0000000001209278
AUTHOR
Michael Loitzenbauer
High-Pressure Behavior of Nickel Sulfate Monohydrate: Isothermal Compressibility, Structural Polymorphism, and Transition Pathway
Single crystals of synthetic nickel sulfate monohydrate, α-NiSO4·H2O (space-group symmetry C2/c at ambient conditions), were subject to high-pressure behavior investigations in a diamond-anvil cell up to 10.8 GPa. By means of subtle spectral changes in Raman spectra recorded at 298 K on isothermal compression, two discontinuities were identified at 2.47(1) and 6.5(5) GPa. Both transitions turn out to be apparently second order in character, as deduced from the continuous evolution of unit-cell volumes determined from single-crystal X-ray diffraction. The first structural transition from α- to β-NiSO4·H2O is an obvious ferroelastic C2/c–P1̅ transition. It is purely displacive from a structur…
CSD 1981957: Experimental Crystal Structure Determination
Related Article: Martin Ende, Terhi Kirkkala, Michael Loitzenbauer, Dominik Talla, Manfred Wildner, Ronald Miletich|2020|Inorg.Chem.|59|6255|doi:10.1021/acs.inorgchem.0c00370
CSD 1981955: Experimental Crystal Structure Determination
Related Article: Martin Ende, Terhi Kirkkala, Michael Loitzenbauer, Dominik Talla, Manfred Wildner, Ronald Miletich|2020|Inorg.Chem.|59|6255|doi:10.1021/acs.inorgchem.0c00370
CSD 1981958: Experimental Crystal Structure Determination
Related Article: Martin Ende, Terhi Kirkkala, Michael Loitzenbauer, Dominik Talla, Manfred Wildner, Ronald Miletich|2020|Inorg.Chem.|59|6255|doi:10.1021/acs.inorgchem.0c00370
CSD 1981956: Experimental Crystal Structure Determination
Related Article: Martin Ende, Terhi Kirkkala, Michael Loitzenbauer, Dominik Talla, Manfred Wildner, Ronald Miletich|2020|Inorg.Chem.|59|6255|doi:10.1021/acs.inorgchem.0c00370