Research output: Contribution to journal › Article › peer-review
Influence of water on the structure and magnetic properties of a copper bromide coordination compound with 3-amino-4-ethoxycarbonylpyrazole. / Berezin, A. S.; Ivanova, A. D.; Komarov, V. Yu et al.
In: New Journal of Chemistry, Vol. 42, No. 7, 07.04.2018, p. 4902-4908.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Influence of water on the structure and magnetic properties of a copper bromide coordination compound with 3-amino-4-ethoxycarbonylpyrazole
AU - Berezin, A. S.
AU - Ivanova, A. D.
AU - Komarov, V. Yu
AU - Nadolinny, V. A.
AU - Lavrenova, L. G.
N1 - Publisher Copyright: © 2018 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
PY - 2018/4/7
Y1 - 2018/4/7
N2 - The influence of water on a polynuclear [CuL2Br2]n (1) copper bromide compound with 3-amino-4-ethoxycarbonylpyrazole (L) is investigated. The abundance of water in solution results in the formation of three new complexes with drastically different coordination units: polynuclear {[CuL4Br]Br}n·nH2O (2) and two mononuclear polymorphs [CuL4Br2]·2H2O (monoclinic-3, triclinic-4). The crystal structures are determined for all three complexes. Complex 2 has a weak (≪1 cm-1) superexchange interaction between copper ions and bromide ions. Complexes 3 and 4 have no exchange interaction. It is found that the two polynuclear complexes may transform into each other through dissolution followed by recrystallization under certain conditions.
AB - The influence of water on a polynuclear [CuL2Br2]n (1) copper bromide compound with 3-amino-4-ethoxycarbonylpyrazole (L) is investigated. The abundance of water in solution results in the formation of three new complexes with drastically different coordination units: polynuclear {[CuL4Br]Br}n·nH2O (2) and two mononuclear polymorphs [CuL4Br2]·2H2O (monoclinic-3, triclinic-4). The crystal structures are determined for all three complexes. Complex 2 has a weak (≪1 cm-1) superexchange interaction between copper ions and bromide ions. Complexes 3 and 4 have no exchange interaction. It is found that the two polynuclear complexes may transform into each other through dissolution followed by recrystallization under certain conditions.
KW - SPIN TRANSITION
KW - COMPLEXES
KW - POLYMERS
KW - LENGTH
KW - CUCL2
KW - EPR
UR - http://www.scopus.com/inward/record.url?scp=85044418746&partnerID=8YFLogxK
U2 - 10.1039/c8nj00017d
DO - 10.1039/c8nj00017d
M3 - Article
AN - SCOPUS:85044418746
VL - 42
SP - 4902
EP - 4908
JO - New Journal of Chemistry
JF - New Journal of Chemistry
SN - 1144-0546
IS - 7
ER -
ID: 12214730