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Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex

Bojan Kozlevčar ; Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
Igor Kovšca ; Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
Zvonko Jagličić ; Institute of Mathematics, Physics and Mechanics & Faculty of Civil and Geodetic Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia
Andrej Pevec ; Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
Nives Kitanovski ; Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
Peter Strauch ; Institute of Chemistry, University of Potsdam, 14476 Golm, Germany
Primož Šegedin ; Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia

Puni tekst: engleski, pdf (1 MB) str. 463-467 preuzimanja: 529* citiraj
APA 6th Edition
Kozlevčar, B., Kovšca, I., Jagličić, Z., Pevec, A., Kitanovski, N., Strauch, P. i Šegedin, P. (2009). Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex. Croatica Chemica Acta, 82 (2), 463-467. Preuzeto s https://hrcak.srce.hr/39693
MLA 8th Edition
Kozlevčar, Bojan, et al. "Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex." Croatica Chemica Acta, vol. 82, br. 2, 2009, str. 463-467. https://hrcak.srce.hr/39693. Citirano 07.04.2020.
Chicago 17th Edition
Kozlevčar, Bojan, Igor Kovšca, Zvonko Jagličić, Andrej Pevec, Nives Kitanovski, Peter Strauch i Primož Šegedin. "Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex." Croatica Chemica Acta 82, br. 2 (2009): 463-467. https://hrcak.srce.hr/39693
Harvard
Kozlevčar, B., et al. (2009). 'Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex', Croatica Chemica Acta, 82(2), str. 463-467. Preuzeto s: https://hrcak.srce.hr/39693 (Datum pristupa: 07.04.2020.)
Vancouver
Kozlevčar B, Kovšca I, Jagličić Z, Pevec A, Kitanovski N, Strauch P i sur. Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex. Croatica Chemica Acta [Internet]. 2009 [pristupljeno 07.04.2020.];82(2):463-467. Dostupno na: https://hrcak.srce.hr/39693
IEEE
B. Kozlevčar, et al., "Strong Antiferromagnetism in Isolated Anionic Dicopper(II) Methanoato Paddle-wheel Complex", Croatica Chemica Acta, vol.82, br. 2, str. 463-467, 2009. [Online]. Dostupno na: https://hrcak.srce.hr/39693. [Citirano: 07.04.2020.]

Sažetak
A new ionic compound (C5H6NO)2[Cu2(μ-O2CH)4(O2CH)2], 1 formed of 4-hydroxy-pyridinium cations and a complex anion was synthesized. The anion is a paddle-wheel dicopper carboxy-late complex with four syn,syn-bridging and two axial anionic methanoato ligands. The XRD structure de-termination of 1 reveals that the molecular structure is stabilized by two H-bonds between the cations and the axial paddle-wheel anions (N–H···O 2.755(3), O–H···O 2.489(2) Å). The compound exhibits a very strong (2J = 500 cm–1) intra-binuclear antiferromagnetic interaction noticed already at room temperature attributed to the methanoato intra-binuclear bridges. The typical EPR S = 1 spin system signals of the dicopper paddle-wheel complexes at 90 and 450–700 mT are found in the room temperature spectrum, but they are poorly seen in the 110 K spectrum. These signals are of very low intensity and are accompanied by a dominant signal at 320 mT, all closely related to a very strong antiferromagnetic interaction present in 1.

Ključne riječi
copper(II); methanoate; 4-hydroxypyridinium; dimer; antiferromagnet

Hrčak ID: 39693

URI
https://hrcak.srce.hr/39693

Posjeta: 807 *