Iron(II) complexes supported by pyrazolyl-substituted cyclopentadienyl ligands: synthesis and reactivity

Dalton Trans. 2022 Mar 15;51(11):4252-4256. doi: 10.1039/d2dt00199c.

Abstract

The preparation of bis(pyrazolyl)cyclopentadienyl iron complexes is described. Isopropyl substitution promotes solubility of the iron chloride complex that serves as a precursor to several derivatives through ligand exchange. Modification of the cyclopentadienyl substituent to replace a pyrazolyl unit with a phenyl group favors formation of a substituted ferrocene complex.