Rotational contours of bands of electron and vibronic transitions of the fluorescence excitation spectrum of jet-cooled
carbazole complexes with one, two and three water molecules are studied. For the carbazole-(H2O)1 complex two bands
separated at 0.57 cm-1 are registered at excitation of pure electron transition and other electron and vibronic transitions
by radiation with a spectral width of 0.08 cm-1. This is caused by the tunnel effect. The intensities of the shifted low-frequency
bands are three times as weak as the high-frequency ones because of different nuclear spin-statistical weights.
Water molecules in carbazole-(H2O)2 and carbazole-(H2O)3 complexes are combined into a chain by the hydrogen bond.
Both ends of this chain are also hydrogen-bonded with a carbazole molecule. There is the interchange of the axes IA and
IB of the principal moments of inertia in the carbazole-(H2O)3 complex, as compared to the remaining considered complexes.
This results in increasing the Q-branch intensity.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.