CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFUNCAP - FUNDAÇÃO CEARENSE DE APOIO AO DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICORaman 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.189258264CNPQ - CONSELHO NACIONAL DE DESE...
In this work, we present a study of the Raman scattering of DL-valine crystals (C5H11NO2) at room te...
International audienceRaman spectroscopy investigations of dl-alanine crystal under high pressures h...
The effect of pressure on the 2H and 4H polytype of PbI<sub>2</sub> has been investigated by Raman a...
Neste trabalho cristais de L-histidinato de nÃquel (II) monohidratado (Ni(C6H8N3O2)2.H2O) foram obti...
For many years amino acid crystals aroused much interest due to their application in areas such as n...
The existence of very short non-bonded H-H distances in β-Ni(OH)<SUB>2</SUB> at ambient conditi...
Infrared absorption and Raman study of β-Ni(OH)2 has been carried out up to 25 GPa and 33 GPa, ...
The study of solids at high pressure and variable temperature enables development of accurate intera...
Nickel cyanide is a layered material showing markedly anisotropic behaviour. High-pressure neutron d...
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)In this work the Fourier transfo...
Raman spectra of deuterated L alanine have been obtained at high pressure conditions. A phase trans...
Studying the lattice stability of ilmenite-type compounds under extreme conditions such as high temp...
We present a combined high pressure Ni K-edge x-ray absorption and Raman spectroscopic investigation...
The response of biurea to high pressures is investigated by <i>in situ</i> Raman spectroscopy and an...
Ilmenite-type NiTiO3 has been studied by Raman spectroscopy under hydrostatic and non-hydrostatic pr...
In this work, we present a study of the Raman scattering of DL-valine crystals (C5H11NO2) at room te...
International audienceRaman spectroscopy investigations of dl-alanine crystal under high pressures h...
The effect of pressure on the 2H and 4H polytype of PbI<sub>2</sub> has been investigated by Raman a...
Neste trabalho cristais de L-histidinato de nÃquel (II) monohidratado (Ni(C6H8N3O2)2.H2O) foram obti...
For many years amino acid crystals aroused much interest due to their application in areas such as n...
The existence of very short non-bonded H-H distances in β-Ni(OH)<SUB>2</SUB> at ambient conditi...
Infrared absorption and Raman study of β-Ni(OH)2 has been carried out up to 25 GPa and 33 GPa, ...
The study of solids at high pressure and variable temperature enables development of accurate intera...
Nickel cyanide is a layered material showing markedly anisotropic behaviour. High-pressure neutron d...
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)In this work the Fourier transfo...
Raman spectra of deuterated L alanine have been obtained at high pressure conditions. A phase trans...
Studying the lattice stability of ilmenite-type compounds under extreme conditions such as high temp...
We present a combined high pressure Ni K-edge x-ray absorption and Raman spectroscopic investigation...
The response of biurea to high pressures is investigated by <i>in situ</i> Raman spectroscopy and an...
Ilmenite-type NiTiO3 has been studied by Raman spectroscopy under hydrostatic and non-hydrostatic pr...
In this work, we present a study of the Raman scattering of DL-valine crystals (C5H11NO2) at room te...
International audienceRaman spectroscopy investigations of dl-alanine crystal under high pressures h...
The effect of pressure on the 2H and 4H polytype of PbI<sub>2</sub> has been investigated by Raman a...