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

Christopher A. Cameron, David R. Allan, Konstantin V. Kamenev, Stephen A. Moggach, Mark Murrie, Simon Parsons*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

[Ni(en)(3)] [NO3](2) undergoes a displacive phase transition from P6(3)22 at ambient pressure to a lower symmetry P6(1)22/P6(5)22 structure between 0.82 and 0.87 GPa, which is characterized by a tripling of the unit cell c-axis and the number of molecules per unit cell. The same transition has been previously observed at 108 K. The application of pressure leads to a general shortening of O H hydrogen bonding interactions in the structure, with the greatest contraction (24%) occurring diagonally between stacks of Ni cation moieties and nitrate anions.

Original languageEnglish
Pages (from-to)200-209
Number of pages10
JournalZeitschrift für Kristallographie - Crystalline Materials
Issue number3
Early online date10 Jan 2014
Publication statusPublished - Mar 2014

Keywords / Materials (for Non-textual outputs)

  • Phase transition
  • High pressure
  • Synchrotron radiation
  • Coordiniation chemistry


Dive into the research topics of 'A pressure-induced displacive phase transition in Tris(ethylenediamine) Nickel(II) nitrate'. Together they form a unique fingerprint.

Cite this