Details

Autor(en) / Beteiligte

• Leckie, Dominique
• Stephaniuk, Nadia T
• Arauzo, Ana
• Campo, Javier
• Rawson, Jeremy M

Titel

Exploring through-bond and through-space magnetic communication in 1,3,2-dithiazolyl radical complexes

Ist Teil von

• Chemical communications (Cambridge, England), 2019-08, Vol.55 (66), p.9849-9852

Ort / Verlag

England: Royal Society of Chemistry

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Reaction of the methyl-benzodithiazolyl radical (MBDTA) with M(hfac) 2 complexes (M = Mn, Co, Zn) affords the complexes M(hfac) 2 (MBDTA) 2 . Strong antiferromagnetic exchange interactions are observed between M( ii ) ions and the two S = 1/2 radicals (M = Mn, Co), whereas weak antiferromagnetic interactions are observed between radicals when using the diamagnetic Zn( ii ) ion. Strong intermolecular exchange coupling is also evident in Mn(hfac) 2 (MBDTA) 2 and attributed to π*-π* contacts between MBDTA radicals which are absent for the Co and Zn derivatives. Coordination of the dithiazolyl radical MBDTA leads to strong intramolecular metal-radical magnetic exchange but the strength of the intermolecular exchange coupling is strongly dependent on molecular packing.