The electron transfer process between octaethylporphin and quinone molecules dispersed in a polymeric matrix was studied by the photoacoustic technique. It was observed that there was an enhancement of the octaethylporphin photoacoustic signal with an increase of the quinone concentration in the films. This increase appeared to be complementary to octaethylporphin fluorescence quenching and was associated with the electron transfer process. The data were analyzed according to the theory developed by Kaneko for fluorescence data (Kaneko 1992).
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
Albuquerque JE (1992) Estudo por espectroscopia fotoacústica de processos fotoquímicos em uma matriz polimérica. MS Thesis, DFCM, Universidade de S. Paulo
Beitz JV, Miller JR (1979) Exothermic rate restrictions on electron transfer in rigid medium. J Chem Phys 71: 4579–4595
Cornélio ML, Sanches R (1994) The use of photoacoustic spectroscopy to determine critical distance for electron transfer. J Biochem Biophys Methods 29: 149–155
Feitelson J, Mauzerall DC (1993) Wide-band, time-resolved photo-acoustic study of electron-transfer reactions: photoexcited magnesium porphyrin and quinones. J Phys Chem 97: 8410–8413
Fischer AB, Bronstein-Bonte I (1985) Photoinduced electron transfer quenching of rhodamine B in polymer films. J Photochem 30: 475–485
Fox MA, Chanon M (eds) (1988) Photoinduced electron transfer. Part B: Experimental techniques and medium effects. Elsevier, Amsterdam
Gasyna Z. Browett WR, Stillman MJ (1985) π-cation-radical formation following visible light photolysis of porphyrins in frozen solution using alkyl chlorides or quinones as electron acceptors. Inorg Chem 24: 2440–2447
Gong L-C, Dolphin D (1985) Nitrooctaethylporphyrins: synthesis, optical and redox properties. Can J Chem 63: 401–405
Guarr T, McGuire ME, McLendon G (1985) Long range photoinduced electron transfer in a rigid polymer. J Am Chem Soc 107: 5104–5111
Gust D, Moore TA, Moore AL, Lee S-J, Bittersmann E, Luttrull DK, Rehms AA, De Graziano JM, Ma XC, Gao F, Belford RE, Trier TT (1990) Efficient multistep photoinitiated electron transfer in molecular pentad. Science 248: 199–201
Kaneko M (1992) Excited state reactions of Zn(II) porphyrin incorporated into liposomes as models for biological electron transfer. Proc Indian Acad Sci (Chem Sci) 104: 723–730
Marcus RA (1965) The theory of chemiluminescent electron-transfer reactions. J Chem Phys 43: 2654–2657
Marcus RA, Stain N (1985) Electron transfers in chemistry and biology. Biochim Biophys Acta 811: 265–322
Melo WLB, Pawlicka A, Sanches R, Mascarenhas S, Faria RM (1993) Determination of thermal parameters and the optical gap of poly(3-butylthiophene) films by pbotopyroelectric spectroscopy. J Appl Phys 74: 979–982
Miller JR, Peeples JA, Schmitt MJ, Closs GL (1982) Long-distance fluorescence queching by electron transfer in rigid solutions. J Am Chem Soc 104: 6488–6493
Onuchic JN, Beratan DN (1987) Molecular bridge effects on distant charge tunneling. J Am Chem Soc 109: 6771–6778
Rosencwaig A (1980) Photoacoustics and photoacoustic spectroscopy. John Wiley, New York
Tam AC (1986) Applications of photoacoustic sensing techniques. Rev Mod Phys 58: 381–431
Wasielewki MR (1992) Photoinduced electron transfer in supramolecular systems for artificial photosynthesis. Chem Rev 92: 435–461
Weast RC, Astle MJ (eds) (1978) CRC Handbook of Chemistry and Physics 59th edn. CRC Press, West Palm Beach, p C783
Correspondence to: R. Sanches
About this article
Cite this article
Cornélio, M.L., kSanches, R. Monitoring electron transfer by photoacoustic spectroscopy. Eur Biophys J 23, 439–442 (1995). https://doi.org/10.1007/BF00196831
- Electron transfer
- Photoacoustic spectroscopy