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Interaction of Phenamiphos with Montmorillonite

Published online by Cambridge University Press:  02 April 2024

J. Maza Rodríguez ,
A. Jiménez López  and
Sebastián Bruque
J. Maza Rodríguez
Affiliation:
Departamento de Química Inorgánica, Universidad de Malaga, Apartado 59, 29071 Málaga, Spain
A. Jiménez López
Affiliation:
Departamento de Química Inorgánica, Universidad de Malaga, Apartado 59, 29071 Málaga, Spain
Sebastián Bruque
Affiliation:
Departamento de Química Inorgánica, Universidad de Malaga, Apartado 59, 29071 Málaga, Spain
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Abstract

Phenamiphos interacted with homoionic montmorillonites of Ca2+, Mn2+, Co2+, and Ni2+ to form interlayer complexes having basal spacings of about 16.5 Å. In the infrared spectra, the ν-PO bands were displaced towards lower frequencies suggesting that this group interacted with the exchange cations. Moreover, a small shoulder at 1600 cm−1 indicated the partial protonation of the phenamiphos. After heating the complexes to 110°, 160°, and 200°C, however, the bands corresponding to δ-NH2+ and ν-NH intensified because of increased protonation, whereas the ν-PO bands had the same intensity as in pure phenamiphos. The fundamental implication of these observations is that phenamiphos interacts with exchange cations through molecules of coordinated water, possibly by means of the P=O group.

Keywords

Infrared spectroscopyMontmorilloniteOrganophosphorus compoundPesticidePhenamiphosProtonation
Type
Research Article
Information
Clays and Clay Minerals , Volume 36 , Issue 3 , June 1988 , pp. 284 - 288
Copyright
Copyright © 1988, The Clay Minerals Society

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References

Bailey, G. W. and White, J. L., 1970 Factors influencing the adsorption, desorption and movement of pesticides in soil Res. Rev. 32 29 – 92.Google Scholar
Bellamy, L.J., 1975 The Infrared Spectra of Complex Molecules London Chapman and Hall 289 – 291.CrossRefGoogle Scholar
Bowman, B. T., Adams, R. S. Jr. and Fenton, S. W., 1970 Effect of water upon malation adsorption onto five montmorillonite systems J. Agric. Food Chem. 18 723 – 727.CrossRefGoogle Scholar
Gutierrez Rios, E. and Garcia, F., 1949 Genesis of the montmorillonite of Spanish Morocco An. Edaf. Agrobiot. 8 537 – 558.Google Scholar
Harris, C. R., 1972 Factors influencing effectiveness of soil insecticides Annu. Rev. Entomol. 17 177 – 198.CrossRefGoogle Scholar
Homeyer, B., 1971 Nemacur, a highly effective nematocide for protective and curative application Pflanzenschutz-Nachrichten Bayer 24 48 – 68.Google Scholar
Interatomic Distances Supplement, 1965 Chem. Society, London S1 – S23.Google Scholar
Mortland, M. M. and Raman, K. V., 1968 Surface acidity of smectites in relation to hydration, exchangeable cation and structure Clays & Clay Minerals 16 393 – 398.CrossRefGoogle Scholar
Saltzman, S. and Yariv, S., 1976 Infrared and X-ray study of parathion montmorillonite sorption complexes Soil Sci. Soc. Amer. J. 40 34 – 38.CrossRefGoogle Scholar
Sanchez Camazano, M. and Sanchez Martin, M., 1980 Interaction of phosmet with montmorillonite Soil Sci. 129 115 – 118.CrossRefGoogle Scholar
Sanchez Camazano, M. and Sanchez Martin, M., 1980 Interactión de pesticidas organofosforados con montmorillonita. III. Dimetoato An. Edaf. Agrobiol. 39 659 – 670.Google Scholar
Sanchez Martin, M. and Sanchez Camazano, M., 1978 Interactión de pesticidas organofosforados con montmorillonita. II. Sumition Centro de Edafologia y Biologia Aplicada del C.S.I.C., Salamanca, Anuario, 1977, Vol. 4 223 – 235.Google Scholar
Sanchez Martin, M. and Sanchez Camazano, M., 1980 Interactión de fosdrin con montmorillonita Clay Miner. 15 15 – 23.CrossRefGoogle Scholar