A monometallic lanthanide bis(methanediide) single molecule magnet with a large energy barrier and complex spin relaxation behaviour.

ABSTRACT: We report a dysprosium(iii) bis(methanediide) single molecule magnet (SMM) where stabilisation of the highly magnetic states and suppression of mixing of opposite magnetic projections is imposed by a linear arrangement of negatively-charged donor atoms supported by weak neutral donors. Treatment of [Ln(BIPM^TMS)(BIPM^TMSH)] [Ln = Dy, 1Dy; Y, 1Y; BIPM^TMS = {C(PPh₂NSiMe₃)₂}^2-; BIPM^TMSH = {HC(PPh₂NSiMe₃)₂}^-] with benzyl potassium/18-crown-6 ether (18C6) in THF afforded [Ln(BIPM^TMS)₂][K(18C6)(THF)₂] [Ln = Dy, 2Dy; Y, 2Y]. AC magnetic measurements of 2Dy in zero DC field show temperature- and frequen

SUBMITTER: Gregson M 

PROVIDER: S-EPMC5950554 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature