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Type: Artigo
Title: High pressure studies on bis(L-histidinate)nickel(II) monohydrate
Author: Maia, J. R.
Lima, J. A.
Freire, P. T. C.
Melo, F. E. A.
Menezes, A. S. de
Remédios, C. M. R.
Cardoso, L. P.
Abstract: Raman spectra of bis (L-histidinate)nickel(11) monohydrate crystal were obtained for pressures up to 9.5 GPa. Our results show the disappearance of some of the Raman modes and the appearance of other modes. These modifications evidence that the sample undergoes phase transitions at around 0.8 and 3.2 GPa. The role played by the Ni ions and hydrogen bonds in the dynamics of the phase transitions is discussed. Under decompression, down to atmospheric pressure, the original Raman spectra are recovered, showing that both phase transitions are fully reversible.
Subject: Níquel
Transição de fase
Espectroscopia Raman
Física de alta pressão
Complexos metálicos
Country: Holanda
Editor: Elsevier
Rights: fechado
Identifier DOI: 10.1016/j.saa.2017.08.040
Date Issue: 2018
Appears in Collections:IFGW - Artigos e Outros Documentos

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