Synthesis, structure and optical properties of new organic-inorganic haloplumbates complexes (C5H10N3)PbX4 (X=Br, Cl), (C2H2N4)PbBr3 |
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Authors: | Yinyan Li Cuikun Lin Guoli Zheng Jun Lin |
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Affiliation: | a Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China b China Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract: | Layered organic-inorganic composite materials (C5H10N3)PbX4 (X=Br 1, Cl 2) containing histaminium dications were grown via a solution-cooling process, and their structure and optical properties were determined. The organic ligand-histaminium introduced into the corner-sharing octahedra of the ‘PbX4-layer’ contains both primary ammonium and imidazolium different from the traditionally primary amine found in this system. As comparison, another analogous amine of 3-amino-1,2,4-triazol was used as ligand to coordinate with PbBr2 in acid solution. A novel complex (C2H2N4)PbBr3 (3) was obtained with zigzag PbBr2 chains different from the PbX4 layer in compound as 1 and 2. The hybrid (C5H10N3)PbX4 show exciton absorption at 339 nm for X=Cl and 419 nm for X=Br with the corresponding emission at 360 and 436 nm, respectively. The different PbBr2 chain structure of compound 3 does not show photoluminescence. |
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Keywords: | Layer structures Haloplumbates Histaminium Imidazolium |
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