Synthesis, structure, fluorescent and magnetic properties of a series of coordination polymers based on a long and flexible bis-triazole ligand
2012; Royal Society of Chemistry; Volume: 14; Issue: 8 Linguagem: Inglês
10.1039/c2ce06290a
ISSN1466-8033
AutoresNan Wang, Yue-Chao Feng, Wei Shi, Bin Zhao, Peng Cheng, Dai‐Zheng Liao, Shi‐Ping Yan,
Tópico(s)Metal complexes synthesis and properties
ResumoUsing the long and flexible bis(4-(4H-1,2,4-triazol-4-yl)phenyl)methane (BTPM) as a ligand, six novel coordination polymers have been synthesized under hydrothermal conditions. {[Zn(BTPM)(HCOO)](NO3)·2.25H2O}n (1) and {[Cd(BTPM)(HCOO)](NO3)·H2O}n (2) exhibit 2D bi-wave layers with one dimensional microchannels of 9 × 9 Å2, which can form 3D supramolecular structures by intermolecular hydrogen bonds. Both {[Zn2(BTPM)3(H2O)4](NO3)4·H2O}n (3) and {[Cd2(BTPM)3(H2O)4](NO3)4·3.5H2O}n (4) are composed of multiple pairs of interpenetrating (4,4) sheets. {[Cu8(μ4–O)(μ2–H2O)2(BTPM)12](ClO4)14·4H2O}n (5) and {[Co3(BTPM)3(H2O)6](NO3)6·7H2O}n (6) are 3D interpenetrating frameworks. In complex 5, a rare square planar tetra-coordinate oxygen (ptO) and two different tetranuclear copper(II) clusters, [Cu4(μ2–H2O)2N20] and [Cu4(μ4–O)N20], have been observed. Complex 6 shows a 6-connected topology based on linear trinuclear clusters. The fluorescent properties of 1–4, as well as the magnetic properties of 5 and 6 are studied.
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