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Volumn 63, Issue 22, 1998, Pages 7584-7585

Oxidation of a Bis[Zn(II) porphyrin] Yields a Nondisjoint, Exchange-Coupled ,T Dication-Biradical

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EID: 0001061810     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo981488d     Document Type: Article
Times cited : (21)

References (54)
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  • 18
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    • Kahn, O., Ed.; Kluwer Publishing Co.: Dordrecht, The Netherlands
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    • (1996) Magnetism: a Supramolecular Function
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    • Rossi, R.; Carpita, A.; Lezzi, A. Tetrahedron 1984, 40, 2773
    • Carpita, A.; Lezzi, A.; Rossi, R. Synthesis 1984,571. Rossi, R.; Carpita, A.; Lezzi, A. Tetrahedron 1984, 40, 2773.
    • (1984) Synthesis , vol.571
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  • 27
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    • Generally speaking, planar metalloporphyrins with electron-donating meso-aryl groups give O2u-type -T-cation radicals having substantial spin density on meso-carbons; see: Atamian, M.; Wagner, R. W.; Lindsey, J. L.; Bocian, D. F. Inorg. Chem. 1988, 27, 1510.
    • (1988) Inorg. Chem. , vol.27 , pp. 1510
    • Atamian, M.1    Wagner, R.W.2    Lindsey, J.L.3    Bocian, D.F.4
  • 40
    • 4243542678 scopus 로고
    • For an excellent recent review of high-spin organic molecules, see: Rajca, A. Chem. Rev. 1994, 9-1, 871.
    • (1994) Chem. Rev. , vol.91 , pp. 871
    • Rajca, A.1
  • 42
    • 33744850115 scopus 로고    scopus 로고
    • Procedures for the preparation of all compounds as well as spectral data are contained in the Supporting Information.
    • Procedures for the preparation of all compounds as well as spectral data are contained in the Supporting Information.
  • 43
    • 0029902288 scopus 로고    scopus 로고
    • MO calculations and electrochemistry are consistent with an Q2ll-like HOMO for meso-ethynyl porphyrins; see: LeCours, S. M.; DiMagno, S. G.; Therien, M. J. J. Am. Chem. Soc. 1996, 778, 11854.
    • (1996) J. Am. Chem. Soc. , vol.778 , pp. 11854
    • Lecours, S.M.1    Dimagno, S.G.2    Therien, M.J.3
  • 45
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    • Dolphin, D., Ed.; Academic Press: New York
    • The Porphyrins; Dolphin, D., Ed.; Academic Press: New York, 1978; Vol. V.
    • (1978) The Porphyrins
  • 48
    • 33744878428 scopus 로고    scopus 로고
    • note
    • Porphyrin oxidation was achieved by cannulating 2 equiv of tris(4-bromophenyDamminium hexachloroantimonate into a cold (-78 °C) méthylène chloride solution of bis(porphyrin). After 30 min, solvent was removed on the Schlenk line, and the green solid was taken into a glovebox for EPR sample preparation. Samples were 10 mil in bis(porphyrin) for frozensolution experiments and 1 mM for fluid-solution EPR measurements. The EPR spectra of solutions of oxidized 2 remain unchanged for several days.
  • 49
    • 85085634113 scopus 로고    scopus 로고
    • 2+ consists of a single line devoid of hyperfme structure; see the Supporting Information.
    • 2+ consists of a single line devoid of hyperfme structure; see the Supporting Information.
  • 51
    • 33744859868 scopus 로고    scopus 로고
    • note
    • ms,2 is the field at which the Am, = 2 transition occurs, and D is the zero-field-splitting parameter.
  • 53
    • 33847798299 scopus 로고
    • An empirical correction to the point-dipole expression has been suggested for dinitroxide biradicals; see: Gleason, W. B.; Barnett, R. E. J. Am. Chem. Soc. 1976, 9S, 2701.
    • (1976) J. Am. Chem. Soc. , vol.9 , pp. 2701
    • Gleason, W.B.1    Barnett, R.E.2
  • 54
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    • Berson, J. A., Ed.; John Wiley & Sons: New York
    • For a discussion of the utility of Curie plots, see the following and references therein: The Chemistry ofQuinonoid Compounds; Berson, J. A., Ed.; John Wiley & Sons: New York, 1988; Vol. 2, pp 473-489.
    • (1988) The Chemistry OfQuinonoid Compounds , vol.2 , pp. 473-489


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.