Synthesis and characterization of thiosemicarbazone derivatives of 2-ethoxy-3-methoxy-benzaldehyde and their rhenium(I) complexes
作者:Ara Núñez-Montenegro、Rosa Carballo、Ezequiel M. Vázquez-López
DOI:10.1016/j.poly.2008.06.018
日期:2008.9
described as a distorted octahedron. The study of the crystals obtained by slow evaporation of methanol solutions of the adducts 1b and 1c showed the formation of dimer structures based on rhenium(I) thiosemicarbazones [Re2(L2)2(CO)6] (2b) and [Re2(L3)2(CO)6] · 2(CH3OH) (2c) · 2(CH3OH). The thiosemicarbazonate complexes [Re2(L)2(CO)6] (2) were obtained by reaction of the adducts with NaOH in dry methanol
摘要制备了配体(HL1,HL2和HL3),并与它们在氯仿中的fac- [ReX(CO)3(CH3CN)2](X = Br,Cl)反应生成加合物[ReX(CO)3(HL) )]](1a X = Cl,R = H; 1a'X = Br,R = H; 1b X = Cl,R = CH3; 1b'X = Br,R = CH3; 1c X = Cl,R = Ph; 1c'X = Br,R = Ph),收率良好。所有化合物均已通过元素分析,质谱(FAB),IR和1H NMR光谱法进行了表征,并通过X射线衍射阐明了配体的结构。在HL1的情况下,我们尝试了与[ReX(CO)5](X = Br,Cl)在甲苯中的反应,并且通过分离1a'·单晶,也以此方式证明了加合物的形成。 ½C7H8。在1a'中,the原子被硫和偶氮甲碱氮原子配位,形成五元螯合环,以及三个羰基碳和溴原子。所得的配位多面体可以描述为扭曲的八面