THE FIRST UNAMBIGUOUS CHARACTERIZATION OF A NEUTRAL PHOSPHORUS YLIDE-LITHIUM COMPLES - ISOLATION, STRUCTURE, AND AB-INITIO INVESTIGATIONS OF [(PHCH(2))(2)NLI.CH(2)PPH(3)](2)

被引：40

作者：

ARMSTRONG, DR

DAVIDSON, MG

MONCRIEFF, D

机构：

[1] UNIV CAMBRIDGE,CHEM LAB,CAMBRIDGE CB2 1EW,ENGLAND

[2] UNIV STRATHCLYDE,DEPT PURE & APPL CHEM,GLASGOW G1 1LX,LANARK,SCOTLAND

[3] FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST,TALLAHASSEE,FL 32306

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1995年 / 34卷 / 04期

关键词：

AB INITIO CALCULATIONS; ALKALI METAL COMPOUNDS; AMIDES; PHOSPHORUS YLIDES;

D O I：

10.1002/anie.199504781

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A four‐membered ring of two lithium and two nitrogen atoms is in the central unit of the dimer in the title (1), a complex between an alkali metal and a neutral phosphorus ylide. Surprisingly, this is the first time that such a model complex for the generation of ylides from phosphonium salts and alkali metal bases has been characterized in the solid state. The structure in solution was also determined, and the complexation energies for this and other model complexes were estimated by ab initio calculations. (Formula Presented.) Copyright © 1995 by VCH Verlagsgesellschaft mbH, Germany

引用

页码：478 / 481

页数：4

共 30 条

[1] ISOLATION, STRUCTURE AND MO CALCULATIONAL INVESTIGATIONS OF A HIGHLY STABLE, HYDROGEN-BONDED PRIMARY AMINE PHOSPHINE OXIDE ADDUCT, 2-AMINOBENZOTHIAZOLE HMPA, C6H4SC(=N)NH2.O=P(NME2)3 - A POSSIBLE MODEL TO EXPLAIN THE CARCINOGENICITY OF HMPA (HMPA = HEXAMETHYLPHOSPHORAMIDE) [J].