Hostname: page-component-848d4c4894-r5zm4 Total loading time: 0 Render date: 2024-06-19T11:33:03.620Z Has data issue: false hasContentIssue false
  • English
  • Français

Reactions of Thiophene and Methylthiophenes in the Interlayer of Transition-Metal Ion-Exchanged Montmorillonite Studied by Resonance Raman Spectroscopy

Published online by Cambridge University Press:  02 April 2024

Yuko Soma ,
Mitsuyuki Soma ,
Yukio Furukawa  and
Issei Harada
Yuko Soma
Affiliation:
National Institute for Environmental Studies, Yatabe, Tsukuba, Ibaraki 305, Japan
Mitsuyuki Soma
Affiliation:
National Institute for Environmental Studies, Yatabe, Tsukuba, Ibaraki 305, Japan
Yukio Furukawa
Affiliation:
Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980, Japan
Issei Harada
Affiliation:
Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980, Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

The adsorption and reaction of thiophene and methylthiophenes in the interlayer of Cu2+- and Fe3+-montmorillonites were investigated by resonance Raman spectroscopy. Thiophene and 3-methylthiophene polymerized to form cations of polythiophene and polymethylthiophene respectively, which were characterized by absorption bands in the near-infrared region. These polymer cations formed in the interlayer were reduced to their neutral polymers if the clay-polymer complexes were in contact with water, and the formation of their neutral polymers was clearly demonstrated by their resonance Raman spectra. 2,5-Dimethylthiophene in which polymerization was hindered by methyl substitution at the 2 and 5 positions, was oxidized to 2,5-dimethylthiophene cation in the interlayer.

Keywords

AdsorptionInterlayer reactionMontmorillonitePolymerizationRaman spectroscopyThiophene
Type
Research Article
Information
Clays and Clay Minerals , Volume 35 , Issue 1 , February 1987 , pp. 53 - 59
Copyright
Copyright © 1987, The Clay Minerals Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Akimoto, M., Furukawa, Y., Takeuchi, H. and Harada, I., 1984 Vibrational spectra of conjugated conductive polymer Proc. Symp. Molecular Structures 312 – 313.Google Scholar
Akimoto, M., Furukawa, Y., Takeuchi, H. and Harada, I., 1985 Vibrational spectra of polythiophene Proc. 50th Annual Meeting Chem. Soc. Japan 35.Google Scholar
Akimoto, M., Furukawa, Y., Takeuchi, H., Harada, I., Soma, Y. and Soma, M., 1986 Correlation between vibrational spectra and electrical conductivity of polythiophene Synth. Met. 15 353 – 360.CrossRefGoogle Scholar
Bredas, J. L., Chance, R. R. and Silbey, R., 1981 Theoretical study of charged defect states in doped polyacetylene and polyparaphenylene Mol. Cryst, Liq. Cryst. 77 319 – 332.CrossRefGoogle Scholar
Bredas, J. L., Silbey, R., Boudreaux, D. S. and Chance, R. R., 1983 Chain-length dependence of electronic and electrochemical properties of conjugated systems: Polyacetylene, polyphenylene, polythiophene, and polypyrrole J. Amer. Chem. Soc. 105 6555 – 6559.CrossRefGoogle Scholar
Chung, T. C., Kaufman, J. H., Heeger, A. J. and Wudl, F., 1984 Charge storage in poly(thiophene): Optical and electrochemical studies Phys. Rev. 702 – 710.CrossRefGoogle Scholar
Cloos, P. V., Poel, D. and Camerlynck, J. P., 1973 Thiophene complexes on montmorillonite saturated with different cations Nature Phys. Sci. 243 54 – 55.CrossRefGoogle Scholar
Mortland, M. M. and Pinnavaia, T. J., 1971 Formation of copper(II)-arene complexes on the interlamellar surfaces of montmorillonite Nature Phys. Sci. 229 75 – 77.CrossRefGoogle Scholar
Pinnavaia, T. J., Hall, P. T., Cady, S. S. and Mortland, M. M., 1974 Aromatic radical cation formation on the intracrystal surfaces of transition metal layer lattice silicates J. Phys. Chem. 78 994 – 999.CrossRefGoogle Scholar
Pinnavaia, T. J. and Mortland, M. M., 1971 Interlameller metal complexes on layer silicates I. Copper(II)-arene complexes on montmorillonite J. Phys. Chem. 75 3957 – 3962.CrossRefGoogle Scholar
Rupert, J. P., 1973 Electron spin resonance spectra of interlamellar copper(II)-arene complexes on montmorillonite J. Phys. Chem. 77 784 – 790.CrossRefGoogle Scholar
Seyama, H. and Soma, M., 1984 X-ray photoelectron spectroscopic study of montmorillonite containing exchangeable divalent cations J. Chem. Soc, Faraday Trans. 1 80 237 – 248.CrossRefGoogle Scholar
Shirakawa, H. and Yamabe, T., 1980 Synthetic metals Tokyo, Japan Kagaku-dojin.Google Scholar
Soma, Y., Soma, M. and Harada, I., 1983 Raman spectroscopic evidence of formation of p-dimethoxybenzene cation on Cu- and Ru-montmorillonites Chem. Phys. Lett. 94 475 – 478.CrossRefGoogle Scholar
Soma, Y., Soma, M. and Harada, I., 1983 Resonance Raman spectra of benzene adsorbed on Cu2+-montmorillonite. Formation of poly(p-phenylene) cations in the interlayer of the clay mineral Chem. Phys. Lett. 99 153 – 156.CrossRefGoogle Scholar
Soma, Y., Soma, M. and Harada, I., 1984 The reaction of aromatic molecules in the interlayer of transition-metal ionexchanged montmorillonite studied by resonance Raman spectroscopy. 1. Benzene and p-phenylenes J. Phys. Chem. 88 3034 – 3038.CrossRefGoogle Scholar
Soma, Y., Soma, M. and Harada, I., 1985 Reactions of aromatic molecules in the interlayer of transition-metal ion-exchanged montmorillonite studied by resonance Raman spectroscopy. 2. Monosubstituted benzenes and 4,4’-disubstituted biphenyls J. Phys. Chem. 89 738 – 742.CrossRefGoogle Scholar
Tourillon, G. and Garnier, F., 1983 Effect of dopant on the physicochemical and electrical properties of organic conducting polymers J. Phys. Chem. 87 2289 – 2292.CrossRefGoogle Scholar
Tourillon, G., Gourier, D., Garnier, P. and Vivien, D., 1984 Electron spin resonance study of electrochemically generated polythiophene and derivatives J. Phys. Chem. 88 1049 – 1051.CrossRefGoogle Scholar
Yong, C. and Renyuan, Q., 1985 IR and Raman studies of polythiophene prepared by electrochemical polymerization Solid State Communi. 54 211 – 213.CrossRefGoogle Scholar