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

Cameron, C.A., Allan, D.R., Kamenev, K.V., Moggach, S.A., Murrie, M. and Parsons, S. (2014) A pressure-induced displacive phase transition in Tris(ethylenediamine) Nickel(II) nitrate. Zeitschrift für Kristallographie – Crystalline Materials, 229(3), pp. 200-209. (doi: 10.1515/zkri-2013-1688)

Abstract

[Ni(en)3][NO3]2 undergoes a displacive phase transition from P6322 at ambient pressure to a lower symmetry P6122/P6522 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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Murrie, Professor Mark
• Authors: Cameron, C.A., Allan, D.R., Kamenev, K.V., Moggach, S.A., Murrie, M., and Parsons, S.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Zeitschrift für Kristallographie – Crystalline Materials
• Publisher: De Gruyter
• ISSN: 2194-4946
• ISSN (Online): 2196-7105
• Copyright Holders: Copyright © 2014 Walter de Gruyter Berlin Boston
• First Published: Zeitschrift für Kristallographie – Crystalline Materials 229(3):200-209
• Publisher Policy: Reproduced under a Creative Commons License