Results 111 to 120 of about 14,703 (275)

Photoisomerization and Intersystem Crossing in Nanocrystals of Double‐Bond Photoswitching Molecules

, 2023
Double-bond photoswitching molecules typically can undergo trans -> cis photoisomerization, but their photoisomerization mechanisms in the solid state have been rarely reported.
Shaofei Ni, Li, MD, Jiaxing He, Phillips, DL, Ziqi Deng, David Lee Phillips, Chen, SL, Dang, L, Dong, ZY, Junhong Pang, Li Dang, Pang, JH, Wenbin Chen, Ni, SF, Shunli Chen, Ming‐De Li, Zhengya Dong, He, JX, Deng, ZQ, Chen, WB   +19 more
core   +1 more source

Editorial for the Special Issue “Advances in Phenolic Based Complexes”

Molecules
Research on phenolic compounds and their complexes continues to advance rapidly, driven by interdisciplinary efforts that expand both their fundamental scientific significance and practical applications.
Kiril Gavazov
doaj   +1 more source

Photoisomerization of the C15-aldehyde and the C18-ketone in the vitamin a series. Solvent effect on photoisomerization of compounds related to retinal

, 1981
The directions of photoisomerization of polyenals and polyenones are believed to be controlled by the relative ordering of the n,π and π, πa ...
Denny, M, R.S.H. Liu, Liu, R. S. H., Ramamurthy, V, Denny, M., V. Ramamurthy, M. Denny, Liu, R.S.H, Ramamurthy, V.   +8 more
core   +1 more source

Photochemical Е/Z isomerization of isonicotinoyl hydrazones based on pyridoxine derivatives

Учёные записки Казанского университета: Серия Естественные науки
Isonicotinoyl hydrazone of 6-carbaldehyde pyridoxine 1, existing as a mixture of E and Z isomers, is known to exhibit potent activity against drug-resistant strains of M. tuberculosis.
N. V. Shtyrlin, R. M. Khaziev, D. R. Islamov, Y. G. Shtyrlin   +3 more
doaj   +1 more source

Two-photon-induced photoisomerization of an azo dye

, 2005
The cis-trans photoisomerization of an azo dye was induced by two-photon excitation using a titanium: sapphire femtosecond laser, and was monitored by 1H NMR spectroscopy.
Mackay, Fiona S., Sadler, Peter J., Jones, Anita C., Tait, Katrina M., Magennis, Steven W.   +4 more
core   +1 more source

Structural Volume Changes upon Photoisomerization: A Laser-Induced Optoacoustic Study with a Water-Soluble Nitrostilbene [PDF]

, 2001
The trans to cis photoisomerization of 4,4′-dinitro-2,2′-disulfonylstilbene (DS) was studied by laser-induced optoacoustic spectroscopy (LIOAS) in aereated neat water and in aereated aqueous solutions of various monovalent cations (NH4+, N(CH3)4+, Na+, K+
Rodríguez, M.A. [0000-0003-0123-9905], Feis, A., Michler, I., Braslavsky, S.E., Feis, Alessandro, Rodríguez, M.A., Silvia E. Braslavsky, Alessandro Feis, Ingolf Michler, Miguel A. Rodríguez   +9 more
core   +1 more source

Near Infrared Photoswitching by Direct Excitation—A Next Frontier

Angewandte Chemie International Edition, EarlyView.
Molecular photoswitches finally enter the spectral realm of near‐infrared for their direct excitation. This minireview summarizes the current state‐of‐the‐art, the design principles for achieving such low‐energy light responsiveness, and the unique applications that are unlocked by it.
Diptiprava Sahoo, Elias Ciekalski, Henry Dube   +2 more
wiley   +1 more source

A Study on the Photoisomerization of (E)-Dehydrozingerone, Its (E)-(E)-C₂ Symmetric Dimer, and Their O-Methylated Derivatives

Molecules
In this study, UV-induced (E)-to-(Z) geometrical isomerizations of the curcumin degradation product (E)-dehydrozingerone, along with curcumin-inspired (E)-O-methylated dehydrozingerone and their corresponding C2-symmetric dimers, were investigated.
Maria Antonietta Dettori, Valeria Ugone, Davide Fabbri, Paola Carta   +3 more
doaj   +1 more source

History-dependent nano-photoisomerization by optical near-field in photochromic single crystals

Communications Materials
The history dependence of physical systems is promising for solving complex problems. To exploit spontaneous nanometre-scale optical memory for computation, the history dependence must be elucidated. Here, we demonstrate history-dependent or dynamic nano-
Yuji Arakawa, Kazuharu Uchiyama, Kingo Uchida, Makoto Naruse, Hirokazu Hori   +4 more
doaj   +1 more source

Steric Effects in Hula-Twist Photoisomerization. 1,4-Dimethyl- and 2,3-Dimethyl-1,4-diphenylbutadienes

, 2016
1,4-Dimethyl-1,4-diphenylbutadiene was shown to be able to execute regiospecific HT-1 photoisomerization around a methyl group when irradiated in a low-temperature organic glass, albeit at reduced efficiency.
Jin Liu (1235427), Natalie L. Wendt (2678194), Lan-ying Yang (2678191), Robert S. H. Liu (2350639)   +3 more
core   +1 more source