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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Hydrido-Silyl-Komplexe, IV [1]. Strukturelle Änderungen in Hydrido-Silyl-Komplexen infolge Si-H-Wechselwirkung; Strukturvergleich von (π-CH3C5H4)(CO)2Mn(H)SiCl3 und trans-(π-CH3C5H4)(CO)2Mn(SiCl3)2 / Hydrido Silyl Complexes, IV [1]. Structural Changes in Hydrido Silyl Complexes Due to Si-H Interaction; Comparison of the Structures of (π-CH3C5H4)(CO)2Mn(H)SiCl3 and trans-(π-CH3C5H4)(CO)2Mn(SiCl3)2

  • Ulrich Schubert , Klaus Ackermann and Gertraud Kraft

Abstract

The main difference between the structures of MeCp(CO)2Mn(H)SiCl3 (1) and MeCp(CO)2Mn(SiCl3)2 (2) is that in 1 the SiCl3 ligand is tilted relative to the Mn-Si vector, due to Mn-H-Si three-center two-electron bonding. Mn-Si: 225.4(1) in 1, 232.0(2) pm in 2. Comparison of the structures of MeCp(CO)2Mn(H)SiR3 complexes shows that the Mn-Si distance and the tilt angle of the SiR3 group increases as Si-H interaction increases. A stereochemical pathway of the oxidative addition of HSiR3 to the CpMn(CO)3 fragment is suggested.

Received: 1983-5-17
Published Online: 2014-6-2
Published in Print: 1983-11-1

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