Porphyrins are very difficult to research as they are surrounded by globular proteins. .  Curiosity has led us to question the reactivity of Tetraphenylporphyrin with other metals. Being able to study Tetraphenylporphyrin increases the knowledge we have on biological systems which include metal compounds.  The Zinc product was investigated previously to determine the enthalpy and entropy of activation was determined for the reaction.  Using a UV-Visible spectrophotometer the insertion of Cobalt Chloride into Tetraphenylporphyrin was observed.  It was found that ethanol was a suitable solvent for both Cobalt Chloride and Tetraphenylporphyrin.  The eyring equation was applied to the data obtained to calculate the enthalpy of activation and entropy of activation.  The rate constants were determined to be 6.99E-05 sec-1 for 313 K and 1.88E-04 sec-1 for 323 K  The enthalpy of activation, ?H�, was determined to be 87 .  The entropy of activation, ?S�, was determined to be 57.8 .

Reactivity of tetraphenylporphyrin with other metals

247th National Meeting (2014)

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