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Interaction of Curved and Flat Molecular Surfaces. The Structures of Crystalline Compounds Composed of Fullerene (C60, C60O, C70, and C120O) and Metal Octaethylporphyrin Units

Olmstead, Marilyn M., Costa, David A., Maitra, Kalyani, Noll, Bruce C., Phillips, Shane L., Van Calcar, Pamela M., Balch, Alan L.·1999·Journal of the American Chemical Society

Abstract

Solutions of C 60, C 60 O, or C 70 and metal complexes of octaethylporphyrin (OEPH 2 ) yield crystals that contain both the fullerene and the porphyrin. The structures of C 60 ·2Co II (OEP)·CHCl 3, C 60 ·2Zn II (OEP)·CHCl 3, and C 60 O·2Co II (OEP)·CHCl 3 are isomorphous and contain an ordered C 60 cage surrounded by two M II (OEP) units. Although there is no covalent bond between the fullerene and porphyrin components, the separation between these units is shorter than normal van der Waals contact. Crystals of C 70 ·Co II (OEP)·C 6 H 6 ·CHCl 3, C 70 ·Ni II (OEP)·C 6 H 6 ·CHCl 3, and C 70 ·Cu II (OEP)·C 6 H 6 ·CHCl 3 are also isomorphous with an ordered fullerene, but have only one porphyrin/fullerene contact. Crystalline C 60 ·ClFe III (OEP)·CHCl 3 lacks the close face-to-face porphyrin/porphyrin contact that is common to all of the other structures reported here but retains the intimate contact between the porphyrin and the fullerene. In (C 120 O)·Co II (OEP)·0.6C 6 H 6 ·0.4CHCl 3 the fullerene dimer is enclosed by two Co II (OEP) moieties. Unfortunately disorder in the fullerene portion obscures details of the geometry of the bridging region between the fullerenes.

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Authors
Olmstead, M. M., Costa, D. A., Maitra, K., Noll, B. C., Phillips, S. L., Van Calcar, P. M., & Balch, A. L.
Venue
Journal of the American Chemical Society
Published
1999-07-20
Volume
121
Issue
30
Pages
7090-7097
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2048508129
Cited by
371
References
0
FWCI
12.28
Type
journal article
Language
en
Open access
closed

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