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Electronic States of Heavily Doped Molecular Crystals—Naphthalene. II. Experimental

Hong, Hwei‐Kwan and Robinson, G. Wilse (1971) Electronic States of Heavily Doped Molecular Crystals—Naphthalene. II. Experimental. Journal of Chemical Physics, 54 (3). pp. 1369-1384. ISSN 0021-9606. doi:10.1063/1.1674977.

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The energy states and optical spectra of heavily doped mixed crystals are investigated. Studies are made for the following binary systems: (1) naphthalene-h8 and -d8, (2) naphthalene-h8 and -ad1, and (3) naphthalene-h8 and -bd1 , corresponding to strong, medium, and weak perturbations, respectively. In addition to ordinary absorption spectra at 4°K, band-to-band transitions at both 4 and 77°K are also analyzed with emphasis on their relations to cooperative excitation and over-all density-of-states functions for mixed crystals. It is found that the theoretical calculations presented in a previous paper agree generally with experiments except for cluster states observed in system (1) at lower guest concentrations. These features are discussed semiquantitatively. As to the intermolecular interaction parameters, it is found that experimental results compare favorably with calculations based on experimental density-of-states functions but not with those based on octopole interactions or charge-transfer interactions. Previous experimental results of Sheka and the theoretical model of Broude and Rashba are also compared with present investigations.

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Additional Information:© 1971 American Institute of Physics. Received 4 September 1970. This work was supported in part by the National Science Foundation, Grant No. GP-12381 and the Army Research Office Durham, N.C., Contract No. DA-31-124-ARO-D-370.
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Army Research Office (ARO)DA-31-124-ARO-D-370
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Record Number:CaltechAUTHORS:20180110-231730232
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:84245
Deposited By: Donna Wrublewski
Deposited On:11 Jan 2018 16:43
Last Modified:15 Nov 2021 20:18

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