摘要
MoO_2Cl_2-Al(i-Bu)_2OPhCH_3体系的磁化率和紫外-可见光谱测定结果表明,Al-Mo两组份—接触立刻发生化学反应。Al/Mo(mol比)=0.23时,体系磁化率达到极大值,是Mo(V)存在的标志。其光谱吸收带分别是742nm和335nm。Al/Mo>1时,Mo(V)的光谱吸收带渐渐消失。Al/Mo≥2时,体系在室温下就显催化活性。
The interactions between the components in the MoO_2Cl_2-Al(i-Bu)_3OPhCH_3 system has been studied by using magnetic susceptibility and UV-VIS spectrum. The results show that in binary system of Mo-Al the reaction of Mo(Ⅵ)→Mo(Ⅴ) takes place, and the characteristic absorption bands of Mo(V)are at 742nm and 355 nm. In binary system of Mo-Al the maximum value of X_g appears at Al/ Mo=0.23. When Al/Mo>1 the characteristic absorption band at 742 nm vanishes gradually. When Al/Mo≥2 the system has the catalytic activity for the polymerization of butadiene at room temperatures.
出处
《石油化工》
CAS
CSCD
北大核心
1991年第8期530-534,共5页
Petrochemical Technology
基金
国家自然科学基金
