The kinetics of ligand exchange at a Zn^(Ⅱ)center confined in a biomimetic environment is studied.The metal ion is bound to a TMPA unit covalently capping the calix[6]arene core.As such,the system is rigidified in a ...The kinetics of ligand exchange at a Zn^(Ⅱ)center confined in a biomimetic environment is studied.The metal ion is bound to a TMPA unit covalently capping the calix[6]arene core.As such,the system is rigidified in a cone conformation open to the solvent at the large rim.At the small rim,the methyl groups of the anisole units lead to steric crowding,thus defining a small pore leading to the metal center.The exchange of an organic vip ligand(MeCN)for another(EtCN)is studied by^(1)H NMR spectroscopy.展开更多
文摘The kinetics of ligand exchange at a Zn^(Ⅱ)center confined in a biomimetic environment is studied.The metal ion is bound to a TMPA unit covalently capping the calix[6]arene core.As such,the system is rigidified in a cone conformation open to the solvent at the large rim.At the small rim,the methyl groups of the anisole units lead to steric crowding,thus defining a small pore leading to the metal center.The exchange of an organic vip ligand(MeCN)for another(EtCN)is studied by^(1)H NMR spectroscopy.
