Advertisement

Journal of Thermal Analysis and Calorimetry

, Volume 67, Issue 2, pp 413–417 | Cite as

Thermochemical Properties of Palladium(II) Chelates Involving Dialkyldithiocarbamates

  • J. R. Botelho
  • A. G. Souza
  • L. M. Nunes
  • A. P. Chagas
  • I. M. Garcia dos Santos
  • M. M. da Conceição
  • P. O. Dunstan
Article

Abstract

The standard molar enthalpies of formation of crystalline dialkyldithiocarbamates chelates, [Pd(S2CNR2)2], with R=C2H5, n-C3H7, n-C4H9 and i-C4H9, were determined through reaction-solution calorimetry in acetone, at 298.15 K. From the standard molar enthalpies of formation of the gaseous chelates, the homolytic (172.4±3.8, 182.5±3.2,150.9±3.1 and 162.6±3.1 kJ mol−1) and heterolytic (745.0±3.8, 803.7±3.3,834.3±3.1 and 735.2±3.0 kJ mol−1) mean palladium-sulphur bond-dissociation enthalpies were calculated.

calorimetry dialkyldithiocarbamates enthalpies palladium 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. A. Bernard and M. Borel, Bull. Soc. Chem. Fr., 9 (1969) 3064.Google Scholar
  2. 2.
    J. O. Hill and R. J. Magee, Rev. Inorg. Chem., 3 (1981) 141.Google Scholar
  3. 3.
    P. M. Burkinshaw and C. T. Mortimer, Coord. Chem. Rev., 48 (1983) 101.CrossRefGoogle Scholar
  4. 4.
    C. Airoldi and A. P. Chagas, Coord. Chem. Rev., 119 (1992) 29.CrossRefGoogle Scholar
  5. 5.
    A. G. Souza, F. Souza Neto, J. H. Souza, R. O. Macêdo, J. B. L. Oliveira and C. D. Pinheiro, J. Thermal Anal., 49 (1997) 679.CrossRefGoogle Scholar
  6. 6.
    M. A. R. P. Carvalho, A. G. Souza and C. Airoldi, J. Chem. Soc., Dalton Trans., (1992) 1235.Google Scholar
  7. 7.
    A. G. Souza, C. D. Pinheiro, L. C. R. Santos and M. L. M. Melo, Thermochim. Acta, 231 (1994) 31.CrossRefGoogle Scholar
  8. 8.
    L. P. M. Neves, A. G. Souza, J. B. L. Oliveira and C. Airoldi, Thermochim. Acta, 328 (1999) 217CrossRefGoogle Scholar
  9. 9.
    S. C. Dias, M. G. A. Brasilino, C. D. Pinheiro and A. G. Souza, Thermochim. Acta, 241 (1994) 25.CrossRefGoogle Scholar
  10. 10.
    C. Airoldi and A. G. Souza, J. Chem. Thermodyn., 21 (1989) 283.CrossRefGoogle Scholar
  11. 11.
    F. Bonati and R. Ugo, J. Orgametal. Chem., 10 (1967) 257.CrossRefGoogle Scholar
  12. 12.
    D. D. Wagman, W. H. Evans, V. B. Parker, R. H. Schumm, I. Halow, S. W. Bailey, K. L. Churney and R. L. Nuttall, J. Phys. Chem. Ref. Data, Suppl., 2 (1982) 11.Google Scholar
  13. 13.
    M. A. V. Ribeiro da Silva, A. M. V. Reis and G. Pilcher, J. Chem. Thermodyn., 19 (1987) 837.CrossRefGoogle Scholar
  14. 14.
    A. G. Souza, C. D. Pinheiro and C. Airoldi, Polyhedron, 11 (1992) 371.CrossRefGoogle Scholar
  15. 15.
    R. C. Reid and T. K. Sherwood, The Properties of Gases and Liquids, 2nd edn., McGraw.Hill, New York 1968.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • J. R. Botelho
    • 1
  • A. G. Souza
    • 1
  • L. M. Nunes
    • 1
  • A. P. Chagas
    • 2
  • I. M. Garcia dos Santos
    • 1
  • M. M. da Conceição
    • 1
  • P. O. Dunstan
    • 2
  1. 1.Departamento de Química, CCENUniversidade Federal da ParaíbaJoão Pessoa, ParaíbaBrazil
  2. 2.Instituto de Quiacute;micaUniversidade Estadual de CampinasCampinas, São PauloBrazil

Personalised recommendations