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Thermochemical Properties of Palladium(II) Chelates Involving Dialkyldithiocarbamates |
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| Authors: | Botelho J. R. Souza A. G. Nunes L. M. Chagas A. P. Garcia dos Santos I. M. da Conceição M. M. Dunstan P. O. |
| Affiliation: | 1.Departamento de Química, CCEN, Universidade Federal da Paraíba, 58059-900, Jo?o Pessoa, Paraíba, Brazil ;2.Instituto de Quiacute;mica, Universidade Estadual de Campinas, 13083-970, Campinas, S?o Paulo, Brazil ; |
| 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. This revised version was published online in July 2006 with corrections to the Cover Date. |
| Keywords: | calorimetry dialkyldithiocarbamates enthalpies palladium |
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