Unprecedented ferromagnetic Gd⋯nitronyl nitroxide coupling through a hydrogen bonding bridge†
Abstract
A novel lanthanide(III)–nitronyl nitroxide chain {[Gd(hfac)3(Nit-Ph-3,5-bIm)(H2O)]·C4H10O}n (1) was prepared and characterized. Strikingly, an unexpected ferromagnetic coupling between the Gd(III) ion and the nitroxide group mediated by hydrogen bonding has been observed for the first time.