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|Type:||Artigo de periódico|
|Title:||Esr Study Of Cucl2 Adsorbed On A Chemically Modified Silica Gel Surface With Benzimidazole Molecule|
|Author:||Dias Filho N.L.|
|Abstract:||The ESR spectrum of CuCl2 adsorbed onto a silica gel surface chemically modified with the benzimidazole molecule showed that the surface complex has an octahedral symmetry with tetragonal distortion. The measured ESR parameters were g∥ = 2.287, g⊥ = 2.062, A∥ = 153 G and superhyperfine splitting AN = 15 G. The fit of the theoretical expressions to the experimental data was very reasonable. The effective spin orbit coupling constant for Cu2+ was reduced from its normal free ion value of λ = -828 cm-1 by as much as 30%. This reduction of λ is normal in the solid state and in frozen solution complexes. © 1995.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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