An antiaromatic porphyrin complex:: Tetraphenylporphyrinato(silicon)(L)2 (L = THF or pyridine)

被引：128

作者：

Cissell, JA

Vaid, TP ^{[1
]}

Rheingold, AL

机构：

[1] Washington Univ, Ctr Mat Innovat, St Louis, MO 63130 USA

[2] Washington Univ, Dept Chem, St Louis, MO 63130 USA

[3] Univ Calif San Diego, Dept Chem, La Jolla, CA 92093 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 35期

关键词：

D O I：

10.1021/ja0544713

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Treatment of Si(TPP)Cl2 (TPP = tetraphenylporphyrinato) with 2 equiv of Na/Hg in THF yields the reduced porphyrin complex, Si(TPP)(THF)2, in which the porphyrin ring system has an oxidation state of 4- and the complex is antiaromatic. Single-crystal X-ray diffraction reveals that Si(TPP)(THF)2 is highly ruffled and exhibits a unique C-C bond length alternation around its periphery. In addition, experimental 1H and 29Si NMR chemical shifts and NICS (nucleus-independent chemical shift) calculations on a model compound indicate a strong paratropic ring current in Si(TPP). Copyright © 2005 American Chemical Society.

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页码：12212 / 12213

页数：2

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