A rare example of a compact heteroleptic cyclometalated iridium() complex demonstrating well-separated dual emission

A series of [Ir(C^N) 2 (NN)][PF 6 ] complexes in which NN is 5-(4-ethynylphenyl)-2,2′-bipyridine has been synthesized and characterized by spectroscopic methods. All novel complexes exhibit unique singlet-triplet dual emission in solution with two well-separated emission bands. The mechanism of dual...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2018, Vol.47 (22), p.7578-7586
Main Authors: Gitlina, Anastasia Yu, Ivonina, Maria V, Sizov, Vladimir V, Starova, Galina L, Pushkarev, Anatoly P, Volyniuk, Dmytro, Tunik, Sergey P, Koshevoy, Igor O, Grachova, Elena V
Format: Article
Language:English
Subjects:
Iridium
Iridium compounds
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Summary:A series of [Ir(C^N) 2 (NN)][PF 6 ] complexes in which NN is 5-(4-ethynylphenyl)-2,2′-bipyridine has been synthesized and characterized by spectroscopic methods. All novel complexes exhibit unique singlet-triplet dual emission in solution with two well-separated emission bands. The mechanism of dual emission has been elucidated on the basis of experimental data and confirmed by TDDFT calculations. Cationic heteroleptic Ir( iii ) complexes [Ir(C^N) 2 (NN)][PF 6 ] exhibit unique singlet-triplet dual emission in solution with two well separated emission bands.
ISSN:1477-9226
1477-9234
DOI:10.1039/c8dt01336e