Hexakis (propargyl-1H-tetrazole) Iron(II) X₂ [X = BF₄,ClO₄]-spin switchable complexes with functionalization potential and the myth of the explosive SCO compound

Author(s)

Marco Seifried, Christian Knoll, Gerald Giester, Michael Reissner, Danny Müller, Peter Weinberger

Abstract

Spin crossover complexes with ligands suitable for further functionalization could allow for an easy access to multifunctional switchable materials. Within this context, we recently characterized the Fe(II) SCO complexes of propargyl-1H-tetrazole. Although the design of the ligand seems similar to the one of the well-known propyl-1H-tetrazole, the spin transition behavior is notably different. Both compounds reported herein feature a gradual spin transition with a T-1/2 shifted to lower temperatures, compared to the more flexible propyl-ligand. Due to the potential instable structure of these compounds, especially of the perchlorate complex, we also investigated our compounds with regard to their sensitivity against thermal and mechanical stress. These experiments led to the conclusion that the proper handling includes no enhanced risk of explosive decomposition.

Organisation(s)

Department of Mineralogy and Crystallography

External organisation(s)

Technische Universität Wien

Journal

Magnetochemistry

Volume

2

No. of pages

13

ISSN

2312-7481

DOI

https://doi.org/10.3390/magnetochemistry2010012

Publication date

02-2016

Peer reviewed

Yes

Austrian Fields of Science 2012

104011 Materials chemistry, 105113 Crystallography

Keywords

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Chemistry (miscellaneous), Materials Chemistry

Portal url

https://ucrisportal.univie.ac.at/en/publications/hexakis-propargyl1htetrazole-ironii-x2-x--bf4clo4spin-switchable-complexes-with-functionalization-potential-and-the-myth-of-the-explosive-sco-compound(b5e72c86-fcd3-4506-921e-735acdda43cd).html