CRYSTAL-STRUCTURE OF ETA-3-LITHIO-1,3,3-TRIPHENYLPROPYNE-(DIETHYL ETHER)(2) AND [1-LITHIO-1-(2-METHOXYPHENYL)-3,3-DIPHENYLALLENE-DIETHYL ETHER](2) - PROPARGYL-TYPE VERSUS ALLENYL-TYPE STRUCTURES

被引：0

作者：

DEMYANOV, P ^{[1
]}

BOCHE, G ^{[1
]}

MARSCH, M ^{[1
]}

HARMS, K ^{[1
]}

FYODOROVA, G ^{[1
]}

PETROSYAN, V ^{[1
]}

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,D-35032 MARBURG,GERMANY

来源：

LIEBIGS ANNALEN | 1995年 / 03期

关键词：

PROPARGYLLITHIUM VERSUS ALLENYLLITHIUM STRUCTURE; CRYSTAL STRUCTURE; COMPARISON WITH THEORETICAL STRUCTURE;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Crystal structure investigations reveal that eta(3)-lithio-1,3,3-triphenylpropyne-(diethyl ether)(2) [6 .(OEt(2))(2)] is of the propargyl structural type while [1-lithio-1-(2-methoxyphenyl)-3,3-diphenylallene-(diethyl ether)](2) {[7 . OEt(2)](2)} is of the allenyl type. The assignment of the different structural types is mainly based on a comparison of the bond lengths C1-C2 and C2-C3 as well as of the difference Delta C-C of these two bond lengths with the corresponding values of theoretical models of the propargyl and allenyl type. This leads also to a correction of an earlier assigned structural type.

引用

页码：457 / 460

页数：4

共 9 条

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