Piezochromic and thermochromic behaviour of ternary diimine–cyanide–Iron(II) and –Iron(III) complexes

Abstract

Solvent, pressure, and temperature effects on charge-transfer spectra of several iron(II)– and iron(III)–diimine–cyanide complexes are described. The effects for MLCT and LMCT bands are in opposite direction; the solvatochromic, piezochromic, and thermochromic behaviour of the iron(II) complexes parallels that of molybdenum(0)–carbonyl–diimine complexes.