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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 12
BKCSDE 34(12)
December 20, 2013 

 
Title
Two 3D CdII and ZnII Complexes Based on Flexible Dicarboxylate Ligand and Nitrogen-containing Pillar: Synthesis, Structure, and Luminescent Properties
Author
Liu Liu, Yan-hua Fan, Lan-zhi Wu, Huai-min Zhang, Li-rong Yang*
Keywords
Benzene-1,4-dioxyacetic acid, Isomorphous, Metal-Organic frameworks, Luminescent properties
Abstract
Two 3D isomorphous and isostructural complexes, namely, [Zn(BDOA)(bpy)(H2O)2]n (1) and [Cd(BDOA)- (bpy)(H2O)2]n (2); (BDOA = Benzene-1,4-dioxyacetic acid, bpy = 4,4'-bipyridine) were synthesized under hydrothermal conditions and characterized by means of elemental analyses, thermogravimetric (TG), infrared spectrometry, and single crystal X-ray diffraction. Complexes 1 and 2 crystallize in the triclinic system, space group P-1 and each metal ion in the complexes are six-coordinated with the same coordination environment. In the as-synthesized complexes, BDOA2− anions link central metal ions to form a 1D zigzag chain [-BDOA2− -Zn(Cd)-BDOA2−-Zn(Cd)-]∞, whereas bpy pillars connect metal ions to generate a 1D linear chain [-bpy- Zn(Cd)-bpy-Zn(Cd)-]∞. Both infinite chains are interweaved into 2D grid-like layers which are further constructed into a 3D open framework, where hydrogen bonds play as the bridges between the adjacent 2D layers. Luminescent properties of complex 1 showed selectivity for Hg2+ ion.
Page
3749 - 3754
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