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Novel Cu(II) complexes with NNO-Schiff base-like ligands : structures and magnetic properties

Title data

Dankhoff, Katja ; Weber, Birgit:
Novel Cu(II) complexes with NNO-Schiff base-like ligands : structures and magnetic properties.
In: CrystEngComm. Vol. 20 (February 2018) . - pp. 818-828.
ISSN 1466-8033
DOI: https://doi.org/10.1039/C7CE02007D

Abstract in another language

We present a series of six new tridentate Schiff base-like ligands, derived from 2-picolylamine, providing an NNO coordination sphere. Their corresponding Cu(II) complexes were synthesised with a range of varying counter anions (OAc−, NO3−, Cl−, I−, NCS−, and N3−). The results from single X-ray structure analyses of four ligands and 22 Cu(II) complexes are presented. The majority of the complexes crystallised as dimers with the anion bridging the Cu(II) centres in a μ-fashion; depending on the substituents at the ligand and the counter ion the formation of coordination polymers or mononuclear complexes is also possible. Temperature dependent magnetic measurements revealed that the exchange interactions between the Cu(II) centres depend on the nature of the bridging ligand (axial/equatorial), the Cu–X–Cu angle, and the distortion between a square pyramidal and a trigonal bipyramidal coordination sphere, explicable by assuming a superexchange.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry IV > Chair Anorganic 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 Anorganic Chemistry IV
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 06 Feb 2018 08:00
Last Modified: 06 Feb 2018 08:00
URI: https://eref.uni-bayreuth.de/id/eprint/42210