A New Metalloligand Powerful in Forming Helical Coordination Polymers

Resumo

A new macrocyclic oxamido carboxylate metalloligand was designed and three heteronuclear coordination polymers of the metalloligand and metal nodes Cu²⁺, Zn²⁺ and Cd²⁺ were prepared. X-ray single crystal analyses (CIF files CCDC nos. 1025722–1025724 for I–III) revealed that multiple favourable features endowed the metalloligand with a strong power to force the metal nodes to generate 1D helical coordination polymers. Thermogravimetric analyses showed that the complexes with Cu²⁺ and Zn²⁺ nodes exhibited moderate thermal stability. The three complexes were also characterized by IR spectra and PXRD.