one relatively weak "skewed pi" interaction. The dimers [Mo(2)(S(2)CNR(2))(6)](OTf)(2) react with a variety of reagents to give monomeric seven-coordinate complexes, including the new cationic molybdenum(IV) complex [Mo(PMe(2)Ph)(S(2)CNEt(2))(3)](OTf), which has been structurally characterized. Kinetic studies of the reaction of [Mo(2)(S(2)CNEt(2))(6)](OTf)(2) with halides indicate the presence of competing
氯化三(三烷基二
硫代
氨基甲酸)
钼(IV)配合物MoCl(S(2)CNR(2))(3)(R = Et,Me)与
三氟甲磺酸银的提取产生抗磁性二聚体配合物[Mo(2)(S( 2)CNR(2))(6)](OTf)(2),收率良好。晶体学上确定的
二乙基二
硫代
氨基甲酸酯络合物的结构表明,该二聚体由两个共享轴向边缘的五边形双锥体组成,并具有指示
金属-
金属键的Mo-Mo间距(2.8462(8)A)。对键的定性分析表明,该键为2阶,由一个正常sigma键和一个相对较弱的“倾斜pi”相互作用组成。二聚体[Mo(2)(S(2)CNR(2)(6)](OTf)(2)与多种试剂反应生成单体七配位配合物,包括新的阳离子
钼(IV)配合物[Mo(PMe(2)Ph)(S(2)CNEt(2))(3)](OTf),在结构上已被表征。[Mo(2)(S(2)CNEt(2)(6)](OTf)(2)与卤化物反应的动力学研究表明,存在竞争