Organic Chemistry: Current Research
Open Access

Abstract

Synthesis and Structure of Homoleptic Iron Complex Bearing Pincer-Type 1,2,3-Triazol-5-ylidene

Haruka Iwasaki, Yuji Koga and Kouki Matsubara

Novel iron(II) complex bearing pyridine-bridged bis(1,2,3-triazol-5-ylidene) ligand was synthesized. During many attempts to obtain the compounds, we found generation of dicationic homoleptic iron(II) complex with two tridentate ligands. Analogous monocationic complex with only one tridentate ligand, which is an unstable intermediary complex during formation of the dicationic complex was detected. Structural identification of the homoleptic dicationic product revealed that octahedral geometry stabilized the iron complex and also π-stacking interaction exists between these two tridentate ligands.