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

被引：4

作者：

Cameron, Christopher A. ^{[1
,2
]}

Allan, David R. ^{[3
]}

Kamenev, Konstantin V. ^{[4
,5
]}

Moggach, Stephen A. ^{[1
,2
]}

Murrie, Mark ^{[6
]}

Parsons, Simon ^{[1
,2
]}

机构：

[1] Univ Edinburgh, EaStCHEM Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland

[2] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3JJ, Midlothian, Scotland

[3] Diamond Light Source, Didcot OX11 0QX, Oxon, England

[4] Univ Edinburgh, Sch Engn, Edinburgh EH9 3JZ, Midlothian, Scotland

[5] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3JZ, Midlothian, Scotland

[6] Univ Glasgow, Sch Chem, Glasgow G12 8QQ, Lanark, Scotland

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE-CRYSTALLINE MATERIALS | 2014年 / 229卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

phase transition; high pressure; synchrotron radiation; coordiniation chemistry; X-RAY-DIFFRACTION; CRYSTAL-STRUCTURES; PORE-SIZE; TEMPERATURE; POLYMORPHISM; COMPLEXES; PROGRAM; ANVIL;

D O I：

10.1515/zkri-2013-1688

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

[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.

引用

页码：200 / 209

页数：10

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