Synthesis,crystal, luminescent properties and electronic structures of two copper(I) halide polymers based on Cu4I4 cubane tetramers |
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| Authors: | Xiaochuan Chai Shuai Zhang Yiping Chen Yanqiong Sun Hanhui Zhang Xianglan Xu |
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| Affiliation: | 1. Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, PR China;2. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China |
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| Abstract: | Two novel coordination polymers Cu4I4(en)2]n 1 and Cu4I4(pn)2]n 2 (en = 1,2-diaminoethane and pn = 1,3-diaminopropane) were prepared by hydrothermal methods and determined by single-crystal X-ray diffraction analysis. Compound 1 possesses a 3D zeolite-like architecture with infinite intersected channels, constructing from cubane Cu4I4 tetramers, which is simplified into a twofold interpenetrating dia network. Compound 2 with the similar Cu4I4 cores, features a 2D layer with parallelogram-shaped channels along the b axis, showing a uninodal sql net. Both exhibit luminescent emission bands at about 600 nm at room temperature when excited at 350 and 370 nm, respectively. Furthermore, thermogravimetric analyses, optical diffuse reflectance spectroscopy, and the theoretical calculations were discussed. |
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