Pyrolysis of metalloporphyrins. Part 1.—Fourier-transform infrared study of Fe-tetraphenylporphyrin chloride

Autor:	Ragnar Larsson, Anders Widelöv, Bernd Rebenstorf, Tai-Cheng Sheng
Rok vydání:	1992
Předmět:	Analytical chemistry chemistry.chemical_element Carbon black Decomposition Chloride chemistry.chemical_compound chemistry Tetraphenylporphyrin medicine Chlorine Physical and Theoretical Chemistry Fourier transform infrared spectroscopy Pyrolysis Carbon medicine.drug
Zdroj:	J. Chem. Soc., Faraday Trans.. 88:477-482
ISSN:	1364-5455 0956-5000
Popis:	The pyrolysis of Fe-tetraphenylporphyrin chloride (FeCITPP) has been examined by FTIR spectroscopy. Two series of samples, with and without additional carbon black, were studied. It was found that the decomposition of FeCITPP occurred in a very narrow range of temperature. The mixture of FeCITPP and carbon decomposed at a lower temperature than pure crystalline FeCITPP. The oxygen chemically adsorbed on the surface of carbon black may play an important role in this respect. The mechanisms of pyrolysis have been discussed and a model of three steps of decomposition was proposed. The first step has been followed also by measuring the chlorine content by means of quantitative XPS.
Databáze:	OpenAIRE
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