Premium
Proton‐Coupled Self‐Assembly of a Porphyrin‐Naphthalenediimide Dyad
Author(s) -
Tu Siyu,
Kim Se Hye,
Joseph Jojo,
Modarelli David A.,
Parquette Jon R.
Publication year - 2013
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201300023
Subject(s) - porphyrin , nanorod , self assembly , proton , chemistry , photochemistry , spectroscopy , vesicle , crystallography , materials science , nanotechnology , membrane , organic chemistry , biochemistry , physics , quantum mechanics
The construction of an n–p heterojunction through the self‐assembly of a dyad based on tetraphenylporphyrin (TPP) and 1,4,5,8‐naphthalenedimide (NDI) ( 1 ) is described. Proton transfer from the lysine head group of 1 to the porphyrin ring occurs concomitantly with self‐assembly into 1D nanorods in CHCl 3 . TEM and AFM studies showed that the nanorods are formed by the lateral and vertical fusion of multilameller vesicles into networks and hollow ribbons, respectively. These intermediate structures transitioned to nanorods over the course of 4–6 days. Time‐resolved spectroscopy revealed that photoinduced charge separation occurs with rate constants that depend on the nature of the aggregation.