Zobrazeno 1 - 10 of 12 pro vyhledávání: '"Ulrich Wecker"'
1
A series of mono- and dihydrido- as well as mono- and dimethylosmium(II) complexes containing [(mes)Os(CNR)] as a building block
Autor: Helmut Werner, Ulrich Wecker
Publikováno v: Journal of Organometallic Chemistry. :192-201
The dihydridoosmium(II) complexes [(mes)OsH2(CNR)] (7–10) were prepared in excellent yield from the dichloroosmium(II) precursors [(mes)OsCl2(CNR)] upon treatment with 10% magnesium amalgam in THF in the presence of ethanol. Under similar condition
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98bc2f7d85de2b4b44a44bf6cf94f66e
https://doi.org/10.1016/s0022-328x(99)00394-0
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2
Halfsandwich‐Type Osmium Complexes Containing Phosphanylmethanide and Phosphanyl Alcoholate Anions as Bidentate Ligands
Autor: Hans Georg von Schnering, Helmut Werner, Norbert Mahr, Gerhard Henig, Ulrich Wecker, Karl Peters
Publikováno v: Chemische Berichte. 128:1175-1181
The mononuclear dichloroosmium(II) complexes [(mes)-Os(L)Cl2] (2-5) with the phosphanyl ether L = iPr2PCH2-CH2OMe and phosphanyl esters L = IPr2P(CH2)nCO2R as ligands are obtained from [(mes)OsCl2]n and L in almost quantitative yield. While compound
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf704c4d0e560d96b3183c4b4f7d405b
https://doi.org/10.1002/cber.19951281207
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3
Photochemistry of Os(η6-arene) complexes in low-temperature matrices: an infrared spectroscopic study of CH bond activation
Autor: Chris Hall, Andrew McCamley, Stefan Stahl, Robin N. Perutz, Sally-Ann Brough, Helmut Werner, Ulrich Wecker
Publikováno v: Journal of Organometallic Chemistry. 504:33-46
The photochemistry of a series of Os(η6-arene) complexes has been investigated in argon, methane and dinitrogen matrices with IR and UV/vis detection. The coordinatively unsaturated complex, Os(η6-C6H3Me3)(CO), may be formed by photolysis of either
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f59b73089f6e1eee5edd3b816bb4148f
https://doi.org/10.1016/0022-328x(95)05609-s
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4
Studien zur CH‐Aktivierung, X. Synthese von Alkyl(carbonyl)hydrido‐ und Allylhydrido‐Osmiumkomplexen durch Metall‐initiierte Fragmentierung von primären Alkoholen und Olefinen
Autor: Helmut Werner, Ulrich Wecker, Karl Peters, Hans-Georg von Schnering
Publikováno v: Chemische Berichte. 127:1021-1029
Studies on CH Activation, X. — Synthesis of Alkyl(carbonyl)hydrido- and Allylhydridoosmium Complexes by Metal-initiated Fragmentation of Primary Alcohols and Olefins1 The reaction of [(Mes)OsCl2]n (1) with RCH2OH/NaOH in the presence of propene lea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9449a28dcb99f1d6f059ee8c42cc9bd
https://doi.org/10.1002/cber.19941270609
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5
Halogeno(phenyl)-, Diphenyl-, Amino(phenyl)carben-und Phenylimido-Osmiumkomplexe durch Reaktion von [(Mes)Os(CNR)C12] mit Phenyllithium und Phenyl-Grignardreagenzien
Autor: Hans Georg von Schnering, Ulrich Wecker, Karl Peters, Helmut Werner
Publikováno v: Journal of Organometallic Chemistry. 469:205-212
On treatment of [(Mes)Os(CNR)Cl 2 ] ( 2 : R  t Bu; 4 : R  Cy; 5 : R  Xyl)* with C 6 H 5 MgBr, the diphenyl- and the bromo(phenyl)osmium(II) compounds [(Mes)OsPh 2 (CNR)] ( 7 – 9 ) and [(Mes)OsPh(CNR)Br] ( 10 – 12 ) are formed. As a minor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::705725aff3d8b4838952100fd3c3acd8
https://doi.org/10.1016/0022-328x(94)88074-3
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6
ChemInform Abstract: Novel Synthesis and Vibrational Analysis of (Arene)osmium(II) Complexes of the Type ((C6H3(CH3)3)OsH2(L))
Autor: Wolfgang Kiefer, Helmut Werner, T. Polzer, Ulrich Wecker, A. Ellebracht
Publikováno v: ChemInform. 24
The dihydridoosmium(II) complexes [(mes)OsH2(L)] (mes  C6H3(CH3)3; L  CO, 4; CNCH3, 5) have been prepared in nearly quantitative yields from [(mes)OsCl2(L)] (L  CO, 1; CNCH3, 2) and Mg/Hg in THF in the presence of C2H5OH as a proton source.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d21b10dd0df569222eb982e61ca23836
https://doi.org/10.1002/chin.199304226
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8
Novel synthesis and vibrational analysis of (arene)osmium(II) complexes of the type [(C6H3(CH3)3)OsH2(L)]
Autor: Wolfgang Kiefer, A. Ellebracht, T. Polzer, Helmut Werner, Ulrich Wecker
Publikováno v: Journal of Organometallic Chemistry. 438:319-328
The dihydridoosmium(II) complexes [(mes)OsH2(L)] (mes  C6H3(CH3)3; L  CO, 4; CNCH3, 5) have been prepared in nearly quantitative yields from [(mes)OsCl2(L)] (L  CO, 1; CNCH3, 2) and Mg/Hg in THF in the presence of C2H5OH as a proton source.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50baa7ffed73d5b3c72ae1877b35e7dd
https://doi.org/10.1016/0022-328x(92)83415-e
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9
Reaktionen von [(Mes)Os(CO)C12] mit alkyl-grignardreagenzien: Ein einfacher weg zu carbonyl(olefin)osmium(0)-komplexen
Autor: Helmut Werner, Ulrich Wecker
Publikováno v: Journal of Organometallic Chemistry. 424:199-211
From [(MeS)Os(CO)Cl2] (2) and RMgX, both dialkylosmium(II) complexes [(Mes)OsR2(CO)] (7: R = C2H5; 10: R = n-C3H7; 12: R = i-C3H7; 14: R = n-C4H9) and alkyl(halogeno)osmium(II) derivatives [(Mes)OsR(CO)X] (6: R = C2H5, X = I; 9: R = n-C3H7, X = I; 11
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48d7d20e5741327b4b6e0191198388c6
https://doi.org/10.1016/0022-328x(92)83150-g
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