Solvothermal Synthesis of [Cr₇ S₈ (en)₈ Cl₂ ]Cl₃  ⋅ 2H₂ O with Magnetically Frustrated [Cr₇ S₈ ]⁵⁺ Double-Cubes.

ABSTRACT: A novel transition metal chalcohalide [Cr₇ S₈ (en)₈ Cl₂ ]Cl₃  ⋅ 2H₂ O, with [Cr₇ S₈ ]⁵⁺ dicubane cationic clusters, has been synthesized by a low temperature solvothermal method, using dimethyl sulfoxide (DMSO) and ethylenediamine (en) solvents. Ethylenediamine ligand exhibits bi- and monodentate coordination modes; in the latter case ethylenediamine coordinates to Cr atoms of adjacent clusters, giving rise to a 2D polymeric structure. Although magnetic susceptibility shows no magnetic ordering down to 1.8 K, a highly negative Weiss constant, θ=-224(2) K, obtained from Curie-Weiss fit of inverse susceptibility, suggests strong antiferromagnetic (AFM) interactions between S=3/2 Cr(III) centers

SUBMITTER: Gamage EH 

PROVIDER: S-EPMC9300142 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature