Hiyam's Journal Update

Nice Mn metallocenes for someone interesting in doing Mn-55 NMR


Chemistry - A European Journal Volume: 12, Issue: 11 April 3, 2006

Structural and Magnetic Studies of the Tris(cyclopentadienyl)manganese(II) “Paddle-Wheel” Anions [Cp3−n(MeCp)nMn]− (n=0–3, MeCp=C5H4CH3, Cp=C5H5) II) “Paddle-Wheel” Anions [Cp3−n(MeCp)nMn]− (n=0–3, MeCp=C5H4CH3, Cp=C5H5)

Alvarez, Carmen Soria; Bashall, Alan; McInnes, Eric J. L.; Layfield, Richard A.; Mole, Richard A.; et. al. pp. 3053 - 3060

Abstract:The ion-contact complexes [{(h 5 -Cp)2 Mn(h 2 :h 5 -Cp)K}3 ]·0.5 THF (1 ·0.5 THF)and [{(h 2 -Cp)2 (h 2 ;h 5 -MeCp)MnK(thf)}]·2 THF (2 ·2 THF) and ion-separated complexes [Mg-(thf)6 ][(h 2 -Cp)3 Mn ]2 (3 ),[Mg(thf)6 ][(h 2 -Cp)(h 2 -MeCp)2 Mn)]2 ·0.5 THF (4 ·0.5 THF),[Mg(thf)6 ][(h 2 -MeCp)3 Mn)]2 ·0.5 THF (5 ·0.5 THF) and[Li([12 ]crown-4)]5 [(h -Cp)3 Mn ]5 (6 )(Cp =C5 H5 ,CpMe =C5 H4 CH3 ),have been prepared and structurally characterised. The effects of varying the Cp and CpMe ligands in complexes 1 –5 have been probed by variable-temperature magnetic susceptibility measurements and EPR spectroscopic studies.