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Thermal decomposition of bis-(DL-valinato)copper(II) and bis-(DL-methioninato)copper(II)

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Abstract

A kinetic study of the thermal decomposition of the complexes bis-(DL-valinato)copper(II) and bis-(DL-methioninato)copper(II) was carried out using thermogravimetry in a dynamic regime, following the theoretical model of Satava and including the equation used by Johnson and Gallagher:1/1−α−1=kt. Kinetic parameters were calculated and are compared with those obtained previously for the complex bis-(L-tryptophanato)copper(II). The sequence of thermal stability found is: Cu(DL-Val)2<Cu(L-Trp)2<Cu(DL-Met)2.

Zusammenfassung

Die thermische Zersetzung der Komplexe Bis-(DL-valinato)kupfer(II) und Bis-(DL-methioninato)kupfer(II) wurde thermogravimetrisch im dynamischen Regime untersucht, indem von dem theoretischen Modell von Šatava Gebrauch gemacht und die von Johnson und Gallagher benutzte Gleichung 1/1-α−1=kt einbezogen wurde. Kinetische Parameter wurden berechnet und mit den kürzlich für den Komplex Bis-(L-tryptophanato)kupfer(II) erhaltenen parametern verglichen. Die Stabilität der Komplexe nimmt in folgender Reihenfolge zu: Cu(DL-Val)2<Cu(L-Trp)2<Cu(DL-Met)2.

Резюме

Кинетическое исслед ование термического разложения комплекс ов бис-(ДЬ-валинато)-и биз-(ДL-метионинато)мед и(II) проведено методом термогравим етри в динамическом режиме, следуя теоретическо й модели Сатавы и включая урав нение Джонсона-Гэллэхера: 1/1− α−1=kt. Вычисленные кине тические параметры были сопос тавлены с полученными ранее д ля комплекса бис-(L-триптофанато)мед и(II). По термоустойчиво сти комплексы располага ются в ряд Cu(DL-Val)2<Cu(L-Trp)2<Cu(DL-Met)2.

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References

  1. P. G. Olafson and A. M. Byran, Chem. Commun., 23 (1968) 1473.

    Google Scholar 

  2. P. Gili and K. de la Fucnte, Inorg. Chim. Acta, 78 (1983) L5-L6.

    Article  Google Scholar 

  3. V. Šatava, Thermochim. Acta, 2 (1971) 423.

    Article  Google Scholar 

  4. D. W. Johnson and P. K. Gallagher. J. Phys. Chem., 75 (1971) 150.

    Article  Google Scholar 

  5. J. Šestak, Thermochim. Acta, 3 (1971) 150.

    Article  Google Scholar 

  6. C. C. Ou, D. A. Powers, J. A. Tich, T. R. Felthause, D. N. Hendrickson, J. A. Potenza and H. J. Stugar, Inorg. Chem., 17 (1978) 34.

    Article  Google Scholar 

  7. A. W. Herlinger, S. L. Wenhold and T. V. Long, J. Am. Chem. Soc., 92 (1970) 6474.

    Article  Google Scholar 

  8. P. Gili and P. Martin Zarza, to be published.

  9. A. E. Martell and R. M. Smith, Critical Stability Constants, Vol. I, Plenum Press, New York and London, 1974, pags 9, 50, 63.

    Google Scholar 

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Authors and Affiliations

  1. Departamento de Qufmica Inorgánica, Universidad de la Laguna, Tenerife, Canary Islands, Spain

    P. Gili & P. Martin Zarza

Authors
  1. P. Gili
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  2. P. Martin Zarza
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Gili, P., Zarza, P.M. Thermal decomposition of bis-(DL-valinato)copper(II) and bis-(DL-methioninato)copper(II). Journal of Thermal Analysis 31, 667–670 (1986). https://doi.org/10.1007/BF01914244

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