Structure and characterization of physicochemical and magnetic properties of new complex containing monobridged oxygen copper(II) dinuclear cation

Aleksandra Tesmar , Maciej Witwicki , Dariusz Wyrzykowski , Artur Sikorski , Dagmara Jacewicz , Joanna Drzeżdżon , Lech Chmurzyński

Abstract

The crystal and molecular structure of the new copper(II) complex with nitrilotriacetate (nta) and 1,10-phenanthroline (phen) ligands of the [Cu(phen)2Cu(nta)(phen)]2[Cu(Hnta)2]·20H2O molecular formula has been determined. The compound comprises the dianionic mononuclear entity, [Cu(Hnta)2]2−, and two monocationic dinuclear units, [Cu(phen)2Cu(nta)(phen)]+, in which the Cu(II) ions are bridged by one oxygen atom of the nta ligand in the rarely found μ1,1–O bridging mode. The complex was characterized by spectroscopic (IR, FIR and EPR) methods and magnetic measurements as well as thermogravimetry (TG). The magnetic measurements revealed an antiferromagnetic coupling between the Cu(II) ions in the dinuclear unit. Based on the experimental data supported by density functional theory (DFT) calculations the correlation between the coordination mode of the Cu(II) ions and magnetic properties of the compound studied has been discussed.
Author Aleksandra Tesmar PFZK
Aleksandra Tesmar,,
- Laboratory of Physicochemistry of Coordination Complexes
, Maciej Witwicki
Maciej Witwicki,,
-
, Dariusz Wyrzykowski PBChN
Dariusz Wyrzykowski,,
- Pracownia Biologicznej Chemii Nieorganicznej
, Artur Sikorski PK
Artur Sikorski,,
- Pracownia Krystalochemii
, Dagmara Jacewicz PFZK
Dagmara Jacewicz,,
- Laboratory of Physicochemistry of Coordination Complexes
, Joanna Drzeżdżon PFZK
Joanna Drzeżdżon,,
- Laboratory of Physicochemistry of Coordination Complexes
, Lech Chmurzyński PFZK
Lech Chmurzyński,,
- Laboratory of Physicochemistry of Coordination Complexes
Journal seriesPolyhedron, ISSN 0277-5387
Issue year2017
Vol127
Pages144-152
Publication size in sheets0.5
Keywords in Englishcopper, nitrilotriacetate, structure elucidation, magnetic measurements, density functional calculations
DOIDOI:10.1016/j.poly.2017.02.003
URL https://doi.org/10.1016/j.poly.2017.02.003
Languageen angielski
Score (nominal)30
ScoreMinisterial score = 30.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.926 (2) - 2016=1.79 (5)
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