Construction of Multiporphyrin Arrays Using Ruthenium and Rhodium Coordination to Phosphines

详细信息    查看全文

• 作者：Eugen Stulz ; Sonya M. Scott ; Yiu-Fai Ng ; Andrew D. Bond ; Simon J. Teat ; Scott L. Darling ; Neil Feeder ; and Jeremy K. M. Sanders
• 刊名：Inorganic Chemistry
• 出版年：2003
• 出版时间：October 6, 2003
• 年：2003
• 卷：42
• 期：20
• 页码：6564 - 6574
• 全文大小：293K
• 年卷期：v.42,no.20(October 6, 2003)
• ISSN：1520-510X

文摘

The synthesis of linear multiporphyrin arrays with mono- and bisphosphine-substituted porphyrins as ligand donorsand ruthenium(II) or rhodium(III) porphyrins as ligand acceptors is described. With appropriate amounts of thebuilding blocks mixed, linear dimeric and trimeric arrays have been synthesized and analyzed by ¹H NMR and ³¹PNMR spectroscopy. The Ru/Rh acceptor porphyrins can be located either at the periphery or in the center of thearray. Likewise, the monophosphine porphyrins can be positioned at the periphery, thus allowing a high degree offreedom in the overall composition of the arrays. This way, both donor and acceptor porphyrins can act as chainextenders or terminators. One of the trimeric complexes with two nickel and one ruthenium porphyrin has alsobeen analyzed by X-ray crystallography. Attempts have also been made to synthesize higher order arrays bymixing appropriate amounts of the porphyrins; however, from the NMR data it cannot be concluded if monodispersefive, seven, or nine porphyrin arrays are present or if the solutions are composed of a statistical mixture of smallerand larger arrays.