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Title: Synthesis and structural characterization of three copper coordination polymers with pyridine derivatives from hydro(solvo)thermal in situ decarboxylation reactions of 2,5-dicarboxylpyridine

The hydro(solvo)thermal self-assembles of CuI, KI and 2,5-dicarboxylpyridine [2,5-(COOH){sub 2}py] in different molar ratios in H{sub 2}O/alcohol solutions produced three Cu coordination polymers as 2-D [N-C{sub 2}H{sub 5}py][Cu{sub 3}I{sub 4}] 1, 1-D [N-CH{sub 3}py][Cu{sub 2}I{sub 3}] 2 as well as 1-D [Cu(2-COOpy){sub 2}]{center_dot}H{sub 2}O 3 (N-C{sub 2}H{sub 5}py=N-ethylpyridine, N-CH{sub 3}py=N-methylpyridine, 2-COOpy=2-carboxylpyridine). N-C{sub 2}H{sub 5}py in 1 and N-CH{sub 3}py in 2 derived from the solvothermal in situ simultaneous decarboxylation and N-alkylation reactions of 2,5-(COOH){sub 2}py. The semi-decarboxylation reaction of 2,5-(COOH){sub 2}py into 2-COOpy occurred in the preparation of 3. X-ray single-crystal analysis revealed that CuI is transformed into a 2-D [Cu{sub 3}I{sub 4}]{sup -} layer in compound 1 and a 1-D chain in compound 2, templated by [N-C{sub 2}H{sub 5}py]{sup +} and [N-CH{sub 3}py]{sup +}, respectively. Compound 3 is a divalent Cu compound. The Cu(II) centers with a 4+2 geometry are coordinated by {mu}{sub 3}-mode 2-COOpy ligands. All of the title compounds were characterized by CHN analysis, IR spectrum analysis and TG analysis. Compounds 1 and 2 exhibit fluorescence properties with the maximum emissions at 581 nm for 1 and 537 nm for 2. - Graphical abstract: Three compounds were obtained via in situ metal-ligand hydro(solvo)thermal reactions of 2,5-(cooh){sub 2}pymore » with cui. Three types of in situ reactions occurred for 2,5-(cooh){sub 2}py: decarboxylation n-ethylated in 1, n-methylated in 2 and semi-decarboxylation in 3.« less
Authors:
;  [1] ;  [1] ;  [2] ; ;  [1] ;  [1]
  1. College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130023 (China)
  2. (China)
Publication Date:
OSTI Identifier:
21421546
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 183; Journal Issue: 7; Other Information: DOI: 10.1016/j.jssc.2010.04.033; PII: S0022-4596(10)00180-5; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; ALKYLATION; COPPER COMPLEXES; COPPER IODIDES; DECARBOXYLATION; FLUORESCENCE; INFRARED SPECTRA; LIGANDS; MONOCRYSTALS; POLYMERS; POTASSIUM IODIDES; PYRIDINE; SOLUTIONS; SYNTHESIS; THERMAL GRAVIMETRIC ANALYSIS; WATER ALKALI METAL COMPOUNDS; AZINES; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; COMPLEXES; COPPER COMPOUNDS; COPPER HALIDES; CRYSTALS; DISPERSIONS; EMISSION; GRAVIMETRIC ANALYSIS; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC PHOSPHORS; IODIDES; IODINE COMPOUNDS; LUMINESCENCE; MIXTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORS; PHOTON EMISSION; POTASSIUM COMPOUNDS; PYRIDINES; QUANTITATIVE CHEMICAL ANALYSIS; SPECTRA; THERMAL ANALYSIS; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENT COMPOUNDS