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Exploring Tetrathiafulvalene–Carbon Nanodot Conjugates in Charge Transfer Reactions
Author(s) -
FerrerRuiz Andrés,
Scharl Tobias,
Haines Philipp,
RodríguezPérez Laura,
Cadranel Alejandro,
Herranz M. Ángeles,
Guldi Dirk M.,
Martín Nazario
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201709561
Subject(s) - tetrathiafulvalene , nanodot , photochemistry , materials science , nanotechnology , fullerene , chemistry , chemical engineering , organic chemistry , molecule , engineering
Carbon nanodots (CNDs) were synthesized using low‐cost and biocompatible starting materials such as citric acid/urea, under microwave irradiation, and constant pressure conditions. The obtained pressure‐synthesized CNDs (pCNDs) were covalently modified with photo‐ and electroactive π‐extended tetrathiafulvalene (exTTF) by means of a two‐step esterification reaction, affording pCND‐exTTF. The electronic interactions between the pCNDs and exTTF were investigated in the ground and excited states. Ultrafast pump–probe experiments assisted in corroborating that charge separation governs the deactivation of photoexcited pCND‐exTTF. These size‐regular structures, as revealed by AFM, are stable electron donor–acceptor conjugates of interest for a better understanding of basic processes such as artificial photosynthesis, catalysis, and photovoltaics, involving readily available fluorescent nanodots.