Investigação por espectroscopia Mössbauer de compostos de ferro(0) contendo dissulfeto de carbono
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Abstract
Mössbauer na investigação de compostos carbonilferro contendo o ligante CS 2 , [Fe(CO) 2 (h 2 –CS 2
)(PPh 3 ) 2 ] e [Fe(CO) 2 (h 2 –CS 2 ) {P(OPh) 3 } 2 ]. Nas sínteses dessas espécies, a utilização de TMNO
(trimetilaminóxido) como agente descarbonilante mostrou-se bastante eficiente, superando aquelas
descritas na literatura que requerem inclusive preparação de compostos precursores. Os resultados de
espectroscopia Mössbauer, juntamente com dados no IV e de RMN de 31 P, foram conclusivos na
proposição da geometria octaédrica distorcida ao redor do átomo de ferro para ambos os compostos
investigados.
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