Photoformation of ( Z )‐Isomers in Diarylazomethines. Part IV . Direct and sensitized photoisomerization of pyridyl analogues of benzylidene‐aniline and absorption spectra of their ( Z )‐isomers | Zendy

Maeda Koko | Zendy; Fischer Ernst | Zendy

Premium

Photoformation of ( Z )‐Isomers in Diarylazomethines. Part IV . Direct and sensitized photoisomerization of pyridyl analogues of benzylidene‐aniline and absorption spectra of their ( Z )‐isomers

Author(s) -

Maeda Koko,

Fischer Ernst

Publication year - 1983

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19830660707

Subject(s) - chemistry , photoisomerization , isomerization , aniline , photochemistry , absorption spectroscopy , absorption (acoustics) , spectral line , cis–trans isomerism , irradiation , stereochemistry , organic chemistry , catalysis , physics , quantum mechanics , astronomy , acoustics , nuclear physics

UV irradiation of solutions of the (E) ‐isomers of five (out of the possible six) monopyridyl analogues at reduced temperatures results in extensive (80–90%) conversion into the corresponding (Z) ‐isomers. The process is reversible both thermally and photochemically. The (Z) ‐isomers are stable at temperatures below −80°, and their absorption spectra were estimated. Biacetyl‐photosensitized ( E )( Z ) isomerization was observed, with ( Z )‐contents of ca. 70% at the photo‐stationary state.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research