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A pressure-induced displacive phase transition in Tris(ethylenediamine) Nickel(II) nitrate

DOI: 10.1515/zkri-2013-1688 DOI Help

Authors: Chris Cameron (University of Edinburgh) , Dave Allan (Diamond Light Source) , Konstantin Kamenev (University of Edinburgh) , Stephen Moggach (The University of Edinburgh) , Mark Murrie (University of Glasgow) , Simon Parsons (The University of Edinburgh)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Zeitschrift Für Kristallographie – Crystalline Materials , VOL 229

State: Published (Approved)
Published: January 2014

Abstract: [Ni(en)3][NO3]2undergoes a displacive phasetransition fromP6322 at ambient pressure to a lower sym-metryP6122/P6522 structure between 0.82 and 0.87 GPa,which is characterized by a tripling of the unit cellc-axisand the number of molecules per unit cell. The same tran-sition has been previously observed at 108 K. Theapplication of pressure leads to a general shortening of O...H hydrogen bonding interactions in the structure, withthe greatest contraction (24%) occurring diagonally be-tween stacks of Ni cation moieties and nitrate anions

Journal Keywords: phase transition, high pressure, synchrotronradiation, coordiniation chemistry

Subject Areas: Chemistry


Instruments: I19-Small Molecule Single Crystal Diffraction

Added On: 04/05/2016 14:50

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