Abstract
A new heterometallic coordination polymer, namely [Cd3Ca(L-tart)4]n (1 L-tart = L-tartaric acid), has been successfully synthesized and structurally characterized. Single-crystal X-ray analysis reveals that 1 is a complicated three-dimensional (3D) framework, which contains two distinct layers: one containing polyhedrons only based on Cd(II) and the other containing polyhedrons based on Cd(II) and Ca(II).