Exploratory Investigations Probing a Preparatively Versatile, Pyridinium Salt Photoelectrocyclization−Solvolytic Aziridine Ring Opening Sequence
作者:Rong Ling、Mutsuo Yoshida、Patrick S. Mariano
DOI:10.1021/jo960316i
日期:1996.1.1
A novel pyridinium salt photoelectrocyclization-nucleophilic bicyclic aziridine ring opening reaction sequence has been investigated in order to determine its preparative potential. N-Alkylpyridinium perchlorates were found to undergo photoinduced electrocyclization upon irradiation in nucleophilic solvents, such as H(2)O and MeOH, to efficiently produce 6-alkyl-6-azabicyclo[3.1.0]hex-2-en-4-yl alcohols
One- and two-photon-induced isomerization of styryl compounds possessing A-π-A′ structure
作者:Beata Jędrzejewska、Marta Gordel、Janusz Szeremeta、Małgorzata A. Kaczorowska、Marek Józefowicz、Marek Samoć
DOI:10.1016/j.dyepig.2016.05.001
日期:2016.9
(800 nm) light promotes the conversion of the E-isomer of the studied compounds to the Z-isomer. Under the UV irradiation (310 nm) the obtained Z-isomer reverts to the initial form in tens of minutes. The observed inter-conversion was found to be fast and efficient. The trans-to-cis isomerization was followed by decomposition of the compound upon longer than 100 s exposure to light as indicated from mass
Dipole reversal in Langmuir–Blodgett films of an optically nonlinear dye and its effect on the polarity for molecular rectification
作者:Geoffrey J. Ashwell、Benjamin J. Robinson、Mukhtar A. Amiri、Danika Locatelli、Silvio Quici、Dominique Roberto
DOI:10.1039/b506765k
日期:——
LangmuirâBlodgett (LB) films of isomeric donorâ(Ï-bridge)âacceptor molecules with either a hydrophobically substituted acceptor [DâÏâAâC16H33
(1)] or donor [AâÏâDâC16H33
(2)] exhibit second-harmonic generation and asymmetric currentâvoltage characteristics: a reversed polarity for rectification arises from an inversion of the dipole orientations in the two types of monolayer.