Four novel linear trinuclear assemblies containing bridging triazole ligands. Crystal structure,magnetic, semiconducting and fluorescent properties |
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| Institution: | 1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China;2. Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Republic of Korea;1. Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, P.O. Box 15875-441, Tehran, Iran;2. Department of Organic Colorants, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran;3. Center of Excellence for Color Science and Technology, Tehran, Iran;1. Applied Science College, Harbin University of Science and Technology, Harbin 150080, China;2. School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China;3. Department of the Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China;1. Key Laboratory for Molecular Enzymology & Engineering, The Ministry of Education, Jilin University, ChangChun 130012, PR China;2. School of Life Science, Jilin University, ChangChun 130012, PR China |
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| Abstract: | Four homotrinuclear linear coordination compounds with bridging ligand of (m-phenol)-1,2,4-triazole, Mn3(L)6(H2O)6](ClO4)6 (1), Ni3(L)6(H2O)6](BF4)6·4DMF (2), Cd3(L)6(H2O)6](ClO4)6· 2H2O·2DMF·2EtOH (3), Zn3(L)8(H2O)4](BF4)4(SiF6)·2EtOH·12H2O (4), have been synthesized and structurally determined. The structures consist of three metal ions in linear arrangements, linked to each other by two pairs of three N1, N2 bridging triazole ligands. The negative value of J suggests that antiferromagnetic interaction exists in 1. Green fluorescence of 2 and 4 with emissions at 518 nm for 2 and 524 for 4 is possibly assigned to LMCT. The energy gaps of the compounds 2 and 4 are 1.82 and 1.97 eV, respectively, which suggests that the two materials behave as semiconductors. |
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