Aiming at construction of robust molecular architectures having an active center surrounded by stable walls, a box-shaped cobalt(II)–rhodium(III) pentaporphyrin [Co(tpyp)][Rh(tpp)Cl]4 (2) (tpyp = 5,10,15,20-tetrapyridylporphyrinato dianion, tpp = 5,10,15,20-tetraphenylporphyrinato dianion) was newly synthesized via coordination bonds. The cobalt(II) center of the complex 2 reacts reversibly with O2 to give a corresponding dioxygen complex of [Co(tpyp)(py)(O2)][Rh(tpp)Cl]4 (2-(py)(O2)) at low temperatures in dichloromethane-containing pyridine.
为了构建具有被稳定壁包围的活性中心的稳健分子结构,盒形
钴(II)-
铑(III)五
卟啉[Co(tpyp)][Rh(tpp)Cl]4 (2) (tpyp = 5,10,15,20-四
吡啶基
卟啉二阴离子, tpp = 5,10,15,20-
四苯基卟啉二价阴离子)是通过配位键新合成的。配合物2的
钴(II)中心与O2发生可逆反应,得到相应的双氧配合物[Co(tpyp)(py)(O2)][Rh(tpp)Cl]4(2-(py)(O2) )在低温下在含
二氯甲烷的
吡啶中。