Investigations into the syntheses and structures of clusters of the MoOREO32− systems (E = P and As)
作者:Yuan-Da Chang、Jon Zubieta
DOI:10.1016/0020-1693(95)04810-3
日期:1996.4
The chemistry of the MoOREO32− sysems (E = P, As is remarkably diverse, exhibiting influences of the Mo oxidation state, solvent, organic substituents and reaction conditions of temperature, pressure and stoichiometry. Clusters exhibiting molybdenum nuclearities of two, four, five and six are common, as are species derived through both ligation to the Mo site and ligand-based transformations. Thus
所述MoOREO的化学3个2- sysems(E = P,由于是非常多样化的,表现出的温度,压力和化学计量的莫氧化态,溶剂的影响,有机取代基和反应条件。表现出钼nuclearities集群共有两个,四个,五个和六个,以及通过连接至Mo位点和基于配体的转化而衍生的物种,因此,Mo(VI)起始原料[MoO 2(acac)2 ]与适当的(REO 3 H 2)或R'(PO 3 H 2)2提供了一系列Mo(VI)簇,具有基于Mo-八面体和配体四面体的边角共享的环状结构。相反,当在合成中使用MoCl 5时,观察到多种还原和混合的价态簇,并且金属介导的配体转化也很常见。晶体数据:(Et 3 NH)4 [Mo 4 O 10(C 6 H 5 PO 3)4 ]·2CH 3 CN(1):PI,a = 11.975(2),b = 12.442(2),c = 13.265(3),Å,a = 81.87(3),β=