Three Zinc(II) Coordination Polymers Based on Tetrakis(4-pyridyl)cyclobutane and Naphthalenedicarboxylate Linkers: Solvothermal Syntheses, Structures, and Photocatalytic Properties

• Published in: Crystal growth & design 2014-01, Vol.14 (1), p.240-248
• Main Authors: Dai, Ming, Su, Xin-Ran, Wang, Xiao, Wu, Bing, Ren, Zhi-Gang, Zhou, Xuan, Lang, Jian-Ping
• Format: Article
• Language: English
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Electronics; Exact sciences and technology; Growth from solutions; Materials science; Methods of crystal growth; physics of crystal growth; Optoelectronic devices; Physics; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Thermal expansion; thermomechanical effects and density; Thermal properties of condensed matter; Thermal properties of crystalline solids
• ISSN: 1528-7483; 1528-7505
• DOI: 10.1021/cg4014416

Solvothermal reactions of Zn(NO3)2 with tetrakis(4-pyridyl)­cyclobutane (tpcb) and 1,4-naphthalenedicarboxylic acid (1,4-H2ndc) and 2,3-naphthalenedicarboxylic acid (2,3-H2ndc) in different solvents led to the formation of three polydimensional coordination polymers {[Zn2(H2O)­(1,4-ndc)2(tpcb)]} n (1), {[Zn(1,4-ndc)­(tpcb)0.5]} n (2), and {[Zn2(H2O)­(2,3-ndc)2(tpcb)]} n (3). Compounds 1–3 were characterized by elemental analysis, IR, powder X-ray diffraction (PXRD), and single crystal X-ray diffraction. Compound 1 is a three-dimensional (3D) (3,3)-connected net with a (10·122)·(102·12) Schläfli symbol. Compound 2 holds a 2-fold interpenetrating 3D framework with a (42·62·72)·(4·62·73) Schläfli symbol, which shows hexagonal-prism-like one-dimensional channels. Compound 3 shows a two-dimensional (3,8)-connected network. The solid state luminescent, optical, and thermal stability properties of 1–3 at ambient temperature were also investigated. A comparative study on their photocatalytic activity toward the degradation of methyl orange and methyl blue in polluted water was explored. The results provided some interesting insights into solvent effects on the structures of zinc(II) coordination polymers and their photocatalytic applications.