Hydrothermal syntheses and characterization of two novel luminescent Cadmium(II) frameworks: From 1D infinite triple Cd-(trz)-Cd bridges to a rare I2O0 network with 2D Cd–Br–Cd inorganic connectivity

• Published in: Journal of molecular structure 2015-05, Vol.1087, p.97-103
• Main Authors: Liu, Shi Xin, Li, Jian Hui, Wang, You You, Wu, Xiang Xia, Huo, Jian Zhong, Ding, Bin, Wang, Xiu Guang, Zhu, Zhao Zhou, Xia, Jun
• Format: Article
• Language: English
• Subjects: 2D inorganic connectivity; I2O0 type; Photo-luminescent
• ISSN: 0022-2860; 1872-8014
• DOI: 10.1016/j.molstruc.2015.01.024

[Display omitted] •Two novel luminescent Cadmium(II) frameworks have been isolated.•1 contains novel infinite triple Cd-(trz)-Cd bridges.•2 presents a rare I2O0 type framework.•The solid-state photo-luminescent spectra of organic ligand L and 1-2 also have been measured. Using the 4-substituted-1,2,4-triazole derivate ligand 4-p-tolyl-1,2,4-triazole (L), two novel luminescent Cadmium(II) frameworks, namely {[Cd(μ2-L)3]·(NO3)2·L}n (1) and [Cd1.5(μ2-L)(μ2-Br)2(μ3-Br)]n (2) have been isolated under hydrothermal conditions. The structural analysis reveals that 1 presents a one-dimensional (1D) chain structural motif containing novel infinite triple Cd-(trz)-Cd bridges (triply trz-bridged M–M species). While 2 presents a rare I2O0 type framework, in which the infinite 2D Cd–Br–Cd inorganic connectivity with a 4-connected Kagome topology can be observed. The FT-IR, PXRD and thermal stabilities of 1–2 have investigated. The solid-state photo-luminescent spectra of organic ligand L and 1–2 also have been measured indicating strong emission bands.