X-ray absorption spectroscopy of carbonyl basket handle Fe(II) porphyrins: the distortion of the tetrapyrrolic macrocycle. Cartier, C., Momenteau, M., Dartyge, E., Fontaine, A., Tourillon, G., Bianconi, A., & Verdaguer, M. Biochimica et biophysica acta, 1119(2):169–174, February, 1992.
X-ray absorption spectroscopy of carbonyl basket handle Fe(II) porphyrins: the distortion of the tetrapyrrolic macrocycle. [link]Paper  abstract   bibtex   
The distortion of the tetrapyrrolic macrocycle, the Fe-C-O bond angle and the Fe local electronic structure of carbonyl basket-handle Fe2+ porphyrins as a function of the basket-handle chain length have been studied by X-ray absorption near edge structure (XANES) spectroscopy, both in the solid state and in toluene solution. The Fe-C-O bond angle has been found to be linear in all compounds while the increasing distortion of the macrocycle with shortening of the chain length is indicated by the multiple scattering resonance in the heme plane appearing at 22 eV in the XANES spectrum.
@article{cartier_x-ray_1992,
	title = {X-ray absorption spectroscopy of carbonyl basket handle {Fe}({II}) porphyrins: the distortion of the tetrapyrrolic macrocycle.},
	volume = {1119},
	issn = {0006-3002},
	url = {http://view.ncbi.nlm.nih.gov/pubmed/1540648},
	abstract = {The distortion of the tetrapyrrolic macrocycle, the Fe-C-O bond angle and the Fe local electronic structure of carbonyl basket-handle Fe2+ porphyrins as a function of the basket-handle chain length have been studied by X-ray absorption near edge structure (XANES) spectroscopy, both in the solid state and in toluene solution. The Fe-C-O bond angle has been found to be linear in all compounds while the increasing distortion of the macrocycle with shortening of the chain length is indicated by the multiple scattering resonance in the heme plane appearing at 22 eV in the XANES spectrum.},
	number = {2},
	journal = {Biochimica et biophysica acta},
	author = {Cartier, C. and Momenteau, M. and Dartyge, E. and Fontaine, A. and Tourillon, G. and Bianconi, A. and Verdaguer, M.},
	month = feb,
	year = {1992},
	pmid = {1540648},
	pages = {169--174}
}

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