Syntheses, characterizations and crystal structures of two lead(II) phosphonate-sulfonate hybrid materials

摘要

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, Pb-3[L-1][BTS][H2O] (.) H2O 1 and Pb-2[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 P (1) over bar with a = 9.9148(4) Angstrom, b = 10.4382(4) Angstrom, c = 10.6926(2) Angstrom, alpha = 96.495(2)degrees, beta = 110.599(2)degrees, gamma = 98.433(2)degrees, V = 1008.31(6) Angstrom(3), and Z = 2. The structure of compound 1 features a 3D network built from the interconnection of hexanuclear Pb-6(L-1)(2) units and 1D double chains of lead(II) carboxylate-sulfonate. Compound 2 crystallizes in the monoclinic space group P2(1)/c with a = 9.5403(7) Angstrom, b = 11.6170(8) Angstrom, c = 19.7351(15) Angstrom, beta = 97.918(2)degrees, V = 2166.4(3) Angstrom(3), 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. (C) 2004 Elsevier Inc. All rights reserved.