The first organically templated gallium phosphite-oxalates: Synthesis, structures, and characterizationseer

Three new gallium phosphite-oxalates formula as (C6N2H14)(2)[Ga-2(OH)(2)(C2O4)(2)(HPO3)(2)]center dot 2H(2)O (1), (C6N2H18)(0.5)]Ga(OH)(C2O4)(0.5)(HPO3)] (2), and Ga(C2O4)(0.5)(C3N2H4)(HPO3) (3) have been hydrothermally synthesized by controlling the pH value of the reaction system. Compound 1 possesses a one-dimensional ladder-like chain structure, in which the C2O42- anion is coordinated to one Ga center and acts as mono-bidentate ligand. In 2 and 3, the C2O42- anions serve as bis-bidentates ligands bridging between two Ga atoms to form the two-dimensional layered structures. Furthermore, compound 3 displays a neutral layered network, which is decorated by the directly coordinated organic ligand. (C) 2010 Elsevier Masson SAS. All rights reserved.