Biphenyl bridged hexadentate N6-ligands : a rigid ligand backbone for Fe(II) spin crossover complexes

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00004752
URN to cite this document: urn:nbn:de:bvb:703-epub-4752-8

Title data

Heider, Silvio ; Petzold, Holm ; Chastanet, Guillaume ; Schlamp, Stephan ; Rüffer, Tobias ; Weber, Birgit ; Létard, Jean-François:
Biphenyl bridged hexadentate N6-ligands : a rigid ligand backbone for Fe(II) spin crossover complexes.
In: Dalton Transactions. Vol. 42 (2013) Issue 24 . - pp. 8575-8584.
ISSN 1477-9226
DOI der Verlagsversion: https://doi.org/10.1039/c2dt32451b

Format: PDF Name: c2dt32451b.pdf Version: Published Version Available under License German copyright law. This contribution is freely accessible with the consent of the copyright holder on the basis of an (DFG-funded) alliance or national license. The document may be used free of charge for personal use. In addition, the reproduction, editing, distribution and any kind of exploitation require the written consent of the respective rights holder.

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Project information

Project title:	Project's official title Project's id Von partikulären Nanosystemen zur Mesotechnologie No information
Project financing:	Deutsche Forschungsgemeinschaft

Abstract

The novel hexadentate nitrogen based ligand N,N′-bis-(2-(1H-pyrazol-1-yl)pyridine-6-ylmethyl)-2,2′-biphenylenediamine (3) was synthesized and used for the preparation of iron Spin Crossover (SCO) complexes [Fe(3)][BF4]2 (4) and [Fe(3)][ClO4]2 (5), which differ only by the respective counter ion. These complex salts show different spin transition temperatures T1/2 (135 and 157 K, respectively). This effect was studied by the investigation of the solid state structure of different low- and high-spin isomers. All complexes of this series show closely related crystal packing regardless of the counter ion, metal (Zn/Fe) and spin state. The isomer exhibiting the lower transition temperature (4) was also investigated in respect to its photomagnetic behaviour. The LIESST process could be monitored for this complex, but no reverse-LIESST was observed. The relaxation of the photo-induced state occurs at ca. 80 K, showing a complex, three-state relaxation mechanism.

Further data

Item Type:	Article in a journal
Additional notes (visible to public):	ISI:000319555400010
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 Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie 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 Research Institutions Research Institutions > Collaborative Research Centers, Research Unit 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-4752-8
Date Deposited:	07 Sep 2020 07:34
Last Modified:	07 Sep 2020 07:34
URI:	https://epub.uni-bayreuth.de/id/eprint/4752

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