Alkyl chain effects in thin films of substituted phthalocyanines studied using infrared spectroscopy

Thin films (2–50 nm) of unsubstituted and 1,4-octa-alkyl substituted zinc phthalocyanines were investigated using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, whereas the alkyl chains are C 4H 7, C 7H 13, C 10H 19. The absorption bands in the whole spectral range a...

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Bibliographic Details
Published in:Applied surface science 2005-09, Vol.252 (1), p.139-142
Main Authors: Haug, A., Harbeck, S., Dini, D., Hanack, M., Cook, M.J., Peisert, H., Chassé, T.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
FTIR–ATR spectroscopy
Phthalocyanine
Physics
Thin films
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Summary:Thin films (2–50 nm) of unsubstituted and 1,4-octa-alkyl substituted zinc phthalocyanines were investigated using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, whereas the alkyl chains are C 4H 7, C 7H 13, C 10H 19. The absorption bands in the whole spectral range are discussed. We observe distinct differences in the spectra between the alkyl substituted Phthalocyanine (Pc) compounds. In contrast to PcZn and (but) 8PcZn, the spectra of (hep) 8PcZn and (dec) 8PcZn show two additional features in the spectral range between 3700 and 3000 cm −1, which are discussed in detail.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2005.01.117