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Synthesis、Structures and Characters of Coordination Polymers of Aromatic Carboxylic Acid

Author: YuanDeYun
Tutor: LiBaoLong
School: Suzhou University
Course: Inorganic Chemistry
Keywords: Coordination polymers Transition metal complex Aromatic carboxylic acids
CLC: O631
Type: Master's thesis
Year: 2011
Downloads: 16
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Abstract


Coordination polymer constructing the carboxylic acid ligand is a very important class of organic ligands . Relative fatty acid ligands , aromatic carboxylic acid ligands more rigid , easy with the metal to form holes in the compound , has good stability , and has important significance and broad application prospects . The papers connected with a flexible bridge ligand 4 - oxyacetate phenylacetic acid (H 2 cpa) and transition metal ions Cd (II ) , Cu (II ) and Zn (Ⅱ) Synthesis 11 complexes : { [ Cd ( cpa ) (2,2 ' - bipy) O ) ] · 2H ( H 2 2 O} n (1), {[Cd (cpa) (phen)] · 3H 2 O} n (2), [Cd (cpa)] n (3), {[Cu (cpa) (2,2 '-bipy) (H 2 O)] · 2H 2 O} n < / sub> (4), [Cu (cpa) (phen) (H 2 O)] 2 · 6H 2 O (5) , Cu (Hcpa) 2 (H 2 O) 2 (6), Cu (Hcpa) 2 ( H 2 O) 3 (7), [Zn (cpa) (2,2 '-bipy) (H 2 O)] 2 (8), [Zn (cpa) (phen) (H 2 O)] 2 (9), {[Zn (cpa) (bte) (H 2 O) 2 ] · 2H 2 O} n (10), {[Zn (cpa) (bpe) ] · 2H 2 O} n (11). By elemental analysis, infrared spectroscopy and single crystal X-ray diffraction to characterize these 11 , the composition and structure of the complexes , the complex was determined (1 ) - (3) , (8) - (11 ) the fluorescence spectra of and study of complexes of (1) - (7) and ( 10 ) the nature of the thermal gravimetric . Complexes (1) and (2) the ligand H 2 CPA through a one-dimensional chain structure is formed in the form of bridged with a metal ion ligand ; (4) - (9 ) containing intramolecular or intermolecular hydrogen bonding , which is connected into a three-dimensional network or one-dimensional chain structure ; (3) for a three-dimensional network structure ; ( 10 ) and ( 11 ) for the two-dimensional grid structure and ligand H 2 cpa disorderly phenomenon also appeared .

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CLC: > Mathematical sciences and chemical > Chemistry > Polymer chemistry ( polymer ) > Polymer physics and physical chemistry of polymers
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