A novel two-step Fe-Au type spin-crossover behavior in a Hofmann-type coordination complex {Fe(4-methylpyrimidine)2[Au(CN)2]2}

Kosuke Kitase; Takafumi Kitazawa

doi:10.1039/d0dt01681k

A novel two-step Fe-Au type spin-crossover behavior in a Hofmann-type coordination complex {Fe(4-methylpyrimidine)₂[Au(CN)₂]₂}

Dalton Trans. 2020 Sep 15;49(35):12210-12214. doi: 10.1039/d0dt01681k.

Authors

Kosuke Kitase¹, Takafumi Kitazawa

Affiliation

¹ Department of Chemistry, Toho University, Chiba 274-8510, Japan. kitazawa@chem.sci.toho-u.ac.jp.

PMID: 32608445
DOI: 10.1039/d0dt01681k

Abstract

A Hofmann-type two-step spin-crossover (SCO) complex with a pyrimidine derivative ligand, Fe(4-methylpyrimidine)2[Au(CN)2]2, was synthesized, and this complex shows a two-step SCO phenomenon in the intermediate state. Symmetry breaking also occurs in the intermediate state. These results reveal three spin states within the complex for high-spin (HS), HS0.5LS0.5, and low-spin (LS).