to synthesize linear or semi-circular chelated mononuclear biscarbene and dinuclear tetracarbene complexes. The electronic properties of the annulated thienylene chelated carbene complexes were investigated by cyclic voltammetry experiments and compared to non-chelated Fischer-type monocarbene complexes. Density functional theory (DFT) calculations were used to assign the redox events and to probe the
两个(
噻吩并[3,2- b ]
噻吩)和三个环
噻吩(二
噻吩并[2,3- b ; 3',2'- d ]
噻吩和双
噻吩并[3,2- b ; 2',3'- d[
噻吩]用作构建基,以合成线性或半圆形的螯合单核双卡宾和双核四卡宾络合物。通过循环伏安法实验研究了
环戊二烯螯合卡宾卡宾配合物的电子性质,并将其与非螯合费歇尔型单卡宾配合物进行了比较。密度泛函理论(DFT)计算被用来分配氧化还原事件,并探测电子离域的程度以及由于间隔而引起的电子(分子内
金属与
金属)通信的可能性。将共轭螯合卡宾络合物中这些电子性质的差异与没有线性共轭途径的螯合卡宾化合物进行了比较。