Synthesis, characterization, reactivity and computational studies of new rhenium(I) complexes with thiosemicarbazone ligands derived from 4-(methylthio)benzaldehyde
作者:Ara Núñez-Montenegro、Rosa Carballo、José M. Hermida-Ramón、Ezequiel M. Vázquez-López
DOI:10.1016/j.poly.2011.05.033
日期:2011.8
1b′, the rhenium atom is coordinated by the sulphur and the azomethine nitrogen atoms (κS,N3) forming a five-membered chelate ring, as well as three carbonyl and bromide ligands. The resulting coordination polyhedron can be described as a distorted octahedron. The structure of the dimers is based on rhenium(I) thiosemicarbazonates [Re2(L1)2(CO)6] (2a), [Re2(L2)2(CO)6] (2b) and [Re2(L3)2(CO)6] (2c) as
摘要制备了由4-(甲硫基)苯甲醛(R = H,HL1; R = Me,HL2和R = Ph,HL3)衍生的N-硫酰胺基硫半脲,并与fac- [ReX(CO)3(CH3CN) 2](X = Br,Cl)在甲醇中的加成物[ReX(CO)3(HLn)](1a X = Cl,n = 1; 1a'X = Br,n = 1; 1b X = Cl,n = 2; 1b'X = Br,n = 2; 1c X = Cl,n = 3; 1c'X = Br,n = 3),收率良好。所有化合物均已通过元素分析,质谱(ESI),IR和1H NMR光谱法进行了表征。此外,还通过X射线衍射阐明了HL2,HL3,HL3·(CH3)2SO和1b′·H2O的结构。在1b'中,the原子被硫和偶氮甲碱氮原子(κS,N3)配位,形成一个五元螯合环,以及三个羰基和溴化物配体。所得的配位多面体可以描述为扭曲的八面体。二聚体的结构基于r