[Co-II(phimpy)(2)](ClO4)(2) and [Co-II(ipimpy)(2)](ClO4)(2): New cobalt(II) spin crossover compounds, and the role of the ligand flexibility in spin transition behavior

Juhasz G; Hayami S; Inoue K; Maeda Y

Chemistry Letters, Vol.32, No.10, 882-883, 2003

DOI10.1246/cl.2003.882 Export Citation

[Co-II(phimpy)(2)](ClO4)(2) and [Co-II(ipimpy)(2)](ClO4)(2): New cobalt(II) spin crossover compounds, and the role of the ligand flexibility in spin transition behavior

Juhasz G, Hayami S, Inoue K, Maeda Y

New spin-crossover compounds, [Co(phimpy)(2)](ClO4)(2) (1) and [Co(ipimpy)(2)](ClO4)(2) (2) (phimpy = 2,6-bis(N-phenylformimidoyl)pyridine and ipimpy 2,6-bis(isopropyliminomethyl)pyridine) were prepared, and the crystal structures were determined. The magnetic susceptibility measurements showed gradual transition for both compounds, despite the strong intermolecular pi stacking in 1.