Corrole-gold nanoparticles: Synthesis, ground and excited state solvation

The in situ preparation and the full spectroscopic characterization of corrole - gold nanoparticles (AuTPFCS) are reported. The synthetic approach to these nanoconjugates involved the reaction of a mercaptocorrole (TPFCSH) with chloroauric acid under reductive conditions. Fluorescence quantum yields...

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Bibliographic Details
Published in:Dyes and pigments 2022-05, Vol.201, p.110108, Article 110108
Main Authors: Barata, Joana F.B., Serra, Vanda Vaz, Daniel-da-Silva, Ana L., Neves, M. Graça P.M. S., Costa, Sílvia M.B., Cavaleiro, José A.S., Trindade, Tito
Format: Article
Language:English
Subjects:
Corrole
Gold nanoparticles
Nanoconjugates
Photophysical properties
Solvation
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Summary:The in situ preparation and the full spectroscopic characterization of corrole - gold nanoparticles (AuTPFCS) are reported. The synthetic approach to these nanoconjugates involved the reaction of a mercaptocorrole (TPFCSH) with chloroauric acid under reductive conditions. Fluorescence quantum yields and time resolved lifetimes showed a significant quenching of the mercaptocorrole after its covalent coupling to the gold nanoparticles in acetonitrile and in toluene. Irradiated samples of AuTPFCS with a Nd:YAG laser in toluene solution revealed the distribution of larger nanoparticles from 3.1 to 11 nm viewed by TEM images. The in situ synthesis and ground and excited state of corrole-gold nanoparticles (AuTPFCS) are reported. [Display omitted]
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2022.110108