Binding of carbon dioxide to cobalt and nickel tetra-aza macrocycles
作者:Dorothea A. Gangi、Richard R. Durand
DOI:10.1039/c39860000697
日期:——
voltammetry of cobalt and nickel complexes of the macrocycle 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetra-azacyclotetradeca-4,11-diene in 0.10M tetraethylammonium perchlorate in dimethylsulphoxide in the presence of carbon dioxide shows a strong positive shift of the CoII/I reduction potential, leading to an equilibrium constant of 7 × 104 for CO2 binding, whereas the nickel complex shows a very low affinity
大环化合物5,7,7,12,14,14-六甲基-1,4,8,11-四氮杂环十四碳-4,11-二烯在0.10 M高氯酸四乙铵中的二甲基亚砜的循环伏安法二氧化碳的存在表明Co II / I还原电位有很强的正向移动,从而导致CO 2结合的平衡常数为7×10 4,而镍络合物在两种情况下对CO 2结合的亲和力都非常低。Ni II或Ni I的氧化态。