Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 177, Issue 3, Pages 922-927Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2003.09.030
Keywords
crystal structure; layered compound; lead(II) sulfonates; hydrothermal synthesis; inorganic-organic hybrids
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Reactions of lead(II) acetate with m-aminobenzenesulfonic acid (HL1) and 5-sulfoisophthalic acid (H3L2) afforded two new lead(II) sulfonates, Pb(L-1)(2) 1 and Pb-2(L-2)(mu(3)-OH)(H2O) 2. In compound 1, the lead(II) ion is eight-coordinated by two sulfonate groups bidentately, two sulfonate groups unidentately and two amino groups from six ligands. Each L-1 ligand is tetradentate and bridges with three Pb(II) ions. The interconnection of the Pb(II) ions via bridging sulfonate ligands resulted in <100> and <200> layers. In compound 2, one Pb(II) ion is six-coordinated by a carboxylate group bidentately, by two carboxylate groups unidentately, by a sulfonate oxygen atom and by an OH anion, whereas the other one is six-coordinated by a bidentate chelating carboxylate group, two mu(3)-OH anions, a sulfonate oxygen atom and an aqua ligand. The interconnection of irregular PbO6 polyhedra via carboxylate-sulfonate ligands resulted in the formation of a pillared layered structure with the 2D layer being formed; the lead(II) ions, hydroxyl groups, carboxylate and sulfonate groups and the benzene ring as the pillar agent. (C) 2003 Elsevier Inc. All rights reserved.
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