Syntheses and characterization of inorganic-organic hybrids with 4-(isonicotinamido)phthalate and some divalent metal centers

Four new inorganic-organic hybrid frameworks [Mn(L)(H2O)(2)](n) (1), {[Co(L)(H2O)(3)]center dot 2H(2)O-CH3OH}(n) (2), {[Zn(L)(H2O)]center dot H2O) (3) and [Cd(HL)(2)](n) (4) [H2L = 4-(isonicotinamido)phthalic acid] have been synthesized and characterized by single-crystal X-ray diffraction analysis. Complex 1 has three-dimensional (3D) structure and topology related to SrAl2 (sra) with Schlafli symbol of (4(.)(2)6(3).8). And 2 displays (3,3)-connected two-dimensional (2D) network with (4.8(2)) topology, while 3 exhibits a uninodal (3,3)-connected (6,3) 2D network, which is further linked by N-H center dot center dot center dot O hydrogen bonding interactions to give 3D structure with hms topology and Schlafli symbol of (6(3))(6(9).8). Complex 4 with partial deprotonated HL- ligands also has a 2D network structure. In addition, the magnetic property of 1, nonlinear optical property of 3 and photoluminescence of 3 and 4 were investigated. (C) 2010 Elsevier Ltd. All rights reserved.