Lanthanide chains containing the naphthalenyl nitronyl nitroxide radical.

ABSTRACT: In this contribution we report the synthesis, structure and magnetic properties of a family of lanthanide-based one dimensional compounds [Ln(hfac)₃(NaphNN)] _n , where Ln^III = Gd (1), Dy(2), Tb(3) and NaphNN is the nitronyl nitroxide (NN) radical 2-(1'-naphthalenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-Imidazole-3-oxide-1-oxyl. The crystal structure reveals well isolated chains with a twofold helical axis. Magnetic investigation of the gadolinium(iii) chains showed relevant intrachain interactions between Gd-NN nearest neighbors and also Gd-Gd and NN-NN next nearest neighbors. The magnetic interaction parameters were obtained by fitting the data with a six membered ring model. The stronger antiferromagnetic interaction between NN radicals was co

SUBMITTER: Sarmiento CV 

PROVIDER: S-EPMC9072088 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature