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

10Citations
Citations of this article
18Readers
Mendeley users who have this article in their library.

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 Tc ∼ 109 K, while the [Fe(i4tz)6](BF4)2 features a complete but rather gradual spin transition with T1/2 = 223 K. In the lack of suitable crystals of [Fe(intz)6](BF4)2 with n = 3 and 4, we synthesized crystals of [Ni(intz)6](BF4) 2 with n = 3 and 4, determined their X-ray crystal structures, and proved them to be homeotypic with the respective Fe-complexes by X-ray powder diffraction. DSC measurements showed an endothermic peak for the [Fe(i3tz) 6](BF4)2 around T = 260 K not corresponding to a spin transition and suggesting a structural phase transition at this temperature. A well-developed peak at Tp = 225 K matches the spin-transition temperature T1/2 = 223 K for [Fe(i4tz) 6](BF4)2. © 2012 Elsevier B.V. All rights reserved.

Cite

CITATION STYLE

APA

Hassan, N., Stelzl, J., Weinberger, P., Molnar, G., Bousseksou, A., Kubel, F., … Linert, W. (2013). Spectroscopic, structural and magnetic investigations of iron(II) complexes based on 1-isopropyl- and 1-isobutyl-substituted tetrazole ligands. Inorganica Chimica Acta, 396, 92–100. https://doi.org/10.1016/j.ica.2012.10.007

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free