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KNO3⋅3H2SeO3 and NaHSeO3⋅3H2SeO3: Two non-centrosymmetric co-crystals. / Charkin, Dmitri O. ; Grishaev, Vasili Yu ; Omelchenko, Timofei A. ; Nazarchuk, Evgeni V. ; Stefanovich, Sergey Yu. ; Siidra, Oleg I. .
в: Solid State Sciences, Том 137, 107116, 2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - KNO3⋅3H2SeO3 and NaHSeO3⋅3H2SeO3: Two non-centrosymmetric co-crystals
AU - Charkin, Dmitri O.
AU - Grishaev, Vasili Yu
AU - Omelchenko, Timofei A.
AU - Nazarchuk, Evgeni V.
AU - Stefanovich, Sergey Yu.
AU - Siidra, Oleg I.
N1 - DOI: 10.1016/j.solidstatesciences.2023.107116
PY - 2023
Y1 - 2023
N2 - A new compound KNO3⋅3H2SeO3 was synthesized via reaction of KNO3 and H2SeO3 in an acidic aqueous solution. Its crystal structure (P21, a = 10.2709 (8) Å, b = 6.2840 (3) Å, c = 10.3886 (8) Å, β = 118.83 (1)°, R1 = 0.036) can be described as a monoclinically distorted hydrogen-bonded hexagonal net of KO9 tricapped trigonal prisms linked by H2SeO3 molecules. The nitrate anions behave as hydrogen bond acceptors filling the channels in the [K(H2SeO3)3]+ net. The structure is totally different from that of the chemically related NaHSeO3⋅3H2SeO3 compound, for which a new structural solution was obtained (Pc, a = 5.7803 (3) Å, b = 4.9390 (2) Å, c = 21.283 (1) Å, β = 111.836 (6)°, R1 = 0.028). Yet, there are some common features in the mode of KO9 and NaO6 polyhedra linkage by the HSeO3− and H2SeO3 species in two studied compounds. The SHG signal from KNO3⋅3H2SeO3 was registered using the Kurtz – Perry technique. A moderate SHG signal of 5–6 SiO2 units was observed. Relationships to other salt-selenious acid molecular co-crystals and hydrogen selenites are discussed.
AB - A new compound KNO3⋅3H2SeO3 was synthesized via reaction of KNO3 and H2SeO3 in an acidic aqueous solution. Its crystal structure (P21, a = 10.2709 (8) Å, b = 6.2840 (3) Å, c = 10.3886 (8) Å, β = 118.83 (1)°, R1 = 0.036) can be described as a monoclinically distorted hydrogen-bonded hexagonal net of KO9 tricapped trigonal prisms linked by H2SeO3 molecules. The nitrate anions behave as hydrogen bond acceptors filling the channels in the [K(H2SeO3)3]+ net. The structure is totally different from that of the chemically related NaHSeO3⋅3H2SeO3 compound, for which a new structural solution was obtained (Pc, a = 5.7803 (3) Å, b = 4.9390 (2) Å, c = 21.283 (1) Å, β = 111.836 (6)°, R1 = 0.028). Yet, there are some common features in the mode of KO9 and NaO6 polyhedra linkage by the HSeO3− and H2SeO3 species in two studied compounds. The SHG signal from KNO3⋅3H2SeO3 was registered using the Kurtz – Perry technique. A moderate SHG signal of 5–6 SiO2 units was observed. Relationships to other salt-selenious acid molecular co-crystals and hydrogen selenites are discussed.
KW - selenites
KW - CO-CRYSTALS
KW - Molecular crystals
KW - hydrogen bonding
KW - Non-centrosymmetric compounds
UR - https://www.sciencedirect.com/science/article/pii/S1293255823000080
UR - https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4284321
M3 - Article
VL - 137
JO - Solid State Sciences
JF - Solid State Sciences
SN - 1293-2558
M1 - 107116
ER -
ID: 103926350