Metal-organodiphosphonate chemistry: Hydrothermal syntheses and structures of Zn(II) and Cd(II) coordination polymers with xylyldiphosphonate ligands

Autor: Tiffany M. Smith, Kathryn A. Perrin, Jon Zubieta, Diona Symester, Bruce S. Hudson
Rok vydání: 2014
Předmět:
Zdroj: Inorganica Chimica Acta. 411:172-187
ISSN: 0020-1693
DOI: 10.1016/j.ica.2013.12.003
Popis: Hydrothermal reactions of zinc(II) acetate dihydrate or cadmium(II) nitrate tetrahydrate with xylyldiphosphonic acid isomers in the presence of an organonitrogen chelating ancillary ligand provided a series of materials of the (M(II)-organonitrogen chelate)/xylyldiphosphonate family. One-dimensional structures were observed for [Zn(H2O)(bpy)(1,2-HO3PC8H8PO3H)] (1), [Zn(bpy)(1,3-HO3PC8H8PO3H)]·H2O (2·H2O), [M(o-phen)(1,3-HO3PC8H8PO3H)] (M = Zn (5·H2O), M = Cd (11), and [Zn(tpyprz)(1,2-HO3PC8H8PO3H)] (7), while the phases [M(bpy)2(1,4-H2O3PC8H8PO3H2)(1,4-HO3PC8H8PO3H)] (M = Zn (3) and Cd(9)) exhibited virtual layered structures constructed from { M ( bpy ) 2 ( 1 , 4 - H 2 O 3 PC 8 H 8 PO 3 H 2 ) } n 2 n + chain hydrogen-bonded to the {HO3PC8H8PO3H}2- charge compensating anions. The two-dimensional structures are represented by [M(o-phen)(1,2-HO3PC8H8PO3H)] (M = Zn (4) and Cd (10)) and [Cd(bpy)(1,3-HO3PC8H8PO3H)] (8). Expansion into three-dimensions occurs only with the spatially extended 1,4-xylyldiphosphonate ligand in [Zn4(o-phen)4(1,4-HO3PC8H8PO3)2(1,4-HO3PC8H8PO3H)]·3H2O (6·3H2O) and [Cd(o-phen)(1,4-HO3PC8H8PO3H)] (12).
Databáze: OpenAIRE