Synthesis and Complexation of “Back-to-Back” Capped Bis-dioxocyclams
作者:Jun Mo Gil、Scott David、Angela L. Reiff、Louis S. Hegedus
DOI:10.1021/ic0502731
日期:2005.8.1
Pyridine-capped 5,12-dioxocyclams were coupled "back-to-back" directly, with one or two interveningphenylgroups, an ethynyl group, or a diazo groupvia Suzuki, Sonogashira, or reductive coupling of the 4-nitropyridine monocyclam. These bis-dioxocyclams linked through extended pi-conjugated systems were complexed to copper(II) and cobalt(III), producing bis-metal complexes which were characterized
A new octadentate cavitand forms a stable dimeric molecular capsule via metal-coordination, creating a large and elaborate three-dimensional cavity in which large aromatic guests are accommodated to form supramolecular complexes.