Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia

Advanced Search

Journal of Structural Chemistry

2014 year, number 4


Yu. V. Seryotkin1,2, V. V. Bakakin3, I. V. Pekov4
1Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State University, Russia
3Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
4Moscow State University, Russia
Keywords: к цирконосиликат, илерит, кристаллическая структура, высокое давление, zirconosilicate, hilairite, crystal structure, high pressure


The behavior of natural zeolite-like hetero-framework zirconosilicate hilairite |Na 1.47H 0.53(H 2O) 2.7| [ZrSi 3O 9] is studied by single crystal X-ray diffraction at a high pressure (up to 4.73 GPa): space group R3, a = 10.5667(2) Å, c = 15.9109(4) Å, V = 1538.54(6) Å 3, Z = 6. The compression of hilairite is practically isometric in the whole pressure range studied and is close to linear. Above 3.5 GPa an increasing deterioration of the single crystal is observed, which is interpreted as the started first order phase transition accompanied by significant volumetric changes.