Comparative structural coordination chemistry of two tricyclic bisamidines
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- 作者：Jingwei Li ; Daniel W. Widlicka ; Kerry Fichter ; David P. Reed ; Gary R. Weisman ; Edward H. Wong ; Antonio DiPasquale ; Katie J. Heroux ; James A. Golen ; Arnold L. Rheingold
- 关键词：Tricyclic bisamidine ; Metal complexes ; Crystal structures
- 刊名：Inorganica Chimica Acta
- 出版年：2010
- 出版时间：15 December 2010
- 年：2010
- 卷：364
- 期：1
- 页码：185-194
- 全文大小：1018 K
文摘
The tricyclic bisamidines L1 and L2 are designed to be preconstrained so as to present synperiplanar donor sites for metal coordination. Their very different bite angles of 35° and 70° result from the incorporation of two five-membered instead of six-membered rings in their respective backbones. Distinct coordination preferences in a variety of metal complexes have now been confirmed by X-ray structural studies. While L1 afforded monodentate, symmetrical and unsymmetrical chelating as well as bimetallic bridging modes in its complexes, L2 has been found exclusively in a bidentate chelating mode.