Electron diffraction of thin-film pentacene

The structure of pentacene thin films deposited on NaCl substrates have been studied by electron diffraction. The lattice parameters of a `thin film' phase [a = 6.1 (1), b = 7.6 (1), c = 15.3 (3) Å, α = 81.0 (16), β = 85.0 (17), γ = 89.5 (9)°] were determined using a series of diffraction patte...

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Bibliographic Details
Published in:Journal of applied crystallography 2004-02, Vol.37 (1), p.78-81
Main Authors: Wu, J. S., Spence, J. C. H.
Format: Article
Language:English
Subjects:
Aliphatic, non-condensed and condensed benzenic, and alicyclic compounds
Condensed matter: structure, mechanical and thermal properties
electron diffraction
Electron diffraction and scattering
Exact sciences and technology
Low-energy electron diffraction (leed) and reflection high-energy electron diffraction (rheed)
Organic compounds
pentacene
Physics
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
thin film
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Summary:The structure of pentacene thin films deposited on NaCl substrates have been studied by electron diffraction. The lattice parameters of a `thin film' phase [a = 6.1 (1), b = 7.6 (1), c = 15.3 (3) Å, α = 81.0 (16), β = 85.0 (17), γ = 89.5 (9)°] were determined using a series of diffraction patterns obtained by tilting the crystal in the electron microscope. This phase has a (001) d spacing of 15.1 (3) Å. The packing of molecules in the structure is discussed.
ISSN:1600-5767
0021-8898
1600-5767
DOI:10.1107/S0021889803025093