Iron nitrosyl "natural" porphyrinates: does the porphyrin matter?

ABSTRACT: The synthesis and spectroscopic characterization of three five-coordinate nitrosyliron(II) complexes, [Fe(Porph)(NO)], are reported. These three nitrosyl derivatives, where Porph represents protoporphyrin IX dimethyl ester, mesoporphyrin IX dimethyl ester, or deuteroporphyrin IX dimethyl ester, display notable differences in their properties relative to the symmetrical synthetic porphyrins such as OEP and TPP. The N-O stretching frequencies are in the range of 1651-1660 cm(-1), frequencies that are lower than those of synthetic porphyrin derivatives. Mössbauer spectra obtained in both zero and applied magnetic field show that the quadrupole splitting values are slightly larger than those of known synthetic porphyrins. The electronic structures of these naturally occurring porphyrin derivat

SUBMITTER: Wyllie GR 

PROVIDER: S-EPMC3993899 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature