Discrete Fe II Spin‐Crossover Complexes of 2,2′‐Dipyridylamino‐Substituted s ‐Triazine Ligands with Phenoxo, Cyanophenoxo and Dibenzylamino Functionalities

Four 2,2′‐dipyridylamino‐ s ‐triazine‐substituted ligands, each of which incorporate different aromatic substituents (phenoxo, 4‐CN‐phenoxo and benzylamino) with different degrees of bulk and flexibility, have been formed and incorporated into a number of mononuclear Fe II complexes of type trans ‐[...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2015-02, Vol.2015 (5), p.763-777
Main Authors: Scott, Hayley S., Ross, Tamsyn M., Phonsri, Wasinee, Moubaraki, Boujemaa, Chastanet, Guillaume, Létard, Jean‐François, Batten, Stuart R., Murray, Keith S.
Format: Article
Language:English
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Summary:Four 2,2′‐dipyridylamino‐ s ‐triazine‐substituted ligands, each of which incorporate different aromatic substituents (phenoxo, 4‐CN‐phenoxo and benzylamino) with different degrees of bulk and flexibility, have been formed and incorporated into a number of mononuclear Fe II complexes of type trans ‐[Fe II (L) 2 (NCX) 2 ] · solvent (in which X = S, Se and BH 3 ). These ligands were designed to promote π–π stacking between complexes. The complexes reported have been comprehensively characterised using single‐crystal diffraction techniques in combination with magnetic susceptibility measurements. Light‐induced excited spin‐state trapping (LIESST) measurements have been performed on selected complexes. Light irradiation has shown the occurrence of a reversible photoswitching process at low temperature.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201402972