Light driven reactions of single physisorbed azobenzenes Supplementary information

Light-driven bending of diarylethene mixed crystals† †Electronic supplementary information (ESI) available: Synthetic procedures and characterization of 2a, supplementary data, and crystallographic analysis. CCDC 1060727 and 1408475. For ESI and crystallographic data in CIF or other electronic format See DOI: 10.1039/c5sc01994j Click here for additional data file. Click here for additional data file.

Mixed crystals composed of 1,2-bis(2-methyl-5-(p-methoxyphenyl)-3-thienyl)perfluorocyclopentene (1a) and 1,2-bis(5-methyl-2-(p-methoxyphenyl)-4-thiazolyl)perfluorocyclopentene (2a) were prepared, and their photochromic as well as light-driven bending performance was studied to reveal how shape changes of individual molecules cause the bending response. 1a and 2a molecules, having similar geomet...

Utilizing light-triggered plasmon-driven catalysis reactions as a template for molecular delivery and release† †Electronic supplementary information (ESI) available: 1H NMR, 13C NMR, and mass spectrum information of synthesized MPPC molecule, the mass spectra of supernatant solution subject to 0 and 180 min of laser irradiation, calibration curve of PyA concentration vs. fluorescence intensity at 381 nm, and the extinction spectrum of the AuNPs. See DOI: 10.1039/c7sc02089a Click here for additional data file.

Photoisomerization of azobenzene derivatives in nanostructured silica.

A series of derivatized azobenzene molecules are synthesized such that one of the phenyl groups can be chemically bonded to mesostructured silica and the other, derivatized with dendrons, is free to undergo large-amplitude light-driven motion. The silica frameworks on which the motion takes place are either 150 nm thick films containing ordered hexagonal arrays of tubes (inner diameter about 2 ...

Light-driven motion of liquids on a photoresponsive surface

The macroscopic motion of liquids on a flat solid surface was manipulated reversibly by photoirradiation of a photoisomerizable monolayer covering the surface. When a liquid droplet several millimeters in diameter was placed on a substrate surface modified with a calix[4]resorcinarene derivative having photochromic azobenzene units, asymmetrical photoirradiation caused a gradient in surface fre...

Azobenzene-functionalized N-heterocyclic carbenes as photochromic ligands in silver(i) and gold(i) complexes.

The reaction of meta- and para-bromomethylene-azobenzenes with 1-methyl-imidazole yields the respective meta-/para-functionalized azobenzenes tagged with an imidazolium group. Similar reactions of ortho- and para-bromo-azobenzene with imidazole and successive quaternation with benzylbromide give the analogues, with an imidazolium group in ortho/para substituted azobenzenes. With the exception o...