(一)引言六氰合钴(Ⅲ)配离子的水合反应,在基态条件下,热力学上是不允许的,其标准自由能变化△G°_(298)=365.2hJ·mol~(-1),且动力学上是惰性的,然而,在光的作用下,却可发生光水合反应,不过配体氰根离子的全水合尚未见有报导。在实验室,我们实现了六个配体离子的光水合,用化学法和分光光度法检测了光水合反应产物[Co(H_2O)_6]~(2+)离子。 (1) Introduction The hydration reaction of cobalt (I) hexacyanocobaltate is not thermodynamically tolerable under the ground state conditions. The standard free energy change △ G ° _ (298) = 365.2 hJ · mol ~ (-1) ), And is kinetics inert, however, under the action of light, but the light hydration reaction, but the ligand cyanohydrate full hydration has not been reported. In the laboratory, we achieved the photolysis of six ligand ions, and detected the hydration reaction product [Co (H_2O) _6] 2+ by chemical and spectrophotometric methods.