DOI: 10.1063/1.1723970. Theory of the Ultraviolet Absorption Spectrum of Diphenyl

Theory of the Ultraviolet Absorption Spectrum of Diphenyl

10.1063/1.1723970

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

The lower excited energy levels of the molecule diphenyl are calculated by the method of antisymmetrized products of molecular orbitals. The wave functions for diphenyl are constructed from linear combinations of benzene molecular orbitals and the perturbation of the original energy levels of benzene caused by the presence of the second benzene ring in diphenyl is computed. The theory predicts the splitting of the two non-degenerate singlet levels and the one degenerate singlet level of benzene into eight levels, four of which give allowed electronic transitions to the ground state and four of which do not. Experimentally three strong structureless bands are observed, one between λ = 2200A and λ = 2800A, one at about λ = 1900A, and one below λ = 1700A. The calculated spectrum has allowed transitions at about 2400A, 1900A, 1500A, and 1400A, and thus is in good agreement with the experimental observations.

Bibliography

London, A. (1945). Theory of the Ultraviolet Absorption Spectrum of Diphenyl. The Journal of Chemical Physics, 13(10), 396â428.

Authors 1

Albert London (first)

References 25 Referenced 42

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{'key': '2024020812423585800_r2a', 'first-page': '359', 'volume': '82', 'year': '1940', 'journal-title': 'Proc. Am. Phil. Soc.'} / Proc. Am. Phil. Soc. (1940)
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{'key': '2024020812423585800_r4', 'first-page': '43', 'volume': '7', 'year': '1932', 'journal-title': 'Indian J. Phys.'} / Indian J. Phys. (1932)
{'key': '2024020812423585800_r4a', 'first-page': '283', 'volume': '70', 'year': '1929', 'journal-title': 'Zeits. f. Krist.'} / Zeits. f. Krist. (1929)
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{'key': '2024020812423585800_r6', 'first-page': '884', 'volume': '30', 'year': '1934', 'journal-title': 'Trans. Faraday Soc.'} / Trans. Faraday Soc. (1934)
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Dates

Type	When
Created	20 years, 7 months ago (Jan. 9, 2005, 6:55 a.m.)
Deposited	1 year, 6 months ago (Feb. 8, 2024, 7:42 a.m.)
Indexed	1 year, 6 months ago (Feb. 8, 2024, 9:03 p.m.)
Issued	79 years, 10 months ago (Oct. 1, 1945)
Published	79 years, 10 months ago (Oct. 1, 1945)
Published Print	79 years, 10 months ago (Oct. 1, 1945)

Funders 0

None

BibTeX

@article{London_1945, title={Theory of the Ultraviolet Absorption Spectrum of Diphenyl}, volume={13}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1723970}, DOI={10.1063/1.1723970}, number={10}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={London, Albert}, year={1945}, month=oct, pages={396–428} }

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