The tacticity of polymers is mainly influenced by the polarity of substituent group of vinyl monomer.

作者认为影响聚物等规度的因是取代基的极效应。

These clusters show different fluxional behaviour and ligands according to various substituent around the metals of osmium.

根据羰基配体取代基的不同,该类簇物中小分子的移动种类及方式也有所不同。

It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.

坚牢度和光谱,现磺酰胺基和在它的氮原子上的取代基会影响该类染料的能。

The aurone compounds are generally on one plane ,and they have a bigger conjugate system .The inducement of hydroxyl substituents has little influence on their own geometries .

橙酮类化物分子共面较强,为较大的共轭体系,取代羟基的接入,对橙酮类化物共面影响不大。