Influence of perhalophenyl groups in the TADF mechanism of diphosphino gold(I) complexes

New perhalophenyl three-coordinated gold(i) complexes using the chelate ligand 1,2-bis(diphenyl-phosphino)benzene (dppBz) and [AuR(tht)] (R = C6F5 (1), o-C6BrF4 (2), p-C6BrF4 (3), o-C6F4I (4), p-C6F4I (5); tht = tetrahydrothiophene) have been prepared. The crystal structures of compounds 1 and 2 con...

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Published in:Journal of materials chemistry Vol. 10, № 12. P. 4894-4904
Other Authors: Soldevilla, Inés, García-Camacho, Aimara, Nasibullin, Rinat T., Olmos, M. Elena, Monge, Miguel, Sundholm, Dage, Valiev, Rashid R., López-de-Luzuriaga, José M., Rodríguez-Castillo, María
Format: Article
Language:English
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Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002957
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245 1 0 |a Influence of perhalophenyl groups in the TADF mechanism of diphosphino gold(I) complexes  |c I. Soldevilla, A. García-Camacho, R. T. Nasibullin [et al.] 
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520 3 |a New perhalophenyl three-coordinated gold(i) complexes using the chelate ligand 1,2-bis(diphenyl-phosphino)benzene (dppBz) and [AuR(tht)] (R = C6F5 (1), o-C6BrF4 (2), p-C6BrF4 (3), o-C6F4I (4), p-C6F4I (5); tht = tetrahydrothiophene) have been prepared. The crystal structures of compounds 1 and 2 consist of distorted three-coordinated Au(i) complexes displaying different Au-P distances at the same gold atom. The complexes show intense photoluminescent emission in the solid state at room temperature (RT) and at 77 K. The study of the dependence of the emission lifetime with temperature suggests the existence of thermally activated delayed fluorescence (TADF) processes at RT. We have computed the rate constants for intersystem crossing and reverse intersystem crossing of the photophysical processes through first-principle calculations, supporting the experimental observations with very good agreement. 
653 |a хелатные комплексы 
653 |a лиганды 
653 |a флуоресценция 
655 4 |a статьи в журналах  |9 887936 
700 1 |a Soldevilla, Inés  |9 887935 
700 1 |a García-Camacho, Aimara  |9 887937 
700 1 |a Nasibullin, Rinat T.  |9 498796 
700 1 |a Olmos, M. Elena  |9 887938 
700 1 |a Monge, Miguel  |9 887939 
700 1 |a Sundholm, Dage  |9 137316 
700 1 |a Valiev, Rashid R.  |9 89181 
700 1 |a López-de-Luzuriaga, José M.  |9 887940 
700 1 |a Rodríguez-Castillo, María  |9 887941 
773 0 |t Journal of materials chemistry  |d 2022  |g Vol. 10, № 12. P. 4894-4904  |x 2050-7526 
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