Influence of CF₃ Substituents on the Spin Crossover Behavior of Iron(II) Coordination Polymers with Schiff Base-like Ligands

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005043
URN to cite this document: urn:nbn:de:bvb:703-epub-5043-6

Title data

Kurz, Hannah ; Sander, Joan ; Weber, Birgit:
Influence of CF₃ Substituents on the Spin Crossover Behavior of Iron(II) Coordination Polymers with Schiff Base-like Ligands.
In: Zeitschrift für anorganische und allgemeine Chemie. Vol. 646 (2020) Issue 13 . - pp. 800-807.
ISSN 1521-3749
DOI der Verlagsversion: https://doi.org/10.1002/zaac.201900354

	Format: PDF Name: zaac.201900354.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
	Download (986kB)

Abstract

A Schiff base‐like ligand bearing CF3 substituents was synthesized and converted to iron(II) coordination polymers [{FeL(Lax)}n] using five different bridging ligands Lax. The structure of the coordination polymers was investigated using powder X‐ray diffraction and single‐crystal X‐ray diffraction in the case of [{FeL(bipy)}n]. The later revealed an untypical ABAB pattern of alternating equatorial ligands rotated by 180° with regard to each other along the chain. The temperature‐dependent magnetic behavior was investigated with a SQUID magnetometer and the spin states at room temperature were confirmed by 57Fe‐Mössbauer spectroscopy. Three out of five coordination polymers show spin crossover behavior in the temperature range between 50 and 400 K with different kind of curve progressions (abrupt, gradual, step‐wise). The other two coordination polymers are either fully highspin or fully low spin.

Further data

Item Type:	Article in a journal
Keywords:	Schiff base; Iron; Spin crossover; Magnetic properties
DDC Subjects:	500 Science > 540 Chemistry
Institutions of the University:	Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Inorganic Chemistry IV - Univ.-Prof. Dr. Birgit Weber Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-5043-6
Date Deposited:	14 Sep 2020 07:27
Last Modified:	14 Sep 2020 07:27
URI:	https://epub.uni-bayreuth.de/id/eprint/5043

Download Statistics

Download Statistics

Download Statistics

Downloads

Downloads per month over past year