高等学校化学研究 ›› 1988, Vol. 4 ›› Issue (2): 85-90.
Yang Huixing, Chen Yu, He Hong
Yang Huixing, Chen Yu, He Hong
摘要: The reaction kinetics between MoO2(S2CNEt2)2 and triphenylphos-phine (PPh3) were studied in various organic solvents with the aid of the stopped-flow technique. The linear correlations were found for rate constants or activation energy versus the function of refractive index (n2- 1)/(2n2 + 1). It was also found that pre-factor increases with the descent of ( n2 - l)/(2n2 - 1) slightly.One step mechanism which supposes the lone pair of electrons on P atom of triphenylphosphine enters directly into the Ⅱ* antibonding orbital, which makes the Mo= O bond broken, is suggested.