Two new luminescent Zn(II) coordination polymers with different interpenetrated motifs

• Published in: Journal of molecular structure Vol. 1099; pp. 49 - 53
• Main Authors: Song, Changying, Liu, Qifeng, Liu, Wei, Cao, Ziqing, Ren, Yuanyuan, Zhou, Qichao, Zhang, Li
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05-11-2015
• Subjects: Luminescence; Solvothermal reaction; Topology; Zn(II) compound; Zn(II) compound; Topology; Solvothermal reaction; Luminescence
• ISSN: 0022-2860; 1872-8014
• DOI: 10.1016/j.molstruc.2015.06.053

Solvothermal reactions of Zn(NO3)2, H2tdc and bib in the presence of different solvents (DMF = N,N’- dimethylformamide or DMA = N,N’- dimethylacetamide) have given rise to two new coordination polymers, namely [Zn2(tdc)2(bib)2]n·2n(H2O) (1) and [Zn(tdc)(bib)0.5(H2O)]n (2) (H2tdc = 2,5-thiophenedicarboxylic acid, bib = 1, 4-bis(imidazolyl)butane). The structures were determined by single crystal X-ray diffraction and characterized by elemental analysis, powder X-ray diffraction and infrared spectroscopy. Compound 1 exhibits a 4-fold interpenetrated dia topological network, and compound 2 features a 8-fold interpenetrated ths topological network. In addition, thermal stabilities and solid state luminescent properties of these two compounds were also investigated.
Presented here are two new Zn(II) coordination polymers, namely [Zn2(tdc)2(bib)2]n·2n(H2O) (1) and [Zn(tdc)(bib)0.5(H2O)]n (2) (H2tdc = 2,5-thiophenedicarboxylic acid, bib = 1, 4-bis(imidazolyl)butane). Compound 1 exhibits a 4-fold interpenetrated dia topological network, and compound 2 features a 8-fold interpenetrated ths topological network. [Display omitted]
•Two new entangled Zn(II) compounds were obtained via changing the reaction solvent molecules.•Compounds 1 and 2 display different interpenetrated motifs.•These two compounds are luminescent.