First X-ray Structure Determination of a Bismuthio Ylide : 4,4-Dimethyl-2,6-dioxo-1-triphenylbismuthiocyclohexanide

First X-ray Structure Determination of a Bismuthio Ylide : 4,4-Dimethyl-2,6-dioxo-1-triphenylbismuthiocyclohexanide
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硫代铋叶立德的首次 X 射线结构测定:4,4-二甲基-2,6-二氧代-1-三苯基硫代环己烷

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发表时间:
1990
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通讯作者:
T. Ogawa
T. Ogawa
中科院分区:
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文献类型:
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作者:
M. Yasui;T. Kikuchi;F. Iwasaki;Hitomi Suzuki;T. Murafuji;T. Ogawa

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首次对4,4-二甲基-2,6-二氧代-1-三苯基铋硫代环己烷的铋硫代叶立德进行了X射线结构分析。Bi-Cylide键为2.16A,仅比BiCPH单键短0.05-0.06A,表明Bi-Cylide键以C--Bi+或O--CC-Bi+的形式极化,与Ylided碳之间几乎没有双键特征。
The first X-ray structure analysis of a bismuthio ylide has been made for 4,4-dimethyl-2,6-dioxo-1 -triphenylbismuthiocyclohexanide. The Bi–Cylide bond is 2.16 A, only 0.05–0.06 A shorter than the Bi–CPh single bond, revealing that the Bi–Cylide bond is polarized as C––Bi+ or O––CC–Bi+ with little double bond character between the Bi and the ylidic carbon.