Synthesis and Structure of E-2-(2,4,6-tri tert butylphenylphosphinyl)-2-〔N-(tert-butyldimethylsilyl)-N-(p-chrolophenyl)〕amino-1-(2,4,6-tri tert-butyl-phenyl)phosphacthylene

作     者：ZHANG Li Xin PANG Zhen * ZHOU Xi Geng CAI Rui Fang HUANG Zu En (Department of Chemistry, Fudan University, Shanghai 200433) SUN Jie (Shanghai Institute of Organic Chemistry, the Chinese Academy of Sciences,Shanghai 200032) 

作者机构：Department of Chemistry Fudan University Shanghai 200433 Shanghai Institute of Organic Chemistry the Chinese Academy of Sciences Shanghai 200032 

出 版 物：《Chinese Journal of Structural Chemistry》 (结构化学(英文版))

年 卷 期：2000年第2期

页      面：86-90页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Project 2 97710 0 8was supported by the NNSF of China.This project was also partially supported by Laboratory of Organometallic 

主　　题：organophosphine phosphatheylene crystal structure 

摘      要：The title compound E 2 (2,4,6 tri tert butylphenylphosphinyl) 2 〔 N (ter t butyldimethylsilyl) N (p chrolophenyl)〕amino 1 (2,4,6 tri tert butyl phenyl)phosphacthylene(C 49 H 78 NClP 2Si, M r =806.65) was synthesized and characterized by X ray diffraction analysis. The crystal is monoclinic, space group P2 1/n with a=10.319(3), b=23.309(5), c=21.41(1) , β=99.64(5)°, V=5078(3) 3, Z=4, D c =1.05g/cm 3, F(000)=1760, μ =1.92cm -1 . Due to the steric hindrance from substituents around phosphaethylene, the P=C bond length is significantly longer than those observed in its analogues. The values of the three bond angles involved in the sp 2 hybridized carbon atom (C(1)) of the phosphaethylene are 133.4, 115.1 and 111.4° respectively, deviating significantly from the ideal value of 120°. In addition, although 5 sp 2 hybridized atoms (C(2), P(1), C(1), N and C(44)) are sequentially bonded in this molecule, no interaction is observed among the remaining pz orbits of these atoms on the string.