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Anion‐Responsive Molecules That Exhibit Switching of Two‐Photon Optical Properties
Author(s) -
Haketa Yohei,
Kamada Kenji,
Maeda Hiromitsu
Publication year - 2020
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.202000503
Subject(s) - covalent bond , ion , molecule , two photon excitation microscopy , fluorescence , excited state , chemical physics , photon , chemistry , metal ions in aqueous solution , cationic polymerization , photochemistry , materials science , nanotechnology , atomic physics , physics , optics , organic chemistry
Two‐photon‐excited fluorescent probes are important for two‐photon microscopy for biomedical studies. In contrast to the many examples of probes for cationic species, such as metal ions, there have been fewer reports on the control of two‐photon optical properties by anions because in such systems it is difficult to control the associated π‐electronic states. This Minireview summarizes anion‐responsive molecules that exhibit changes in two‐photon optical properties and describes their molecular design and anion‐response mechanisms, which are driven by changes in covalent bonds and noncovalent interactions. Results from a recent study of two‐photon systems, where geometries and optical properties are modulated by anion binding, are also discussed.