Preparation and characterization of six-coordinate titanium(IV) monothiocarbamate complexes. X-ray crystal structure of Dichlorobis(N,N-dimethylcarbamothioato-O,S)titanium(IV)
作者:Stephen L. Hawthorne、Heikyung Chun、Robert C. Fay
DOI:10.1016/j.ica.2018.11.017
日期:2019.2
Abstract Six-coordinate titanium(IV) N,N-dialkylmonothiocarbamate complexes Ti(R2mtc)2Cl2 (R = Me, Et, i-Pr, or i-Bu) have been prepared in excellent yield by reaction of titanium(IV) chloride with stoichiometric amounts of sodium N,N-dialkylmonothiocarbamates in dichloromethane or benzene. The complexes were characterized by conductance measurements and by infrared and 1H NMR spectroscopy. The x-ray
摘要通过氯化钛(IV)与四氯化钛的反应,以优异的收率制备了六配位的N,N-二烷基单硫代氨基甲酸酯钛(IV)配合物Ti(R2mtc)2Cl2(R = Me,Et,i-Pr或i-Bu)。 N,N-二烷基单硫代氨基甲酸钠在二氯甲烷或苯中的化学计算量。通过电导测量以及红外和1H NMR光谱对络合物进行表征。为了确定硫原子的位置,需要确定Ti(Me2mtc)2Cl2的X射线晶体结构,硫原子通常在单硫代氨基甲酸酯和单硫代-β-二酮复合物中是顺式的。Ti(Me2mtc)2Cl2具有扭曲的八面体结构,其中Ti(IV)原子与两个顺式Cl原子和两个平面的二齿单硫代氨基甲酸酯配体键合。该配合物(意外地)以C2立体异构体的形式存在,该C2立体异构体的反位具有S原子。