Ng, D; Chopra, P; Wategaonkar, S; Fujii, A; ,; Zhai Li-Jun; Gao Ling-Ling; Zhang Jie; Jia Jiao-Jiao; Niu Yu-Lan; Hu Tuo-Ping; ,
Three novel complexes, namely {[La(tapipa)(4,4'-bibp)center dot(H2O)(2)]center dot H2O](n) (1), {[La-(tapip a)(H2O)(4)(OH)]center dot 3H(2)O}(n) (2), [Co(tapipa)(1,4-bbib)](n) (3) (tapipa = 5-(3-(tetrazo-5-yl)phenyl) isophthalic acid, 4,4'-bibp = 4,4'-bis(imidazolyl)biphenyl, and 1,4-bbib = 1,4-bis(benzimidazo-1-ly) benzene) have been synthesized under solvothermal conditions and characterized by PXRD, IR, TGA, and so on. Complex 1 presents a 2D layer structure, which is finally packed into a 3D supramolecular structure by means of hydrogen bonds; complexes 2 and 3 exhibit 1D chains and 2D wavy-type structures, respectively, which are expanded into 3D supramolecular structures through hydrogen bonds and pi-pi-interactions. Furthermore, the luminescence properties of complex 1 and the variable-temperature magnetic susceptibilities of 3 were investigated. Complex 1 has highly selective sensing for Fe3+ and Cr2O72- ions.