SOLUTE STRUCTURE OF COPPERIIACETATE SOLUTIONS IN LIQUID AND GLASSY STATESReport as inadecuate




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Abstract : Structures of solutes in copperIIacetate aqueous and ethanolic solutions in both liquid and glassy states are determined by means of EXAFS and XANES. The solute in the aqueous solution has monomeric structure in both states. It has four short Cu-O bonds 195pm and two longer bonds 228pm in glassy water-glycerol mixed solution. On the other hand, it has dimeric structure similar to its crystalline state in both states of ethanolic solutions. Weaker interactions such as Jahn-Teller elongation and nonbonded interatomic pairs are clarified by vitrifying the solutions and information on non-uniform Cu-O bond lengths are extracted by comparing the EXAFS spectra of solutions in the liquid and glassy states.





Author: M. Nomura T. Yamaguchi

Source: https://hal.archives-ouvertes.fr/



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