Syntheses, Crystal Structures and Properties of Two Lanthanide Selenite-carboxylate Compounds |
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| Authors: | KONG De-Nian XIE Zai-Lai LI Jian-Rong FENG Mei-Ling HUANG Xiao-Ying |
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| Institution: | State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, China |
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| Abstract: | Two lanthanide selenite-carboxylate (LSC) compounds, namely, Ln_8(SeO_3) _4(2,6-pdc) _8(H_2O) _(10)]·2H_2O (Ln = Pr 1, Sm 2; 2,6-pdcH_2 = pyridine-2,6-dicarboxylic acid) have been hydro-thermally synthesized and structurally characterized. Both compounds possess two-dimensional layer structures constructed by Ln_8(SeO_3) _4(2,6-pdc) _8(H_2O) _(10) clusters connected to each other via bridging carboxylate groups. The structures are further extended into three-dimensional architectures through extensive inter-layer H-bonding between coordinated water molecules and carboxylate groups. The luminescent properties and thermal stability of both compounds have been investigated. |
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| Keywords: | lanthanide selenite-carboxylate (LSC) crystal structure photoluminescence |
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