MAGNETIC SPIN-EXCHANGE INTERACTIONS BETWEEN SEVERAL METAL CENTERS IN PARAMAGNETIC-COMPLEXES WITH NEW POLYNUCLEATING BRIDGING LIGANDS

Authors
AMOROSO AJ MAHER JP MCCLEVERTY JA WARD MD
Citation
Aj. Amoroso et al., MAGNETIC SPIN-EXCHANGE INTERACTIONS BETWEEN SEVERAL METAL CENTERS IN PARAMAGNETIC-COMPLEXES WITH NEW POLYNUCLEATING BRIDGING LIGANDS, Journal of the Chemical Society, Chemical Communications, (10), 1994, pp. 1273-1275
Citations number
34
Categorie Soggetti
Chemistry
Journal title
Journal of the Chemical Society, Chemical Communications → ACNP
ISSN journal
00224936
Issue
10
Year of publication
1994
Pages
1273 - 1275
Database
ISI
SICI code
0022-4936(1994):10<1273:MSIBSM>2.0.ZU;2-M
Abstract
The polynucleating bridging ligands L(1) and H(3)L(2) were simply prep ared via a Heck coupling of 4-vinylpyridine or 4-methoxystyrene with 1 ,3,5-tribromobenzene; in the trinuclear complexes of L(1) and L(2) wit h a paramagnetic (Mo(NO)(BH(C(3)HN(2)Me(2)-3,5)(3))Cl) moiety [BH(C(3) HN(2)Me(2)-3,5)(3) = tris(3,5-dimethylpyrazol-1-yl) hydroborate] at ea ch binding site the EPR spectra demonstrate that all three unpaired el ectrons are in 'fast exchange' between all three metal centres