Three inorganic-organic hybrids of bismuth(III) iodide complexes containing substituted 1,2,4-triazole organic components with charaterizations of diffuse reflectance spectra |
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Authors: | Bing Liu Ling Xu Jin-Shun Huang |
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Institution: | a State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China b Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Republic of Korea |
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Abstract: | The reactions of two kinds of substituted 1,2,4-triazoles with BiI3 yielded three inorganic-organic hybrids: HL1]4Bi6I22]·L1]4·4H2O (1) (L1=3-(1,2,4-triazole-4-yl)-1H-1,2,4-triazole); HL2]4Bi6I22]·6H2O (2); HL2]2Bi2I8]·L2]2 (3) (L2=(m-phenol)-1,2,4-triazole). Both 1 and 2 have polynuclear anions of Bi6I22]4- to build up the inorganic layers and substituted 1,2,4-triazoles as the organic layers. Hybrid 3 consists of two BiI5 square pyramids as inorganic layers. There exist hydrogen bondings and I?I interactions in the structures of 1, 2 and 3. Optical absorption spectra of 1, 2 and 3 reveal the presence of sharp optical gaps of 1.77, 1.77 and 2.07 eV, respectively, suggesting that these materials behave as semiconductors. |
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Keywords: | Inorganic-organic hybrids Substituted 1 2 4-triazoles Crystal structure Diffuse reflectance spectra |
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