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Thermal Stability and Spectral Properties of Pyrazine-2,3-dicarboxylatocopper(II) Complexes with Ronicol
Mojumdar, S. C., Lebrušková, K. and Valigura, D. Thermal Stability and Spectral Properties of Pyrazine-2,3-dicarboxylatocopper(II) Complexes with Ronicol Chemical Papers, Vol.57, No. 4, 2003, 245-249
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n574a245.pdf
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574a245.pdf |
application/pdf |
166.52KB |
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| Author(s) |
Mojumdar, S. C.
Lebrušková, K.
Valigura, D.
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| Title |
Thermal Stability and Spectral Properties of Pyrazine-2,3-dicarboxylatocopper(II) Complexes with Ronicol
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| Journal name |
Chemical Papers
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| Publication date |
2003
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| Year available |
2003
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| Volume number |
57
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| Issue number |
4
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| ISSN |
0366-6352
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| Start page |
245
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| End page |
249
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2003
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| Language |
english
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| Subject |
250000 Chemical Sciences
250200 Inorganic Chemistry
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| Abstract/Summary |
This paper reports an investigation of thermal and spectral properties of the complexes Cu(2,3- pdc)•1/2H2O (I), Cu(2,3-Hpdc)2•2H2O (II), and Cu(2,3-Hpdc)2(ron)2 (III) (where 2,3-Hpdc = monoanion and 2,3-pdc = dianion of pyrazine-2,3-dicarboxylic acid and ron = ronicol (3- pyridylmethanol)). TG, DTG, DTA, IR, and electronic spectra have been applied to investigate thermal and spectral properties of these complexes. The chemical composition of the complexes, the solid intermediates, and the resultant products of thermolysis have been identified by means of elemental analysis and complexometric titration. Schemes of destruction of these complexes are suggested. Heating of these compounds first resulted in a release of water molecules. The thermal stability of these complexes increases in the sequence: I, II, III. The final product of the thermal decomposition was CuO in all cases. IR data suggested a unidentate coordination of carboxylates to Cu(II) in complexes I—III.
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