Two chiral cadmium carboxylate framework isomers generated by spontaneous resolution: synthesis, structures and properties. Issue 2 (17th January 2019)

• Record Type: Journal Article
• Authors: Chen, Yang-Yang; Tan, Chunhong; Song, Li-Ping; Zhou, Juan; Zeng, Qiongyao; Xie, Rui; Wang, Xiao-Feng
• Is Part Of: Journal of coordination chemistry. Volume 72:Issue 2(2019)
• Page Start: 251
• Page End: 261
• Publication Date: 2019-01-17
• Subjects: Cadmium -- chiral coordination polymer -- helix chain -- luminescent -- circular dichroism; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2018.1564285
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: Two three-dimensional (3-D) chiral coordination polymers, [Cd(NDC)(DMF)]n (1L and1D : H2 NDC = 1, 4-naphthalenedicarboxylic acid and DMF = N, N ′-dimethylformamide), have been synthesized by introducing the rigid achiral dicarboxylic acid ligand under solvo-thermal conditions, without chiral template or additives. Both chiral Cd-CPs were characterized by single crystal X-ray crystallography, and structural analysis indicates that1L and1D are enantiomers based on the zigzag [Cd(COO)2 (DMF)]n rod secondary building units, featuring the left- or right-hand 21 Cd-O-C-O-Cd helix chains and left- or right-hand 41 screw [Cd(NDC)]n columns, respectively. The FT-IR, TGA, powder X-ray diffraction and solid-state luminescence of1 have been investigated. It is intriguing that the evidence from the circular dichroism spectroscopies confirms enantiomeric excess in the whole spontaneous resolution crystallization. Graphical Abstract: