X-RAY DIFFRACTION STUDY OF О±-34S WITHIN TEMPERATURE RANGE 100-363 K
S. A. Gromilov1,2, D. A. Piryazev1,2, N. B. Egorov3, D. V. Akimov3
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk National Research State University, Novosibirsk, Russia
3National Research Tomsk Polytechnic University, Tomsk,Russia
Keywords: сера, изотоп, рентгеноструктурный анализ, кристаллохимия, sulfur, isotope, X-ray crystallography, crystal chemistry
Abstract
α-34S has been studied with X-ray crystallography within 100-363 K. Anisotropy of the evolution of the parameters of the orthorhombic unit cell has been examined. The absolute increase in the cell volume is 154 Å3, and the relative one is 4.8%. It has been demonstrated that in the studied range the intramolecular S-S bond lengths are shortened at average by 0.006 Å on heating. At the same time, intermolecular contacts S…S shorter than the sum of van der Waals radii demonstrate average elongation of 0.097 Å.
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