Structure of copper complexes adsorbed on a silica gel surface chemically modified with benzimidazole
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/12/1994
|
Resumo |
Silica gel having a particle size between 0.2 and 0.05 mm and a specific surface area, S BET = 473 m 2 g -1, was chemically modified with benzimidazole. Adsorption isotherms of CuX 2 (X = Cl, Br or ClO 4) from ethanol and acetone solutions were studied at 298 K. The metal is bonded to the surface through the free nitrogen atom of the attached benzimidazole. The average number of ligands co-ordinated to the central metal ion was shown to depend on the solid surface loading by the solute. At low loading the electronic and ESR spectral parameters indicated that the copper ion is in a distorted-tetragonal symmetry field. |
Formato |
1493-1497 |
Identificador |
http://dx.doi.org/10.1039/DT9940001493 Journal of the Chemical Society, Dalton Transactions, n. 9, p. 1493-1497, 1994. 1472-7773 http://hdl.handle.net/11449/132367 10.1039/DT9940001493 WOS:A1994NL11300025 2-s2.0-37049069576 2-s2.0-37049069576.pdf |
Idioma(s) |
eng |
Publicador |
Royal Soc Chemistry |
Relação |
Journal of the Chemical Society: Dalton Transactions |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |