Xu Wei, Ma Liang, Lv Yi-Lei, Ma Si-Yu, Liu Wenlong, Guo Sheng-Ping, Tang Ru-Ling
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, People's Republic of China.
Inorg Chem. 2024 Jan 8;63(1):67-72. doi: 10.1021/acs.inorgchem.3c04154. Epub 2023 Dec 19.
Low-dimensional crystalline materials have attracted much attention due to their special physical and chemical properties. Herein, two new oxalate chlorides, C(NH)Cd(CO)Cl(HO)·HO and BaCd(CO)Cl(HO), were synthesized. C(NH)Cd(CO)Cl(HO)·HO presents the unique {[Cd(CO)Cl(HO)]} chain, while BaCd(CO)Cl(HO) shows a novel {[Cd(CO)Cl]} layer. They showed large measured band gaps, which were 3.76 and 4.53 eV, respectively, and the latter was the largest band gap in the A-M-CO-X (A = Monovalent cationic or alkaline earth metals, X = F, Cl, Br, I) family. They exhibit a large calculated birefringence of 0.075 and 0.096 at 1064 nm, respectively. This study promotes the exploration of synthesizing low-dimensional crystalline materials with balanced overall optical performances by a chemical scissors strategy.
