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Imine‐Functionalized Triazatriangulenium Platforms: Towards an Artificial Ciliated Epithelium
Author(s) -
Hammerich Melanie,
Rusch Talina,
Krekiehn Nicolai R.,
Bloedorn Andreas,
Magnussen Olaf M.,
Herges Rainer
Publication year - 2016
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.201600147
Subject(s) - isomerization , imine , chemistry , monolayer , photochemistry , irradiation , crystallography , catalysis , organic chemistry , biochemistry , physics , nuclear physics
Triazatriangulenium (TATA) platforms have been used to prepare highly ordered, self‐assembled monolayers of free‐ and vertically standing imines on Au(111) surfaces. Upon irradiation, the imines undergo trans – cis isomerization and a fast thermal reaction ( t 1/2 =0.58 s at 20 °C) back to the more stable trans form. It is known that the photochemical reaction proceeds through rotation of the C=N bond and the thermochemical reaction through inversion at the N atom. The imine motors, therefore, should be able to induce a net displacement of particles above the surface similar to cilia epithelia in nature.