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Structural Transformations of [CuEn 3]WO4 Complex Salt in the Range 100–390 K and Its Degradation to [CuEn 2](WO4)·2H2O. / Khranenko, S. P.; Sukhikh, A. S.; Komarov, V. Yu и др.
в: Journal of Structural Chemistry, Том 60, № 11, 01.11.2019, стр. 1790-1798.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Structural Transformations of [CuEn 3]WO4 Complex Salt in the Range 100–390 K and Its Degradation to [CuEn 2](WO4)·2H2O
AU - Khranenko, S. P.
AU - Sukhikh, A. S.
AU - Komarov, V. Yu
AU - Gromilov, S. A.
N1 - Publisher Copyright: © 2019, Pleiades Publishing, Inc. Copyright: Copyright 2019 Elsevier B.V., All rights reserved. Publisher Copyright: © 2019, Pleiades Publishing, Inc.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - The crystal structure of [CuEn3]WO4 (En is ethylenediamine) is studied in the temperature range 100–390 K. Crystallographic data at 100 K are: a = 27.6903(8) Å, c = 9.9405(3) Å, space group P3̄, V = 6600.8(4) Å3, Z = 18. Copper atomic coordination is a distorted square bipyramid. Four short Cu–N distances are within 2.038(5)–2.110(6) Å; two long distances are within 2.374(8)–2.514(7) Å. The lengths of N–H…O interionic contacts lie within 1.96–2.17 Å. A temperature elevation makes the Cu–N distances equal: at 298 K they are within 2.066(2)–2.256(3) Å(a = 16.0391(8) Å, c = 9.9608(6) Å, space group P3̄c1, V = 2219.1(3) Å3, Z = 6), and at 390 K they are 2.151(6) Å(a = 9.2986(10) Å, c = 10.0520(14) Å, P3̄1c, V = 752.7(2) Å3, Z = 2). In the range from 100 K to 390 K the average W–O distances decrease from 1.776 Å to 1.734 Å. Hirshfeld surfaces of complex cations are analyzed. It is shown that with increasing temperature the number of interionic N–H…O contacts decreases. The [CuEn3]WO4 phase is found to be unstable and on storing in air it transforms into [CuEn2](WO4)·2H2O.
AB - The crystal structure of [CuEn3]WO4 (En is ethylenediamine) is studied in the temperature range 100–390 K. Crystallographic data at 100 K are: a = 27.6903(8) Å, c = 9.9405(3) Å, space group P3̄, V = 6600.8(4) Å3, Z = 18. Copper atomic coordination is a distorted square bipyramid. Four short Cu–N distances are within 2.038(5)–2.110(6) Å; two long distances are within 2.374(8)–2.514(7) Å. The lengths of N–H…O interionic contacts lie within 1.96–2.17 Å. A temperature elevation makes the Cu–N distances equal: at 298 K they are within 2.066(2)–2.256(3) Å(a = 16.0391(8) Å, c = 9.9608(6) Å, space group P3̄c1, V = 2219.1(3) Å3, Z = 6), and at 390 K they are 2.151(6) Å(a = 9.2986(10) Å, c = 10.0520(14) Å, P3̄1c, V = 752.7(2) Å3, Z = 2). In the range from 100 K to 390 K the average W–O distances decrease from 1.776 Å to 1.734 Å. Hirshfeld surfaces of complex cations are analyzed. It is shown that with increasing temperature the number of interionic N–H…O contacts decreases. The [CuEn3]WO4 phase is found to be unstable and on storing in air it transforms into [CuEn2](WO4)·2H2O.
KW - complex salt
KW - copper bis(ethylenediamine)
KW - copper tris(ethylenediamine)
KW - crystal chemistry
KW - Jahn–Teller effect
KW - thermal decomposition
KW - tungstate anion
KW - X-ray crystallographic analysis
KW - CRYSTAL-STRUCTURES
KW - DISTORTIONS
KW - Jahn-Teller effect
KW - FEATURES
KW - PHASE-TRANSITION
KW - SPECTRA
UR - http://www.scopus.com/inward/record.url?scp=85076534143&partnerID=8YFLogxK
U2 - 10.1134/S002247661911012X
DO - 10.1134/S002247661911012X
M3 - Article
AN - SCOPUS:85076534143
VL - 60
SP - 1790
EP - 1798
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 11
ER -
ID: 23002328