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Four 3D "brick-wall"-like metal-organic frameworks with a flexible ligand of (S,S,R,R)-1,2,3,4-cyclopentanetetracarboxylic acid: crystal structures, luminescent and magnetic properties.
MedLine Citation:
PMID:  23143650     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To investigate the conformation of cyclopentanetetracarboxylic acid, four new "brick-wall"-like metal-organic frameworks have been synthesized from hydrothermal reactions with different metal salts, (S,S,R,R)-1,2,3,4-cyclopentanetetracarboxylic acid (H(4)cptc) and auxiliary N-donor ligands, namely, Cu(2)(S,S,R,R-cptc)(bpe)(H(2)O)(2)·2H(2)O (), Co(2)(S,S,R,R-cptc)(bpe)(0.5)(H(2)O)(2)·2H(2)O (), Cd(4)(S,S,R,R-cptc)(2)(bpa)(2)(H(2)O)(5)·2H(2)O () and Co(2)(S,S,R,R-cptc)(bpy)(0.5)(H(2)O)(2)·2(H(2)O) () (bpe = 4-(2-(pyridine-4-yl)vinyl)pyridine, bpa = 4-(2-(pyridine-4-yl)ethyl)pyridine, bpy = 4-(pyridine-4-yl)pyridine). The complexes were further characterized by single-crystal X-ray diffraction, power X-ray diffraction, FT-IR spectra, fluorescent measurements and variable-temperature magnetic susceptibility measurements. The results of the structural investigations show that is a charming (3,3,4)-trinodal architecture, is an interesting trinodal (3,4,5)-connected architecture, and and are isostructural, which are both (4,5)-connected networks. In addition, the magnetic measurements indicate that and show weak antiferromagnetic interactions, and the fluorescent measurement shows the strong solid-state fluorescent emission at room temperature for .
Authors:
Lin Cui; Xin-Jun Luan; Cui-Ping Zhang; Yi-Fan Kang; Wen-Tao Zhang; Yao-Yu Wang; Qi-Zhen Shi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-12
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  Dalton Trans     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an, Shannxi, P. R. China. wyaoyu@nwu.edu.cn.
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