Accession Number:

AD0753382

Title:

Electronic Spectra of Large Molecules and Crystals

Descriptive Note:

Final rept. 1 Jul 1969-30 Jun 1972

Corporate Author:

PENNSYLVANIA UNIV PHILADELPHIA

Personal Author(s):

• Hochstrasser, Robin M.

Report Date:

1972-07-01

Pagination or Media Count:

7.0

Abstract:

The report briefly describes work to probe electronic properties of large molecules using low temperature spectroscopic methods and by studying the effects of external fields on high resolution spectra. The measurements of the Stark effect on the benzophenone crystal were completed. A Study of the singlet and triplet states of dichlorobenzophenone excitons in electric fields was completed. The dipole moment of the pyridine molecule in its lowest singlet n pi state was determined. A Zeeman effect study of solid carbon disulphide was completed and showed the correctness of assignments based on applications of theory to gas phase spectra.

Descriptors:

• *KETONES
• *MOLECULAR ENERGY LEVELS
• CRYSTAL LATTICES
• DIPOLE MOMENTS
• SCIENTIFIC RESEARCH
• BENZOPHENONES
• ELECTRON TRANSITIONS
• STARK EFFECT

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE