Very high cyclization quantum yields of diarylethene having two N-methylpyridinium ions
Dithienylethenes having a pyridinium cation at one and both thiophene rings were synthesized. The derivatives with two pyridinium cation showed the cyclization quantum yield as high as 0.71, which is much larger than the values of the monocation derivative and the neutral form. This can be explained...
Saved in:
Published in | Chemistry letters Vol. 32; no. 12; pp. 1178 - 1179 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
TOKYO
Chemical Soc Japan
05.12.2003
|
Subjects | |
Online Access | Get more information |
Cover
Loading…
Summary: | Dithienylethenes having a pyridinium cation at one and both thiophene rings were synthesized. The derivatives with two pyridinium cation showed the cyclization quantum yield as high as 0.71, which is much larger than the values of the monocation derivative and the neutral form. This can be explained by the conformation of the open-ring isomer of the diarylethenes. |
---|---|
ISSN: | 0366-7022 1348-0715 |
DOI: | 10.1246/cl.2003.1178 |