First NIR luminescent polymeric high-nuclearity Cd–Ln nanoclusters from a long-chain Schiff base ligand†
Abstract
Two classes of Cd–Ln nanoclusters [Ln6Cd22Cl14(OH)2L10(OAc)26]n (Ln = La (1) and Nd (2)), and [Yb6Cd18Cl6(OH)2L9(OAc)28] (3) were prepared using a long-chain Schiff base ligand. 1 and 2 exhibit unusual 1-D coordination polymeric structures built by 28-metal drum-like units, while 3 has a 0-D 24-metal nano-drum-like architecture. Their NIR luminescence properties were investigated.