Strong antiferromagnetism in isolated anionic dicopper(II) methanoato paddle-wheel complex
Summary: A new ionic compound (C5H6NO)2 [Cu2 (μ-O2 CH)4 (O2CH)2], 1 formed of 4-hydroxypyridinium cations and a complex anion was synthesized. The anion is a paddle-wheel dicoppercarboxylate complex with four syn,syn-bridging and two axial anionic methanoato ligands. The XRD structure determination...
| Permalink: | http://skupni.nsk.hr/Record/nsk.NSK01000734650/Details |
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| Matična publikacija: |
Croatica chemica acta 82 (2009), 2 ; str. 463-467 |
| Glavni autor: | Kozlevčar, Bojan (-) |
| Ostali autori: | Kovšca, Igor (-), Jagličić, Zvonko, Pevec, Andrej, Kitanovski, Nives, Strauch, Peter, Šegedin, Primož |
| Vrsta građe: | Članak |
| Jezik: | eng |
| Predmet: | |
| Online pristup: |
Croatica Chemica Acta |
| LEADER | 02240caa a2200337 ir4500 | ||
|---|---|---|---|
| 001 | NSK01000734650 | ||
| 003 | HR-ZaNSK | ||
| 005 | 20130430093810.0 | ||
| 007 | ta | ||
| 008 | 100426s2009 ci ||| ||eng | ||
| 035 | |9 (HR-ZaNSK)737272 | ||
| 035 | |a (HR-ZaNSK)000734650 | ||
| 040 | |a HR-ZaNSK |b hrv |c HR-ZaNSK |e ppiak | ||
| 042 | |a croatica | ||
| 080 | |a 54 |2 MRF 1998. | ||
| 100 | 1 | |a Kozlevčar, Bojan | |
| 245 | 1 | 0 | |a Strong antiferromagnetism in isolated anionic dicopper(II) methanoato paddle-wheel complex / |c Bojan Kozlevčar, Igor Kovšca, Zvonko Jagličić, Andrej Pevec, Nives Kitanovski, Peter Strauch, and Primož Šegedin. |
| 300 | |b Ilustr. | ||
| 504 | |a Bibliografija: 25 jed | ||
| 520 | 8 | |a Summary: A new ionic compound (C5H6NO)2 [Cu2 (μ-O2 CH)4 (O2CH)2], 1 formed of 4-hydroxypyridinium cations and a complex anion was synthesized. The anion is a paddle-wheel dicoppercarboxylate complex with four syn,syn-bridging and two axial anionic methanoato ligands. The XRD structure determination 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 | |
| 653 | 0 | |a Paddle-wheel kompleks |a Antiferomagnetizam |a Molekulska struktura |a Rentgenska difrakcija | |
| 700 | 1 | |a Kovšca, Igor | |
| 700 | 1 | |a Jagličić, Zvonko | |
| 700 | 1 | |a Pevec, Andrej | |
| 700 | 1 | |a Kitanovski, Nives | |
| 700 | 1 | |a Strauch, Peter | |
| 700 | 1 | |a Šegedin, Primož | |
| 773 | 0 | |t Croatica chemica acta |x 0011-1643 |g 82 (2009), 2 ; str. 463-467 |w nsk.(HR-ZaNSK)000001621 | |
| 981 | |b B02/09 | ||
| 998 | |a Luko100426 |c vol2o130430 | ||
| 856 | 4 | 2 | |u http://hrcak.srce.hr/cca |y Croatica Chemica Acta |