Stereochemical control of the redox potential of tetracoordinate rhodium complexes

被引：15

作者：

Laporte, C ^{[1
]}

Breher, F ^{[1
]}

Geier, J ^{[1
]}

Harmer, J ^{[1
]}

Schweiger, A ^{[1
]}

Grützmacher, H ^{[1
]}

机构：

[1] ETH Honggerberg, Dept Chem & Appl Biosci, CH-8093 Zurich, Switzerland

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 19期

关键词：

electrochemistry; phosphane ligands; redox chemistry; rhodium; stereochemistry;

D O I：

10.1002/anie.200353027

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An apitite for reduction: The diastereoisomers of the tetrachelating ligand 1,3-bis[(5H-dibenzo[a,d]cyclohepten-5-yl)phenylphosphanyl propane, bis(troppPh)propane, can be used to control the redox potentials of 16-electron rhodium(1) complexes. Whereas the R,S-isomer of the ligand enforces a more planar complex which is difficult to reduce, the R,R(S,S)-isomer favors a tetrahedrally distorted structure which is easily reduced to give a stable rhodium(0) complex (see structure, Rh silver, P yellow, C black, H white).

引用

页码：2567 / 2570

页数：4

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