Photophysical properties of Ir(III) complexes immobilized in MCM- 41 via templated synthesis.
ZANONI, Kassio P. S.; VILELA, Raquel R. C.; SILVA, Igor D. A.; IHA, Neyde Yukie Murakami; ECKERT, Hellmut; DE CAMARGO, Andrea Simone Stucchi.
ZANONI, Kassio P. S.; VILELA, Raquel R. C.; SILVA, Igor D. A.; IHA, Neyde Yukie Murakami; ECKERT, Hellmut; DE CAMARGO, Andrea Simone Stucchi.
 Abstract: In the search for understanding and improving the luminescence of optical materials based on Ir(III) complexes, three [Ir(C?N)2(dnbp)]+ (dnbp = 4,4'-dinonyl- 2,2'-bipyridine) emitters were immobilized in MCM-41 mesoporous nanoparticles. By taking advantage of the amphiphilic nature of [Ir(C?N)2(dnbp)]+, the complexes were mixed with an appropriate surfactant and the resulting micelles served as templates for the synthesis of mesoporous silica host materials in a one-step sol-gel route. The MCMencapsulated [Ir(C?N)2(dnbp)]+ complexes present intense emissions with prominent rigidochromic spectral changes that are substantially less affected by O2 as compared to methanolic solutions, with a thousand-fold decrease in quenching rate constants. These photophysical results points to a possible suitability of Ir(III)-complex-MCM-41 host-guest systems for possible future optoelectronic devices, rigidity optical sensors, or biological markers in different colors. | |
| Inorganic Chemistry |
| v. 58, n. 8, p. 4962-4971 - Ano: 2019 |
| Fator de Impacto: 4,700 |
| http://dx.doi.org/10.1021/acs.inorgchem.8b03633 |  @article={002938929,author = {ZANONI, Kassio P. S.; VILELA, Raquel R. C.; SILVA, Igor D. A.; IHA, Neyde Yukie Murakami; ECKERT, Hellmut; DE CAMARGO, Andrea Simone Stucchi.},title={Photophysical properties of Ir(III) complexes immobilized in MCM- 41 via templated synthesis},journal={Inorganic Chemistry},note={v. 58, n. 8, p. 4962-4971},year={2019}} |
