Comparative FTIR study of the cobalt and iron porphyrin reactions with CO. Does cobalt porphyrin form a bis-carbonyl complex in the Ar matrix?

Autor: H.V. Adonts, T.S. Kurtikyan, G.G. Martirosyan, Gohar Sh. Hovhannisyan
Rok vydání: 2019
Předmět:
Zdroj: Inorganica Chimica Acta. 495:119011
ISSN: 0020-1693
DOI: 10.1016/j.ica.2019.119011
Popis: The adducts of Co(II)(TPP) and Fe(II)TPP (TPP is meso-tetraphenyl-porphyrinato dianion) with carbon monoxide in Ar matrix at 10 K have been studied by FTIR spectroscopy using CO, C18O and their equimolar mixture. It is shown that both metals may form mono-carbonyl adducts with CO, however formation of bis-carbonyl adduct was confirmed only for iron porphyrin. These results refute an earlier assumption regarding existence of Co(TPP)(CO)2 in Ar matrix.
Databáze: OpenAIRE