Novel phospholyl(diphenylphosphino)methane-ruthenium complexes: Unexpected non-assisted cis to trans isomerization of RuCl_2(κ ~2-P-P′)_2

Nguyen D.H.; Daran J.-C.; Mallet-Ladeira S.Davin T.Maron L.Urrutigo?ty M.Kalck P.Gouygou M.

首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Novel phospholyl(diphenylphosphino)methane-ruthenium complexes: Unexpected non-assisted cis to trans isomerization of RuCl_2(κ ~2-P-P′)_2

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Novel phospholyl(diphenylphosphino)methane-ruthenium complexes: Unexpected non-assisted cis to trans isomerization of RuCl_2(κ ~2-P-P′)_2

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Using the unsymmetrical P-P′ phospholyl(phosphino)methane ligand, complex cis-RuCl_2(κ~2-P-P′)_2 is easily prepared from RuCl_2(DMSO)_4. The two phosphole-phosphorus atoms lie in the trans position to the two cis-chloro ligands. This complex slowly isomerizes spontaneously at 20 °C to the trans-RuCl_2(κ~2-P-P′)_2 diastereoisomer where the two phosphole moieties are mutually trans, as well as the two chloro ligands and the two Ph2P moieties. DFT calculations show that this non-classical cis-trans isomerisation process requires a 3 kcal mol-1 energy and involves the decoordination of a phosphole arm.

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《Dalton transactions: An international journal of inorganic chemistry》 |2013年第1期|75-81|共7页
作者
Nguyen D.H.; Daran J.-C.; Mallet-Ladeira S.Davin T.Maron L.Urrutigo?ty M.Kalck P.Gouygou M.;
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作者单位

CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, F-31077 Toulouse, France;

Universite de Toulouse, UPS, LCC, F-31077 Toulouse, France;

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中图分类化学;
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Novel phospholyl(diphenylphosphino)methane-ruthenium complexes: Unexpected non-assisted cis to trans isomerization of RuCl_2(κ ~2-P-P′)_2

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