A nitrosyl complex of cobalt(II) porphyrinate, [Co(FTPP)(NO)], (FTPPH = 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin) having {Co(NO)} configuration was synthesized and characterized by means of spectroscopic and structural analyses. Single crystal X-ray structure of the complex revealed the square pyramidal geometry around the cobalt center with a bent nitrosyl group. It reacts with superoxide (O) ion in CHCl at -40 °C to result in the corresponding nitrite (NO) complex. Involvement of a cobalt(II)-peroxynitrite intermediate is proposed in the course of the reaction. Moreover, spectroscopic studies suggested the formation of a transient six-coordinated [Co(NO)(O)] species.
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| http://dx.doi.org/10.1016/j.jinorgbio.2021.111698 | DOI Listing |
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