Syntheses, characterizations and crystal structures of two lead(II) phosphonate-sulfonate hybrid materials |
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Authors: | Jun-Ling Song |
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Affiliation: | State Key Laboratory of Structure Chemistry, Fujian Institute for Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China |
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Abstract: | Hydrothermal reactions of lead(II) acetate with 5-sulfoisophthalic acid monosodium salt (NaH2BTS) and N-(phosphonomethyl)-N-methylglycine, MeN(CH2CO2H)(CH2PO3H2) (H3L1), or a new aminodiphosphonic acid, 3-Pyridyl-CH2N(CH2PO3H2)2 (H4L2), afforded two novel lead(II) phosphonate-sulfonate hybrids, namely, Pb3[L1][BTS][H2O]·H2O 1 and Pb2[HL3][BTS]·H2O 2 (H2L3=3-Pyridyl-CH2(Me)N(CH2PO3H2)). H2L3 was formed as a result of the decomposition of one phosphonate group in H4L2 during the reaction. Compound 1 crystallizes in the triclinic space group with a=9.9148(4) Å, b=10.4382(4) Å, c=10.6926(2) Å, α=96.495(2)°, β=110.599(2)°, γ=98.433(2)°, V=1008.31(6) Å3, and Z=2. The structure of compound 1 features a 3D network built from the interconnection of hexanuclear Pb6(L1)2 units and 1D double chains of lead(II) carboxylate-sulfonate. Compound 2 crystallizes in the monoclinic space group P21/c with a=9.5403(7) Å, b=11.6170(8) Å, c=19.7351(15) Å, β=97.918(2)°, V=2166.4(3) Å3, and Z=4. Compound 2 has a 3D network structure built by the cross-linkage of 1D double chains of lead(II) phosphonates and 2D layers of lead(II) carboxylate-sulfonate. |
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Keywords: | Metal phosphonates Sulfonates Hydrothermal synthesis Open framework Crystal structures |
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