Research output: Contribution to journal › Article › peer-review
Synthesis and crystal structure of two novel polymorphs of (NaCl)[Cu(HSeO3)2]: a further contribution to the family of layered copper hydrogen selenites. / Гришаев, Василий Юрьевич; Сийдра, Олег Иоханнесович; Марковски, Мишел; Чаркин, Д. О.; Omelchenko, Timofey A. ; Назарчук, Евгений Васильевич.
In: Zeitschrift fur Kristallographie - Crystalline Materials, Vol. 238, No. 5-6, 30.03.2023, p. 177-185.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Synthesis and crystal structure of two novel polymorphs of (NaCl)[Cu(HSeO3)2]: a further contribution to the family of layered copper hydrogen selenites
AU - Гришаев, Василий Юрьевич
AU - Сийдра, Олег Иоханнесович
AU - Марковски, Мишел
AU - Чаркин, Д. О.
AU - Omelchenko, Timofey A.
AU - Назарчук, Евгений Васильевич
PY - 2023/3/30
Y1 - 2023/3/30
N2 - Crystals of two new polymorphic forms of the known compound (NaCl)[Cu(HSeO3)2], which we term polymorphs II and III, were formed after a ca. one-year dwelling of a crystalline precipitate under mother liquor and upon crystallization in the presence of K+, respectively. Both structures belong to the "layered copper hydroselenite"family. The polymorph II is a structural analog of (KCl)[Cu(HSeO3)2] with a fully ordered Na+ site; the main difference concerns the environment of Cu2+ which is more regular in (NaCl)[Cu(HSeO3)2]-II. In contrast to some expectations, crystallization from solutions containing KCl. NaCl, CuCl2, and H2SeO3 upon evaporation does not result in formation of mixed (Na1-xK x Cl)[Cu(HSeO3)2] crystals, but rather in a separate crystallization of (KCl)[Cu(HSeO3)2] and (NaCl)[Cu(HSeO3)2]-III which exhibits a complex structure with four ordered and one disordered Na+ sites. It is possible that longer crystallization times enhance formation of ordered structures.
AB - Crystals of two new polymorphic forms of the known compound (NaCl)[Cu(HSeO3)2], which we term polymorphs II and III, were formed after a ca. one-year dwelling of a crystalline precipitate under mother liquor and upon crystallization in the presence of K+, respectively. Both structures belong to the "layered copper hydroselenite"family. The polymorph II is a structural analog of (KCl)[Cu(HSeO3)2] with a fully ordered Na+ site; the main difference concerns the environment of Cu2+ which is more regular in (NaCl)[Cu(HSeO3)2]-II. In contrast to some expectations, crystallization from solutions containing KCl. NaCl, CuCl2, and H2SeO3 upon evaporation does not result in formation of mixed (Na1-xK x Cl)[Cu(HSeO3)2] crystals, but rather in a separate crystallization of (KCl)[Cu(HSeO3)2] and (NaCl)[Cu(HSeO3)2]-III which exhibits a complex structure with four ordered and one disordered Na+ sites. It is possible that longer crystallization times enhance formation of ordered structures.
KW - [Cu(HSeO3)2] layers
KW - copper
KW - layered structures
KW - polymorphism
KW - selenites
UR - https://www.degruyter.com/document/doi/10.1515/zkri-2023-0004/html
UR - https://www.mendeley.com/catalogue/6db44b1b-15f7-3c42-9cd3-bc1bc4adc113/
U2 - 10.1515/zkri-2023-0004
DO - 10.1515/zkri-2023-0004
M3 - Article
VL - 238
SP - 177
EP - 185
JO - Zeitschrift fur Kristallographie - Crystalline Materials
JF - Zeitschrift fur Kristallographie - Crystalline Materials
SN - 2194-4946
IS - 5-6
ER -
ID: 104088245