Abstract
Reflection spectra of anthracene are analysed by Kramers-Kronig method in the wavelength region from 192 to 600 mµ. The oscillator strength of the first electronic transition A 1 g → B 2 u is obtained with Lorentz field correction. The oscillator strength for individual vibronic band at room temperature is in excellent agreement with that obtained in the solution spectrum. The total oscillator strength f a + f b is 0.100 and 0.107 at room and at liquid nitrogen temperatures respectively. The quantity of the ratio of the oscillator strength as well as the absolute value of the oscillator strength is discussed in connection with the ratio of absorption intensities. Result suggests that the first vibronic band involves a contribution which arises from a thermally induced transition. Lorentz field in the anthracene crystal shows large anisotropy with respect to the direction of electric field applied. The oscillator strength obtained by simplified method is compared with that reported by several investigators.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
