Spectroscopic, structural and magnetic investigations of iron(II) complexes based on 1-isopropyl- and 1-isobutyl-substituted tetrazole ligands.

ABSTRACT: Two partly new [Fe(intz)₆](BF₄)₂ complexes with n = 3 and 4 (i3tz = 1-isopropyl-1H-tetrazole, i4tz = 1-isobutyl-1H-tetrazole) were synthesized and characterised by X-ray powder diffraction, magnetic susceptibility measurements, vibrational, electronic and ⁵⁷Fe-Mößbauer spectroscopy as well as DSC. The [Fe(i3tz)₆](BF₄)₂ complex was re-investigated and shows an incomplete spin transition at T_c ∼ 109 K, while the [Fe(i4tz)₆](BF₄)₂ features a complete but rather gradual spin transition with T_½ = 223 K. In the lack of suitable crystals of [Fe(intz)₆](BF₄)₂

SUBMITTER: Hassan N 

PROVIDER: S-EPMC3616971 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature