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Syntheses, crystal structures and characterizations of new zinc (II) and lead (II) carboxylate-phosphonates

โœ Scribed by Jun-Ling Song; Jiang-Gao Mao

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
524 KB
Volume
740
Category
Article
ISSN
0022-2860

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โœฆ Synopsis

The syntheses, crystal structures and characterizations of two new divalent metal carboxylate-phosphonates, namely, Zn(

  1. have been reported. Compound 1 features a 1D column structure in which the Zn(II) ions are tetrahedrally coordinated by four phosphonate oxygen atoms from four phosphonate ligands, and neighboring such 1D building blocks are further interconnected via hydrogen bonds into a 3D network. The carboxylate group of H 3 L anion remains noncoordinated. Compound 2 has a 2D layer structure. Pb(II) ion is 7-coordinated by four phosphonate oxygen atoms from four phosphonate ligands and three aqua ligands. The interconnection of Pb(II) ions via bridging H 3 L anions results in a h001i layer. The carboxylate group of the H 3 L anion also remains non-coordinated and is oriented toward the interlayer space. Solid state luminescent spectrum of compound 1 exhibits a strong broad blue fluorescent emission band at 455 nm under excitation at 365 nm at room temperature.

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