Cobalt(III) complexes of unsaturated carboxylic acids: synthesis, characterization, and photochemical studies in aqueous medium
作者:Kandasamy Jothivenkatachalam、Singaravelu Chandra Mohan、Paramasivan Natarajan
DOI:10.1007/s11164-012-0850-0
日期:2013.9
Cobalt(III) ammine complexes coordinated to carboxylic acids are classic examples showing photoredox reactions originating from the ligand to metal charge transfer excited states. Cobalt(III) pentaammine complexes coordinated to unsaturated carboxylic acids as ligands were synthesized and characterized by spectroscopic methods. The photolysis of these complexes produces a carboxylate free radical.
与羧酸配位的钴(III)胺配合物是经典实例,显示出光氧化还原反应源自配体到金属电荷转移的激发态。合成了以不饱和羧酸为配体配位的五胺合钴(III)配合物,并通过光谱法对其进行了表征。这些配合物的光解产生羧酸根自由基。该自由基进行进一步转化以形成有机光产物。用光谱方法表征有机光产物。详细检查了有机光产物分解产物的性质。还确定了量子产率。光化学反应具有从不饱和酸的脱羧反应产生新化合物的潜力,这显示出有趣的反应途径。