Abstract
The syntheses of four binary porphyrins, two of which are constrained to a "face-to-face" conformation, and their Co2+ and Cu2+ derivatives are described. Electron spin resonance indicates that the intermetallic separation in the binuclear "face-to-face" porphyrins is about 6.5-6.8 A. Electronic spectra and proton magnetic resonance spectra support the postulated "face-to-face" conformations. A hypothesis that related compounds may serve as multielectron redox catalysts for O2 and N2 is presented.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BLUMBERG W. E., PEISACH J. AN ELECTRON SPIN RESONANCE STUDY OF COPPER UROPORPHYRIN 3 AND OTHER TOURACO FEATHER COMPONENTS. J Biol Chem. 1965 Feb;240:870–876. [PubMed] [Google Scholar]
- Collman J. P., Gagne R. R., Reed C. A., Halbert T. R., Lang G., Robinson W. T. "Picket fence porphyrins." Synthetic models for oxygen binding hemoproteins. J Am Chem Soc. 1975 Mar 19;97(6):1427–1439. doi: 10.1021/ja00839a026. [DOI] [PubMed] [Google Scholar]
- Greenwood C., Gibson Q. H. The reaction of reduced cytochrome C oxidase with oxygen. J Biol Chem. 1967 Apr 25;242(8):1782–1787. [PubMed] [Google Scholar]
- Jahnke H., Schönborn M., Zimmermann G. Organic dyestuffs as catalysts for fuel cells. Top Curr Chem. 1976;61:133–181. doi: 10.1007/BFb0046059. [DOI] [PubMed] [Google Scholar]
- Moss T. H., Ehrenberg A., Bearden A. J. Mössbauer spectroscopic evidence for the electronic configuration of iron in horseradish peroxidase and its peroxide derivatives. Biochemistry. 1969 Oct;8(10):4159–4162. doi: 10.1021/bi00838a037. [DOI] [PubMed] [Google Scholar]
- Zumft W. G., Mortenson L. E. The nitrogen-fixing complex of bacteria. Biochim Biophys Acta. 1975 Mar 31;416(1):1–52. doi: 10.1016/0304-4173(75)90012-9. [DOI] [PubMed] [Google Scholar]