Synthesis and magnetic properties of a new complex made up of Mn(hfac)(2) and a radical with a triplet ground state

Authors
Kumagai, H Hosokoshi, Y Markosyan, AS Inoue, K
Citation
H. Kumagai et al., Synthesis and magnetic properties of a new complex made up of Mn(hfac)(2) and a radical with a triplet ground state, NEW J CHEM, 24(7), 2000, pp. 537-539
Citations number
14
Categorie Soggetti
Chemistry
Journal title
NEW JOURNAL OF CHEMISTRY
ISSN journal
11440546 → ACNP
Volume
24
Issue
7
Year of publication
2000
Pages
537 - 539
Database
ISI
SICI code
1144-0546(200007)24:7<537:SAMPOA>2.0.ZU;2-B
Abstract
A new metal-radical complex of Mn(II) made up of Mn(hfac)(2) and the radica l 4-N-tert-butylaminoxyl-4'-(1-oxyl-3-oxide-4,4,5,5-tetramethylimidazolin-2 -yl) biphenyl (BIPNNNO) was synthesized. The X-ray single crystal structura l analysis revealed that the complex consists of discrete molecules [Mn(hfa c)(2)] (BIPNNNO)(2). The magnetic characteristics of this complex were stud ied and the Mn-radical and intraradical exchange integrals were evaluated: -135 +/- 10 and 72 +/- 5 K, respectively. These values are compared with th ose of complexes of Mn(hfac)(2) with different aminoxyl polyradicals.