Anion-Responsive Molecules That Exhibit Switching of Two-Photon Optical Properties

Yohei Haketa; Kenji Kamada; Hiromitsu Maeda

doi:10.1002/cplu.202000503

Anion-Responsive Molecules That Exhibit Switching of Two-Photon Optical Properties

Chempluschem. 2020 Aug;85(8):1719-1729. doi: 10.1002/cplu.202000503.

Authors

Yohei Haketa¹, Kenji Kamada², Hiromitsu Maeda¹

Affiliations

¹ Department of Applied Chemistry College of Life Sciences, Ritsumeikan University, Kusatsu, 525-8577, Japan.
² Nanomaterials Research Institute (NMRI), National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, 563-8577, Japan.

PMID: 32783362
DOI: 10.1002/cplu.202000503

Abstract

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.

Keywords: anion binding; conformation changes; nonlinear optics; sensors; two-photon absorption.

Publication types

Review
Research Support, Non-U.S. Gov't