ChemInform Abstract: Synthesis, Crystal Structure, and Optical Properties of a New Sodium‐Cadmium Carbonate Na₄Cd₃(CO₃)₄(OH)₂.

Abstract

Colorless block-shaped crystals of the title compound are hydrothermally synthesized from mixtures of CdCl 2, Na2CO3, and H2O (autoclave, 220 C, 5 d, 80% yield). Na4Cd3(CO3)4(OH)2 is characterized by single crystal XRD, UV/VIS diffuse reflectance spectroscopy, and DFT calculations. It crystallizes in the monoclinic space group P2 1/c with Z = 2. The structure is formed from [Cd 3(CO3)4(OH)2] layers, which are separated by Na atoms in two different crystallographic sites. The title compound exhibits an optical bandgap of about 5.40 eV with an UV cut-off edge of 230 nm. -(CHEN, J.; LUO*, M.; YE, N.; Z. Anorg. Allg. Chem. 641 (2015) 2, 460-463, http://dx.