A series of functionalized analogues of 1,4,7-trithiacyclononane has been synthesized and the effects of functionalization on their co-ordination chemistry investigated. The substituents were introduced via substituted 1,2-dibromopropanes, by cyclization with 3-thiapentane-1,5-dithiolate in the form of its molybdenum complex [Mo(CO)3(SCH2CH2SCH2CH2S)]2–. The functionalized macrocycles were then displaced
合成了一系列的1,4,7-三
硫代
环壬烷官能化类似物,并研究了官能化对其配位
化学的影响。取代基通过取代的
1,2-二溴丙烷,以3-噻
戊烷-1,5-二
硫代酸酯形式以其
钼配合物[Mo(CO)3(SCH 2 CH 2 SCH 2 CH 2 S)] 2环化引入。–。然后通过额外的3-噻
戊烷-1,5-二
硫代
硫酸盐将官能化的大环化合物从
金属中置换出来。一系列配合物[ML 2 ] n +(M = Ag,Hg,Cu,Ni,Co或Fe; L = 2-甲基-1,4,7-三
硫代
环壬烷,最简单的新
配体)被制备。光谱和电
化学研究表明,取代基对环构象偏好的任何影响均未在络合物的稳定性或电
化学性质中体现出来。分子力学计算表明,单个取代不会引起构象偏好的改变。尝试合成具有两个邻位甲基的类似物只能得到聚合产物。