Oxidative-addition of germanium hydrogen bonds to triosmium centers: Reactions of Os3(CO)10(μ-dPPm) and Os3(CO)8(μ3-Ph2PCH2P(Ph)C6F14)(μ-H) with Ph3GeH

被引：10
|
作者：
Hague, Mohd. Rezaul [1 ]
Hossain, Md. Jakir [1 ]
Rahaman, Ahibur [1 ]
Ghosh, Shishir [1 ]
Kabir, Shariff E. [1 ]
Hogarth, Graeme [2 ]
Tocher, Derek A. [3 ]
机构：
[1] Jahangirnagar Univ, Dept Chem, Dhaka 1342, Bangladesh
[2] Kings Coll London, Dept Chem, Britannia House,7 Trinity St, London SE1 1DB, England
[3] UCL, Dept Chem, 20 Gordon St, London WC1H OAJ, England
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2016年 / 812卷
关键词：
Triosmium clusters; Carbonyls; Triphenylgermanium hydride (Ph3GeH); Bis(diphenylphosphino)methane (dppm); Oxidative-addition of Ge-H bond; X-ray structures; CARBONYL CLUSTER COMPLEXES; TIN REFORMING CATALYSTS; SELECTIVE HYDROGENATION; CITRAL HYDROGENATION; GE CATALYSTS; SOLVENT-FREE; N-HEXANE; RH-GE; SN; LIGANDS;
D O I：
10.1016/j.jorganchem.2015.05.060
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Reactions of the triosmium clusters Os-3(CO)(10)(mu-dppm) [dppm=bis(diphenylphosphino)methane] and Os-3(CO)(8)(mu(3)-Ph2PCH2P(Ph)C6H4)(mu-H) with Ph3GeH are described. With Os-3(CO)(10)(mu-dppm) at 110 degrees C the oxidative-addition product Os-3(CO)(9)(GePh3)(mu-dppm)(mu-H) (1) initially results, but further decarbonylates upon prolonged heating to give 46-electron Os-3(CO)(7)(GePh3)(mu(3)-h(2)PCH(2)P(Ph)C6H4)(mu-H)(2) (2) resulting from C-H bond activation of the diphosphine. The pre-activated Os-3(CO)(8)(mu(3)- Ph2PCH2P(Ph)C6H4)(mu-H) reacts with Ph3GeH under milder conditions (40 degrees C) to afford Os-3(CO)(8)(GePh3)(2)(mu-dppm)(mu-H)(2) (3) together with 1. Cluster 3 converts into 2 upon heating and the direct reaction between Os-3(CO)(8)(mu(3)-Ph2PCH2P(Ph)C6H4)(mu-H) and Ph3GeH at 110 degrees C also produces 2. All these clusters have been structurally characterized by single crystal X-ray diffraction analysis. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：240 / 246
页数：7
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