["dc.identifier.doi","10.1002/cber.19911240904"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3336"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/60104"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Zweifache Borylierung von Benzolderivaten mit (Diisoalkylamino)boradiyl-Einheiten"],["dc.title.alternative","Twofold Borylation of Benzene Derivatives with (Diisoalkylamino)boradiyl Units"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1927"],["dc.bibliographiccitation.issue","23"],["dc.bibliographiccitation.journal","Journal of the Chemical Society. Chemical communications"],["dc.bibliographiccitation.lastpage","1731"],["dc.contributor.author","Heine, Andreas"],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Stalke, Dietmar"],["dc.date.accessioned","2009-07-03T10:56:36Z"],["dc.date.accessioned","2021-10-27T13:12:03Z"],["dc.date.available","2009-07-03T10:56:36Z"],["dc.date.available","2021-10-27T13:12:03Z"],["dc.date.issued","1993"],["dc.description.abstract","The title compound is obtained from the reaction of (Me3Si)3SiLi(thf)3 with CuBr in n-hexane and structurally characterised by X-ray diffraction; in [Cu2R2BrLi(thf)3], R = Si(SiMe3)3 one silyl ligand is bridging a very short Cu–Cu bond, resulting in a three-centre two-electron bond, while the second is terminally bound to copper; the other copper atom is linked to a lithium atom via a Cu Br Li bridge."],["dc.format.mimetype","application/pdf"],["dc.identifier.doi","10.1039/C39930001729"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3391"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91654"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","anorganische Chemie"],["dc.subject.ddc","540"],["dc.title","[Cu2R2BrLi(thf)3], R = Si(SiMe3)3–a complex containing five-coordinate silicon in a three-centre two-electron bond (thf = tetrahydrofuran)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1107"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Chemische Berichte"],["dc.bibliographiccitation.lastpage","1109"],["dc.bibliographiccitation.volume","125"],["dc.contributor.author","Koch, Hans-Joachim"],["dc.contributor.author","Schulz, Stefan"],["dc.contributor.author","Roesky, Herbert W."],["dc.contributor.author","Noltemeyer, Mathias"],["dc.contributor.author","Schmidt, Hans-Georg"],["dc.contributor.author","Heine, Andreas"],["dc.contributor.author","Herbst-Irmer, Regine"],["dc.contributor.author","Stalke, Dietmar"],["dc.contributor.author","Sheldrick, George M."],["dc.date.accessioned","2019-07-09T11:52:12Z"],["dc.date.available","2019-07-09T11:52:12Z"],["dc.date.issued","1992"],["dc.description.abstract","The compounds Cp AlCl2 (3) (Cp = Me5C5) and CpAlCl2 (4) (Cp = EtMe4C5) have been prepared by the reaction of Cp SiMe3 (1) and CpSiMe3 (2) with AlCl3. The single-crystal X-ray structures of 3 and 4 are reported."],["dc.identifier.doi","10.1002/cber.19921250520"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/3353"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/60113"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Synthese und Struktur von CpAlCl2-Verbindungen mit sterisch anspruchsvollen Substituenten (Cp = Me5C5, EtMe4C5)"],["dc.title.alternative","The compounds Cp*AlCl2 (3) (Cp* = Me5C5) and CpAlCl2 (4) (Cp = EtMe4C5) have been prepared by the reaction of Cp*SiMe3 (1) and CpSiMe3 (2) with AlCl3. The single-crystal X-ray structures of 3 and 4 are reported"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]