Synthesis, structure and theoretical investigation into a homoleptic tris(dithiolene) tungsten
作者:Khuzaimah Arifin、Lorna Jeffery Minggu、Wan Ramli Wan Daud、Bohari M. Yamin、Rusli Daik、Mohammad B. Kassim
DOI:10.1016/j.saa.2013.09.069
日期:2014.2
A new homoleptic dithiolene tungsten complex, tris-1,2-bis(3,5-dimethoxyphenyl)-1,2-ethylenodithiolene-S,S′}tungsten, was successfully synthesized via a reaction of the thiophosphate ester and sodium tungstate. The thiophosphate ester was prepared from 3,5-dimethoxybenzaldehyde via benzoin condensation to produce the intermediate 1,2-bis-(3,5-dimethoxyphenyl)-2-hydroxy-ethanone compound, followed
通过硫代磷酸酯和钨酸钠的反应成功地合成了一种新的均相二硫代钨络合物,tris- 1,2-双(3,5-二甲氧基苯基)-1,2-亚乙基二硫代噻吩-S,S'}钨。由3,5-二甲氧基苯甲醛经安息香缩合制备硫代磷酸酯,以产生中间体1,2-双-(3,5-二甲氧基苯基)-2-羟基-乙酮化合物,然后使中间体与五硫化二磷反应。FTIR,UV-Vis光谱,1 H NMR和13 C NMR以及元素分析证实了该产物为三1,2-双-(3,5-二甲氧基苯基)-1,2-乙撑二硫代烯-S,S'}钨C 54 H 54 O 12 S 6的分子式W.产品的晶体采用单斜晶系,其空间群为P 2(1)/ n,其中a = 12.756(2)Å,b = 21.560(3)Å,c = 24.980(4)Å,β = 103.998 (3)°。三个硫酯配体作为二齿螯合物附着在钨上,形成扭曲的八面体几何形状。进行了密度泛函理论计算,