Crystallography Under Extreme Conditions: State of the Art and Perspectives

Legrand, Vincent

doi:10.5772/48608

Cited by 2 publications

(1 citation statement)

References 132 publications

(110 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…52 Extreme condition measurements are always a challenge which must also be overcome in the field of the spin crossover phenomenon. The obtained results confirm that a structural phase transition from the orthorhombic to the monoclinic symmetry occurs at about 0.8 GPa, i.e.…”

Section: Discussionmentioning

confidence: 99%

Synergy between polymorphism, pressure, spin-crossover and temperature in [Fe(PM-BiA)2(NCS)2]: a neutron powder diffraction investigation

Legrand

Péchev

Létard

et al. 2013

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

The pressure dependencies of the lattice parameters of the spin transition compound [Fe(PM-BiA)2(NCS)2] have been derived from neutron powder diffraction measurements at low temperature. The study of the compound [Fe(PM-BiA)2(NCS)2]-pI has first confirmed the atypical spin crossover behaviour under pressure of this compound that shows a pressure induced structural transition inducing the transformation into a different polymorph, [Fe(PM-BiA)2(NCS)2]-pII. This phenomenon avoids a first-order spin transition in favour of continuous transition around 0.75 GPa at ambient temperature. Low temperature measurements under pressure up to 1.07 GPa allowed us not only to describe the spin-crossover for both polymorphs but also to reach phase-diagram regions where both polymorphs co-exist in different spin-states. Finally, the reversibility of the structural variations has been demonstrated.

show abstract

Section: Discussionmentioning

confidence: 99%