Structural and Coordination Studies of "Pearl Oysterlike" Porphyrins

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• 作者：Zakaria Halime ; Mohammed Lachkar ; Thierry Roisnel ; Philippe Richard ; Bernard Boitrel
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：August 6, 2007
• 年：2007
• 卷：46
• 期：16
• 页码：6338 - 6346
• 全文大小：399K
• 年卷期：v.46,no.16(August 6, 2007)
• ISSN：1520-510X

文摘

We report the coordination studies of porphyrins with pre-organized but yet flexible straps, each bearing over thecenter of the porphyrin either a 2,2-malonic acid diethyl ester residue or a 2,2-malonic acid residue. The straps areattached to the porphyrin via two adjacent meso positions, 5,10 and 15,20, respectively, and the 2,2-malonic aciddiethyl ester groups are connected to the straps on benzylic carbon atoms. These two structural features allow asignificant flexibility of the straps, as confirmed by the comparison of the X-ray structures of the zinc, nickel, andlead complexes of porphyrin 1. In the latter, the influence of the lone-electron pair of lead is clearly demonstrated.The coordination of bismuth is also reported.