Si-H键伸缩振动频率与结构关系的研究  

Studies on the Relationship Between the Si-H Stretching Vibration arid Molecular Structure

作　　者：周秀中[1] 耿伯林 王永泰[1] 徐善生[1] Zhou Xiuzbong;Geng Bolin;Wang Yoajtai;Xu Shansheng(Department of Chemistry,Nankai University,Tianjin)

机构地区：[1]南开大学化学系

出　　处：《高等学校化学学报》1988年第3期234-238,共5页Chemical Journal of Chinese Universities

摘　　要：本文研究了开链及环状硅氢化合物中硅原子上取代基的电子效应和立体效应对Si—H键伸缩振动频率的影响。The relationship between the Si-H stretching vibration and the electronic steric effect of substituents on Si atom was studied for 19 mono-hydrosilanes (9 cyclic and 10 open chain mono-hydrosilanes). The results show that, (1) The Si-H stretching vibration frequency is directly proportional to electronic withdrawing ability of substitucnis on Si atom in monohydrosilanes studied. Two excellent linear relationships between the Si-H stretching vibration frequencies and Hammett substituent constants are obtained. (2) Two excellent linear relationships between the Si-H stretching vibration frequencies and Taft substituent constants in mono-hydrosilanes are also found. (3) A reasonable mell cd of studying he electronic, steric effect of substituents on Si atcrr.s among the cyclic monohydro-tsilanes is proposed.

关 键 词：伸缩振动频率 电子效应 氢化合物 立体效应 硅原子 取代基 Si 

分 类 号：O62[理学—有机化学]