
TY  - JOUR
A1  - Ferguson, J 
A1  - Mau, W 
A1  - Morris, JM 
T1  - Spectra of azulene dimers
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1974
VL  - 27
IS  - 4
SP  - 713
EP  - 719
KW  - 
UR  - https://doi.org/10.1071/CH9740713 
N2  - Spectra of stable dimers of azulene in an isopentane-methylcyclohexane glass at 77 K are reported. In the 700 nm region the dimer spectrum shows a marked hyperchromism and blue shift of 100 cm-1 compared to the monomer. Assumption of a stacked 'head-to-tail' configuration for the dimer and use of the dipole-dipole approximation enables the spectral shift to be accounted for. In the U.V. region, a large loss of intensity is observed for the S2 &#8592; So and S3 + So transitions and a number of new dimer bands are observed. The intensity redistribution is assigned to configuration mixing of the monomer states in the dimer. No luminescence could be observed from the dimer. 
ER  -

