Syntheses, structure and magnetic properties of pillared layered diphosphonates: M-2(O3PC6H4PO3)(H2O)(2) (M=Co-II, Ni-II)

摘要

This paper describes the hydrothermal syntheses of two isostructural metal bisphosphonates: M-2(O3PC6H4PO3)(H2O)(2) [M = Co-11 (1), Ni-11 (2)]. Single-crystal structure determination of compound 1 revealed a pillared layered structure in which the phenyl groups connect the inorganic layers of cobalt phosphonate. Crystal data for 1: orthorhombic, space group Pnnm, a = 19.306(5), b = 4.8293(12), c = 5.6390(14) Angstrom,V = 525.7(2) Angstrom(3), Z = 2. Magnetic susceptibility data indicate that antiferromagnetic interactions are mediated in both cases. (C) 2004 Elsevier Inc. All rights reserved.