Inorganic Chemistry, volume 55, issue 12, pages 5853-5861
A Copper–Nitroxide Adduct Exhibiting Separate Single Crystal-to-Single Crystal Polymerization–Depolymerization and Spin Crossover Transitions
Ovcharenko V.
1
,
Fokin S.
1
,
Chubakova Elvina
1
,
Romanenko G.
1
,
Dobrokhotova Zhanna
2
,
Lukzen N.N.
1
,
Morozov Vitaly
1
,
Petrova Marina
1
,
Petrova Maria
3
,
Rozentsveig Igor
4
,
Rudyakova Elena
4
,
Levkovskaya Galina
4
,
Sagdeev Renad
5
3
Publication type: Journal Article
Publication date: 2016-05-26
Journal:
Inorganic Chemistry
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 4.6
ISSN: 00201669, 1520510X
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
A complex cascade of solid-state processes initiated by variation of temperature was found for the heterospin complex [Cu(hfac)2L(Me/Et)] formed in the reaction of copper(II) hexafluoroacetylacetonate [Cu(hfac)2] with stable nitronyl nitroxide 2-(1-methyl-3-ethyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (L(Me/Et)). The cooling of the compound below 260 K initiated a solid-state chemical reaction, which led to a depolymerization of chains and formation of a pair heterospin complex [Cu(hfac)2L(Me/Et)2][[Cu(hfac)2]3L(Me/Et)2]. Further decrease in temperature below 144 K led to a spin transition accompanied by a drastic decrease in the effective magnetic moment from 2.52 to 2.24 μB. When the compound was heated, the order of effects was reversed: at first, the magnetic moment abruptly increased, and then the molecular fragments of the pair cluster united into polymer chains. Two hysteresis loops correspond to this cascade of temperature-induced structural transformations on the experimental dependence μeff(T): one at high (T↑ = 283 K and T↓ = 260 K) and the other at low (T↑ = 161 K, T↓ = 144 K) temperature. The spin transitions were also recorded for the [[Cu(hfac)2]3L(Bu/Et)2] and [[Cu(hfac)2]5L(Bu/Et)4] molecular complexes, which are models of the trinuclear fragment of the {[Cu(hfac)2]3L(Me/Et)2} pair cluster.
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1 publication, 2.86%
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Citations by publishers
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2 publications, 5.71%
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1 publication, 2.86%
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Springer Nature
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1 publication, 2.86%
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IOP Publishing
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IOP Publishing
1 publication, 2.86%
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|
Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 2.86%
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Ovcharenko V. et al. A Copper–Nitroxide Adduct Exhibiting Separate Single Crystal-to-Single Crystal Polymerization–Depolymerization and Spin Crossover Transitions // Inorganic Chemistry. 2016. Vol. 55. No. 12. pp. 5853-5861.
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Ovcharenko V., Fokin S., Chubakova E., Romanenko G., Bogomyakov A. S., Dobrokhotova Z., Lukzen N., Morozov V., Petrova M., Petrova M., Zueva E. M., Rozentsveig I., Rudyakova E., Levkovskaya G., Sagdeev R. A Copper–Nitroxide Adduct Exhibiting Separate Single Crystal-to-Single Crystal Polymerization–Depolymerization and Spin Crossover Transitions // Inorganic Chemistry. 2016. Vol. 55. No. 12. pp. 5853-5861.
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TY - JOUR
DO - 10.1021/acs.inorgchem.6b00140
UR - https://doi.org/10.1021%2Facs.inorgchem.6b00140
TI - A Copper–Nitroxide Adduct Exhibiting Separate Single Crystal-to-Single Crystal Polymerization–Depolymerization and Spin Crossover Transitions
T2 - Inorganic Chemistry
AU - Chubakova, Elvina
AU - Dobrokhotova, Zhanna
AU - Morozov, Vitaly
AU - Petrova, Marina
AU - Petrova, Maria
AU - Rozentsveig, Igor
AU - Rudyakova, Elena
AU - Levkovskaya, Galina
AU - Sagdeev, Renad
AU - Ovcharenko, V.
AU - Fokin, S.
AU - Romanenko, G.
AU - Bogomyakov, Artem S
AU - Lukzen, N.N.
AU - Zueva, Ekaterina M
PY - 2016
DA - 2016/05/26 00:00:00
PB - American Chemical Society (ACS)
SP - 5853-5861
IS - 12
VL - 55
SN - 0020-1669
SN - 1520-510X
ER -
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@article{2016_Ovcharenko,
author = {Elvina Chubakova and Zhanna Dobrokhotova and Vitaly Morozov and Marina Petrova and Maria Petrova and Igor Rozentsveig and Elena Rudyakova and Galina Levkovskaya and Renad Sagdeev and V. Ovcharenko and S. Fokin and G. Romanenko and Artem S Bogomyakov and N.N. Lukzen and Ekaterina M Zueva},
title = {A Copper–Nitroxide Adduct Exhibiting Separate Single Crystal-to-Single Crystal Polymerization–Depolymerization and Spin Crossover Transitions},
journal = {Inorganic Chemistry},
year = {2016},
volume = {55},
publisher = {American Chemical Society (ACS)},
month = {may},
url = {https://doi.org/10.1021%2Facs.inorgchem.6b00140},
number = {12},
pages = {5853--5861},
doi = {10.1021/acs.inorgchem.6b00140}
}
Cite this
MLA
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Ovcharenko, V., et al. “A Copper–Nitroxide Adduct Exhibiting Separate Single Crystal-to-Single Crystal Polymerization–Depolymerization and Spin Crossover Transitions.” Inorganic Chemistry, vol. 55, no. 12, May. 2016, pp. 5853-5861. https://doi.org/10.1021%2Facs.inorgchem.6b00140.