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Title: Hydrothermal syntheses, structures and characterizations of two luminescent cadmium(II) complexes with p-xylenediphosphonic acid and N-donor ligands

Journal Article · · Journal of Solid State Chemistry
OSTI ID:21612910
; ;  [1]
  1. Department of Chemistry, Fuzhou University, Fuzhou 350002 (China)

Two novel cadmium diphosphonates [Cd(cis-H{sub 4}BDPP)(2,2 Prime -bipy){sub 2}]{center_dot}(trans-H{sub 2}BDPP)]{sub n} (1) and [Cd(trans-H{sub 2}BDPP)(phen)]{sub n} (2) (H{sub 4}BDPP=p-xylenediphosphonic acid, phen=1,10-phenanthroline, 2,2 Prime -bipy=2,2 Prime -bipyridine) were hydrothermally synthesized from p-xylenediphosphonic acid and CdSO{sub 4}{center_dot}3H{sub 2}O with phen or 2,2 Prime -bipy as second ligand components and characterized by means of elemental analyses, IR, TG analysis, luminescence spectroscopy and single crystal X-ray diffraction. Compound 1 consists of a novel one-dimensional (1D) sinusoidal [Cd(cis-H{sub 4}BDPP)(2,2 Prime -bipy){sub 2}] chains and trans-H{sub 2}BDPP anions. Compound 2 possesses a three-dimensional architecture built from double zigzag -Cd-O-P-O-Cd- chains pillared by trans-p-xylylenediphosphonate ligands from four different directions. There are hexagonal channels running along the c-axis and the coordinated phen ligands suspend in the hexagonal channels. The results indicate that p-xylenediphosphonic acid can adopt varied coordination modes and conformations in the formation of the complexes and the influence of the N-donor ligands on the structure of the complexes is discussed. - Graphical abstract: Two new cadmium diphosphonates were obtained by using two different auxiliary ligands. The influence of the N-donor ligands on the structure of the complexes is discussed. Highlights: Black-Right-Pointing-Pointer The first example of cadmium(II)-p-xylenediphosphonates templated by second ligand. Black-Right-Pointing-Pointer The role of size of the auxiliary ligand on the structure of cadmium p-xylenediphosphonates. Black-Right-Pointing-Pointer The cis and trans configurations of p-xylenediphosphonates exist in the same crystal structure. Black-Right-Pointing-Pointer Three-dimensional 4-connected framework with PtS network topology.

OSTI ID:
21612910
Journal Information:
Journal of Solid State Chemistry, Vol. 186; Other Information: DOI: 10.1016/j.jssc.2011.11.043; PII: S0022-4596(11)00649-9; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
Country of Publication:
United States
Language:
English