Premium
3,6‐Diazaxanthylium Salts: Dyes with a New Chromophore
Author(s) -
Eggers Lutz,
Grahn Walter,
Lüttke Wolfgang,
Knieriem Burkhard,
Jones Peter G.,
Chrapkowski Axel
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199408631
Subject(s) - chromophore , substituent , bent molecular geometry , fluorescence , wavelength , chemistry , photochemistry , crystal (programming language) , crystal violet , materials science , stereochemistry , optics , optoelectronics , organic chemistry , physics , computer science , medicine , pathology , programming language
A new tricyclic framework is the characteristic feature of the violet, air‐sensitive dyes 1 . The phenyl substituent X (X = Ph, 4‐CF 3 ‐C 6 H 4 ) is arranged orthogonally to the chromophore both in the crystal and in solution, and the tricycle is bent by about 5° about the axis C9–O10. In comparison to the frequently used rhodamines, compounds 1 absorb at longer wavelengths and fluoresce with lower quantum yields.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom