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  • 1 Universidade Federal da Paraíba LTM, Departamento de Química, CCEN 58059-900 Joăo Pessoa Paraíba Brazil E-mail 58059-900 Joăo Pessoa Paraíba Brazil E-mail
  • | 2 Universidade Estadual de Campinas Instituto de Química 13083-970 Campinas Săo Paulo Brazil 13083-970 Campinas Săo Paulo Brazil
  • | 3 Universidade Federal do Rio Grande do Norte Departamento de Química, CCET Natal RN Brazil Natal RN Brazil
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Abstract  

The standard molar enthalpy of formation of crystalline dialkyldithiocarbamate chelates, [Pd(S2CNR2)2], with R=CH3 and i-C3H7, was determined through reaction-solution calorimetry in 1,2-dichloroethane, at 298 K. Using the standard molar enthalpies of formation of the gaseous chelates, the homolytic (52618 and 66610) and heterolytic (269318 and 295710 kJ mol-1) mean enthalpies of palladium-sulphur bond dissociation were calculated.

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