REACTIVITY OF COORDINATIVELY UNSATURATED TRIVALENT CHROMIUM COMPLEXESWITH SULFUR - PREPARATION OF NOVEL SULFIDE-BRIDGED DINUCLEAR CR-IV DERIVATIVES

Citation
D. Reardon et al., REACTIVITY OF COORDINATIVELY UNSATURATED TRIVALENT CHROMIUM COMPLEXESWITH SULFUR - PREPARATION OF NOVEL SULFIDE-BRIDGED DINUCLEAR CR-IV DERIVATIVES, Chemistry, 3(9), 1997, pp. 1482-1488
Citations number
70
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry
Journal title
Chemistry → ACNP
ISSN journal
0947-6539
Volume
3
Issue
9
Year of publication
1997
Pages
1482 - 1488
Database
ISI
SICI code
0947-6539(1997)3:9<1482:ROCUTC>2.0.ZU;2-J
Abstract
The homoleptic Cr-III amide complexes [(RR'N)(3)Cr] [R = R' = cyclohex yl (1a); R = adamantyl. R' = 3,5-Me2Ph (1b)] were prepared and charact erized. Reactions with elemental sulfur produced the corresponding din uclear complexes [{(RR'N)(2)Cr}(2)(mu-S)(2)] (2) through loss of one a mide group, These two new dinuclear Cr-IV species are paramagnetic wit h magnetic moments lower than expected for the d(2) electronic configu ration of Cr-IV. Magnetic measurements and ab initio calculations were carried out to elucidate the nature of magnetic interactions in these dinuclear systems, The molecular structures of 1a and 2a were elucida ted by X-ray crystal structures.