Results 41 to 50 of about 14,703 (275)
Photoisomerization of a Fullerene Dimer
The Journal of Physical Chemistry C, 2008 A photo-switchable fullerene dimer and its analogous nitrogen endohedral species have been synthesized and characterized. Irradiation by ultraviolet and visible light has been used to switch between the trans and cis isomers of both the C and N@C based dimers.
Zhang, Jinying +7 more
openaire +6 more sources
Mechanism and Dynamics of Azobenzene Photoisomerization
Journal of the American Chemical Society, 2003 The excited-state dynamics of trans-azobenzene were investigated by femtosecond time-resolved photoelectron spectroscopy and ab initio molecular dynamics. Two near-degenerate pipi* excited states, S2 and S3,4, were identified in a region hitherto associated with only one excited state.
Schultz, Thomas +9 more
openaire +4 more sources
Molecules, 2021 Nonlinear optical techniques as two-photon absorption (TPA) have raised relevant interest within the last years due to the capability to excite chromophores with photons of wavelength equal to only half of the corresponding one-photon absorption energy ...
Marco Marazzi +5 more
doaj +1 more source
Intraannular photoreactions in pseudo-geminally substituted [2.2]paracyclophanes
Beilstein Journal of Organic Chemistry, 2011 The photoisomerization of the pseudo-geminal tetraene 11 furnishes the cyclooctadiene derivatives 13 and 15 with a completely new type of molecular bridge for a [2.2]paracyclophane which promise many interesting novel applications; the same is true for ...
Henning Hopf +2 more
doaj +1 more source
Photoisomerization of merocyanine 540 in polymer-surfactant aggregate [PDF]
, 2002 Photoisomerization of merocyanine 540 (MC540) in a polymer-surfactant aggregate is studied using picosecond time resolved emission spectroscopy. The aggregate consists of the polymer, poly(vinylpyrrolidone) (PVP) and the surfactant, sodium dodecyl ...
Sen, Sobhan +3 more
core +1 more source
A Thorough Study on the Photoisomerization of Ferulic Acid Derivatives
, 2021 A thorough study on the (E) to (Z) photoisomerization of ferulic acid derivatives (esters, amides of all types, and ketones) was carried out. At the photostationary state, only aliphatic or benzylic tertiary amides reach a nearly complete conversion of ...
Basso A. +6 more
core +1 more source
Molecules, 2018 Chloro- and dichloro-methylsulfonyl nitrenes, CH2ClS(O)2N and CHCl2S(O)2N, have been generated from UV laser photolysis (193 and 266 nm) of the corresponding sulfonyl azides CH2ClS(O)2N3 and CHCl2S(O)2N3, respectively.
Yang Yang +4 more
doaj +1 more source
AntioxidantsThe impact of photoisomerization on antioxidant properties holds significant implications for fields such as medicine, chemistry, and consumer products.
Lei Wang, Chaofan Sun, Lingling Wang
doaj +1 more source
Regulation of the Switchable Luminescence of Tridentate Platinum(II) Complexes by Photoisomerization
Frontiers in Chemistry, 2021 Organoplatinum (II) complexes are promising candidates for the construction of smart supramolecular materials due to their unique flat structures. This accompanied by intriguing luminescent properties, prompts the molecules to aggregate after external ...
Yongguang Li +4 more
doaj +1 more source
, 2012 DFT and TDDFT methods have been performed to investigate the photoisomerization effect for dithiazolylarylene on solution. The weak S center dot center dot center dot N interaction and CH center dot center dot center dot N hydrogen bond restrain the ...
Zhou, Pan-Wang +4 more
core +1 more source