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Materials, volume 13, issue 24, pages 5689

Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties

Efimov Nikolay N. 1
Varaksina Evgenia A. 2
Taydakov Ilya V. 2, 4
Publication typeJournal Article
Publication date2020-12-13
Journal: Materials
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor3.4
ISSN19961944
PubMed ID:  33322115
General Materials Science
Abstract

Varying the temperature of the reaction of [{Cd(pfb)(H2O)4}+n·n(pfb)−], [Ln2(pfb)6(H2O)8]·H2O (Hpfb = pentafluorobenzoic acid), and 1,10-phenanthroline (phen) in MeCN followed by crystallization resulted in the isolation of two type of products: 1D-polymers [LnCd(pfb)5(phen)]n·1.5nMeCN (Ln = Eu (I), Gd (II), Tb (III), Dy (IV)) which were isolated at 25 °C, and molecular compounds [Tb2Cd2(pfb)10(phen)2] (V) formed at 75 °C. The transition from a molecular to a polymer structure becomes possible because of intra- and intermolecular interactions between the aromatic cycles of phen and pfb from neighboring tetranuclear Ln2Cd2 fragments. Replacement of cadmium with zinc in the reaction resulted in molecular compounds Ln2Zn2 [Ln2Zn2(pfb)10(phen)2]·4MeCN (Ln = Eu (VI), Tb (VIII), Dy (IX)) and [Gd2Zn2(pfb)10(H2O)2(phen)2]·4MeCN (VII). A new molecular EuCd complex [Eu2Cd2(pfb)10(phen)4]·4MeCN (X)] was isolated from a mixture of cadmium, zinc, and europium pentafluorobenzoates (Cd:Zn:Ln = 1:1:2). Complexes II-IV, VII and IX exhibit magnetic relaxation at liquid helium temperatures in nonzero magnetic fields. Luminescent studies revealed a bright luminescence of complexes with europium(III) and terbium(III) ions.

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Shmelev M. A. et al. Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties // Materials. 2020. Vol. 13. No. 24. p. 5689.
GOST all authors (up to 50) Copy
Shmelev M. A., Kiskin M. A., Voronina J. K., Babeshkin K. A., Efimov N. N., Varaksina E. A., Korshunov V. M., Taydakov I. V., Gogoleva N. V., Sidorov A. A., Eremenko I. L. Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties // Materials. 2020. Vol. 13. No. 24. p. 5689.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.3390/ma13245689
UR - https://doi.org/10.3390%2Fma13245689
TI - Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties
T2 - Materials
AU - Efimov, Nikolay N.
AU - Varaksina, Evgenia A.
AU - Taydakov, Ilya V.
AU - Gogoleva, Natalia V
AU - Sidorov, Alexey A
AU - Korshunov, Vladislav M
AU - Shmelev, M. A.
AU - Kiskin, Mikhail A.
AU - Voronina, Julia K.
AU - Babeshkin, Konstantin A
AU - Eremenko, Igor L.
PY - 2020
DA - 2020/12/13 00:00:00
PB - Multidisciplinary Digital Publishing Institute (MDPI)
SP - 5689
IS - 24
VL - 13
PMID - 33322115
SN - 1996-1944
ER -
BibTex |
Cite this
BibTex Copy
@article{2020_Shmelev
author = {Nikolay N. Efimov and Evgenia A. Varaksina and Ilya V. Taydakov and Natalia V Gogoleva and Alexey A Sidorov and Vladislav M Korshunov and M. A. Shmelev and Mikhail A. Kiskin and Julia K. Voronina and Konstantin A Babeshkin and Igor L. Eremenko},
title = {Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties},
journal = {Materials},
year = {2020},
volume = {13},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
month = {dec},
url = {https://doi.org/10.3390%2Fma13245689},
number = {24},
pages = {5689},
doi = {10.3390/ma13245689}
}
MLA
Cite this
MLA Copy
Shmelev, M. A., et al. “Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties.” Materials, vol. 13, no. 24, Dec. 2020, p. 5689. https://doi.org/10.3390%2Fma13245689.
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