Wide-Bite-Angle Diphosphinines: Design, Synthesis, and Coordination Properties
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- 作者：Christian Mü ; ller ; Zoraida Freixa ; Martin Lutz ; Anthony L. Spek ; Dieter Vogt ; Piet W. N. M. van Leeuwen
- 刊名：Organometallics
- 出版年：2008
- 出版时间：March 10, 2008
- 年：2008
- 卷：27
- 期：5
- 页码：834 - 838
- 全文大小：241K
- 年卷期：v.27,no.5(March 10, 2008)
- ISSN：1520-6041
文摘
A wide-bite-angle diphosphinine ligand has been designed and synthesized, which exhibits structural features for a preferred formation of trans complexes. Due to the linear orientation of the lone-pair electrons of the phosphorus donors in combination with an appropriate P−P distance, trans coordination toward a Rh center was observed and the corresponding LRh(CO)I complex could be characterized crystallographically. Although typical reactivities usually observed for trans complexes were found, reaction of the diphosphinine with the cis-enforcing precursor [Rh(nbd)2]BF4 did result in the formation of several species at low temperature, to which cis-structures were attributed.