Structure Property Analysis of the Solution and Solid-State Properties of Bistable Photochromic Hydrazones
作者:Baihao Shao、Hai Qian、Quan Li、Ivan Aprahamian
DOI:10.1021/jacs.9b03932
日期:2019.5.22
photophysical and switchingproperties are prerequisites for accessing new functions and opportunities that are not possible with currently available systems. To this end we recently developed a new bistable hydrazoneswitch that undergoes efficient photoswitching and emission ON/OFF toggling in both solution and solid-state. Here, we present a systematic structure-property analysis using a family of hydrazones
new photoswitches that can modulate biomolecules has been of consistent interest. Herein, it is shown that installation of amide substituents at different position(s) of hydrazonephotoswitches does not cause a significant change in E/Z photoswitching behaviors. It is also demonstrated that a hydrazone switch comprising an upper phenyl ring and a lower quinolinyl ring is effective for structural control
Photochromic Hydrazone Switches with Extremely Long Thermal Half-Lives
作者:Hai Qian、Susnata Pramanik、Ivan Aprahamian
DOI:10.1021/jacs.7b04993
日期:2017.7.12
A family of easily accessible light-activated hydrazone switches has been developed having thermal half-lives of up to 2700 years! Structure–property analysis shows that replacing the rotor pyridyl group of our typical hydrazone switch with a phenyl one leads to the long-lived negative photochromic compounds. The switching properties of the hydrazones in both toluene and DMSO were assessed offering
Provided herein are compounds for use as photochromic molecular switches having very long thermal isomerization half-lives and switchable fluorescence properties both in solution and the solid state.