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Preparation and characterization of singly oxidized metalloporphyrin dimers: [M(OEP[sup [sm bullet]/2])][sub 2]SbCl[sub 6], M = Cu, Ni. Photosynthetic special pair models

Journal Article · · Journal of the American Chemical Society; (United States)
DOI:https://doi.org/10.1021/ja00056a072· OSTI ID:5989358
; ; ; ; ; ;  [1]; ;  [2]; ;  [3]
  1. Univ. of Notre Dame, IN (United States)
  2. Univ. of Southern California, Los Angeles (United States)
  3. Centre d'Etudes Nucleaires de Grenoble (France)

The authors report the preparation and physical characterization (X-ray, UV-visible-near IR, IR, EPR, magnetic susceptibility) of two new metalloporphyrin [pi]-cation radical derivatives formally analogous to the radical cation of the photosynthetic reaction central special pair. The complexes are [M(OEP[sup [sm bullet]/2])][sub 2][sup +] (M = Ni or Cu), and they possess a single electron holes per pair of porphyrin rings; both form discrete dimers in the solid state. The absence of an obvious covalent bond in these dimers distinguishes them from al previously characterized [open quotes]partially oxidized[close quotes] bis(porphyrin) systems. 21 refs., 4 figs.

OSTI ID:
5989358
Journal Information:
Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 115:3; ISSN JACSAT; ISSN 0002-7863
Country of Publication:
United States
Language:
English