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Discrete Fe II Spin‐Crossover Complexes of 2,2′‐Dipyridylamino‐Substituted s ‐Triazine Ligands with Phenoxo, Cyanophenoxo and Dibenzylamino Functionalities
Author(s) -
Scott Hayley S.,
Ross Tamsyn M.,
Phonsri Wasinee,
Moubaraki Boujemaa,
Chastanet Guillaume,
Létard JeanFrançois,
Batten Stuart R.,
Murray Keith S.
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201402972
Subject(s) - chemistry , crystallography , stacking , spin crossover , excited state , triazine , solvent , single crystal , stereochemistry , organic chemistry , atomic physics , physics
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.