Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Distribution of D2O Molecules of First and Second Types in Hydrothermally Grown Beryl Crystals. / Belyanchikov, M. A.; Abramov, P. A.; Ragozin, A. L. и др.
в: Crystal Growth and Design, Том 21, № 4, 07.04.2021, стр. 2283-2291.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Distribution of D2O Molecules of First and Second Types in Hydrothermally Grown Beryl Crystals
AU - Belyanchikov, M. A.
AU - Abramov, P. A.
AU - Ragozin, A. L.
AU - Fursenko, D. A.
AU - Gorshunov, B. P.
AU - Thomas, V. G.
N1 - Funding Information: The research was carried out in accordance with the state assignment of IGM SB RAS and supported by Program 5–100 of Russian Ministry of Science and Higher Education. The technical and financial assistance for growing the DO-containing beryl crystal were provided by Tairus LLC (Novosibirsk, Russia). The authors express their gratitude to O. A. Kozmenko (IGM, Novosibirsk, Russia) for participating in the discussion of the work and E. Poslavskaya (Tomas), and for the thorough work on proof-reading and editing of the manuscript. 2 a Publisher Copyright: © 2021 American Chemical Society.
PY - 2021/4/7
Y1 - 2021/4/7
N2 - This article reports on the uneven distribution of water molecules of first (D2O-I) and second (D2O-II) types in a D2O-containing beryl crystal grown hydrothermally on a non-singularly oriented flat seed {5.5.10¯.6}, as identified by infrared spectroscopic studies of crystal fragments. The distribution of D2O-II molecules is very heterogeneous, and their maximal concentrations are at the boundaries of the growth sectors of micro-faces, which protrude from the surface growth front {5.5.10¯.6}. We attribute this increase in the D2O-II content to the tensions and the resulting increased internal pressure at the boundaries of the growth sectors of micro-faces. Specifically, the increased internal pressure shifts the isomorphic substitution equation in beryl SiT14+ → AlT13+ + LiR″+ to the right (T1 and R″ denote the crystal's chemical positions of cations), which triggers the D2O-I → D2O-II transformation. The number of growth sector boundaries goes down as the growth front moves, reducing the number of areas with increased internal pressure and the proportion of D2O-II/D2O-I.
AB - This article reports on the uneven distribution of water molecules of first (D2O-I) and second (D2O-II) types in a D2O-containing beryl crystal grown hydrothermally on a non-singularly oriented flat seed {5.5.10¯.6}, as identified by infrared spectroscopic studies of crystal fragments. The distribution of D2O-II molecules is very heterogeneous, and their maximal concentrations are at the boundaries of the growth sectors of micro-faces, which protrude from the surface growth front {5.5.10¯.6}. We attribute this increase in the D2O-II content to the tensions and the resulting increased internal pressure at the boundaries of the growth sectors of micro-faces. Specifically, the increased internal pressure shifts the isomorphic substitution equation in beryl SiT14+ → AlT13+ + LiR″+ to the right (T1 and R″ denote the crystal's chemical positions of cations), which triggers the D2O-I → D2O-II transformation. The number of growth sector boundaries goes down as the growth front moves, reducing the number of areas with increased internal pressure and the proportion of D2O-II/D2O-I.
UR - http://www.scopus.com/inward/record.url?scp=85103375381&partnerID=8YFLogxK
U2 - 10.1021/acs.cgd.0c01702
DO - 10.1021/acs.cgd.0c01702
M3 - Article
AN - SCOPUS:85103375381
VL - 21
SP - 2283
EP - 2291
JO - Crystal Growth and Design
JF - Crystal Growth and Design
SN - 1528-7483
IS - 4
ER -
ID: 34174323