Refinement of Unit Cell Parameters on Modern Single-Crystal Diffractometers. Study of the Anisotropy of the α-33S Single Crystal Thermal Expansion; Crystallography Reports; Vol. 69, iss. 4

Refinement of Unit Cell Parameters on Modern Single-Crystal Diffractometers. Study of the Anisotropy of the α-33S Single Crystal Thermal Expansion

Detaylı Bibliyografya
Parent link:Crystallography Reports=Кристаллография.— .— New York: Pleiades Publishing, Inc.
Vol. 69, iss. 4.— 2024.— P. 513-521
Müşterek Yazar: National Research Tomsk Polytechnic University (570)
Diğer Yazarlar: Serebrennikova P. S. Polina Sergeevna, Panchenko A. V., Egorov N. B. Nikolai Borisovich, Gromilov S. A. Sergey Aleksandrovich
Özet:Title screen
A technique for refining unit cell parameters of crystals belonging to arbitrary systems on modern single-crystal diffractometers is described. The technique is based on the 2D-detector position calibration. The elementary orthorhombic unit cell parameters of the α-33S single crystal have been refined. The anisotropy of change in the parameters in the range of 90–350 K has been analyzed. The relative increase in the parameter c is shown to be 6.4%. The obtained dependences are approximated by second–third degree polynomials. The absolute and relative increments in the unit cell volume were found to be 138.4 Å3 and 4.3%, respectively. The temperature dependences of the thermal-expansion tensor elements have been refined. The coefficients of thermal expansion of α-33S at room temperature turned out to be α11 = 15.35 × 10–5, α22 = 8.56 × 10–5, and α33 = 9.12 × 10–5 K–1
Текстовый файл
AM_Agreement
Dil:İngilizce
Baskı/Yayın Bilgisi: 2024
Konular:
труды учёных ТПУ
электронный ресурс
Online Erişim:https://doi.org/10.1134/S1063774524601412
Статья на русском языке
Materyal Türü: Elektronik Kitap Bölümü
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=676805

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