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Volumn 6, Issue 5, 2011, Pages 1188-1196

Electronic stabilization effect of a spin-delocalized neutral radical: Synthesis of an 8-cyano-6-oxophenalenoxyl derivative and quantitative evaluation of the electronic spin structure in terms of resonance structures

Author keywords

density functional calculations; EPR spectroscopy; radicals; resonance structures; valence bond methods

Indexed keywords

DENSITY-FUNCTIONAL CALCULATIONS; EPR SPECTROSCOPY; RADICALS; RESONANCE STRUCTURE; VALENCE-BOND METHODS;

EID: 79955625908     PISSN: 18614728     EISSN: 1861471X     Source Type: Journal    
DOI: 10.1002/asia.201000793     Document Type: Article
Times cited : (22)

References (76)
  • 2
    • 0003697383 scopus 로고    scopus 로고
    • (Eds.: K. Itoh, M. Kinoshita), Kodansha & Gordon and Breach, Tokyo
    • Molecular Magnetism (Eds.:, K. Itoh, M. Kinoshita,), Kodansha & Gordon and Breach, Tokyo, 2000
    • (2000) Molecular Magnetism
  • 6
    • 79955599426 scopus 로고    scopus 로고
    • For recent studies of molecular spin quantum computing by pulsed ENDOR and ELDOR techniques
    • For recent studies of molecular spin quantum computing by pulsed ENDOR and ELDOR techniques, see
  • 12
    • 79955609177 scopus 로고    scopus 로고
    • For overviews of nitroxide radicals
    • For overviews of nitroxide radicals, see
  • 14
  • 17
    • 79955577584 scopus 로고    scopus 로고
    • For overviews of stable open-shell organic molecules
    • For overviews of stable open-shell organic molecules, see
  • 21
    • 84886179128 scopus 로고    scopus 로고
    • For the recent overview of phenalenyls, cyclopentadienyls, and other carbon-centered radicals, see: in (Ed.: RG. Hicks), Wiley, Chichester, Chap, pp.
    • For the recent overview of phenalenyls, cyclopentadienyls, and other carbon-centered radicals, see:, Y. Morita, and, S. Nishida, in Stable Radicals: Fundamentals and Applied Aspects of Odd-Electron Compounds (Ed.:, RG. Hicks,), Wiley, Chichester, 2010, Chap 3, pp 81-145.
    • (2010) Stable Radicals: Fundamentals and Applied Aspects of Odd-Electron Compounds , pp. 81-145
    • Morita, Y.1    Nishida, S.2
  • 22
    • 79955573357 scopus 로고    scopus 로고
    • Tri-tert-butylated phenalenyl is the first isolated radical as pure hydrocarbon phenalenyl
    • Tri-tert-butylated phenalenyl is the first isolated radical as pure hydrocarbon phenalenyl, see
  • 25
    • 79955641855 scopus 로고    scopus 로고
    • Steric protection with tert-butyl groups provides the stabilization of other phenalenyl derivatives such as tri-tert-butylated 1,3-diazaphenalenyl
    • Steric protection with tert-butyl groups provides the stabilization of other phenalenyl derivatives such as tri-tert-butylated 1,3-diazaphenalenyl, see
  • 27
  • 29
    • 0024833035 scopus 로고
    • 1-Cyano-4,5,6-tri(methoxy)phenalenyl and 1-cyano-6-(methylthio)phenalenyl are highly stable in solution under oxygen-free conditions, but these radicals were not isolated due to the low stability in the solid state, see.
    • 1-Cyano-4,5,6-tri(methoxy)phenalenyl and 1-cyano-6-(methylthio)phenalenyl are highly stable in solution under oxygen-free conditions, but these radicals were not isolated due to the low stability in the solid state, see:, K. Nakasuji, M. Yamaguchi, I. Murata, K. Yamaguchi, T. Fueno, H. Ohya-Nishiguchi, T. Sugano, M. Kinoshita, J. Am. Chem. Soc. 1989, 111, 9265-9267.
    • (1989) J. Am. Chem. Soc. , vol.111 , pp. 9265-9267
    • Nakasuji, K.1    Yamaguchi, M.2    Murata, I.3    Yamaguchi, K.4    Fueno, T.5    Ohya-Nishiguchi, H.6    Sugano, T.7    Kinoshita, M.8
  • 30
    • 79955602598 scopus 로고    scopus 로고
    • For spiro-bis(phenalenyl) systems with zwitterionic structures
    • For spiro-bis(phenalenyl) systems with zwitterionic structures, see
  • 33
    • 79955633984 scopus 로고    scopus 로고
    • The perchlorophenalenyl radical was isolated as a stable crystal in air
    • The perchlorophenalenyl radical was isolated as a stable crystal in air, see
  • 36
    • 79955629597 scopus 로고    scopus 로고
    • The phenalenyl radical possessing a dithio substituent was isolated as a stable crystal in air
    • The phenalenyl radical possessing a dithio substituent was isolated as a stable crystal in air, see
  • 39
    • 55549145587 scopus 로고    scopus 로고
    • A phenalenyl radical with two dithio substituents is stable in solution, but a dimeric structure is formed by intermolecular Si-S bonds in the solid state, see.
    • A phenalenyl radical with two dithio substituents is stable in solution, but a dimeric structure is formed by intermolecular Si-S bonds in the solid state, see:, L. Beer, R. W. Reed, C. M. Robertson, R. T. Oakley, F. S. Tham, R. C. Haddon, Org. Lett. 2008, 10, 3121-3123.
    • (2008) Org. Lett. , vol.10 , pp. 3121-3123
    • Beer, L.1    Reed, R.W.2    Robertson, C.M.3    Oakley, R.T.4    Tham, F.S.5    Haddon, R.C.6
  • 42
    • 79955590243 scopus 로고    scopus 로고
    • 8-Iodophenyl-substituted 6OPO derivatives were synthesized
    • 8-Iodophenyl-substituted 6OPO derivatives were synthesized, see
  • 45
    • 34247538143 scopus 로고    scopus 로고
    • 8-TTF-substituted 6OPO shows spin-center transfer accompanying solvato-/thermochromism caused by intramolecular electron transfer, see
    • 8-TTF-substituted 6OPO shows spin-center transfer accompanying solvato-/thermochromism caused by intramolecular electron transfer, see:, S. Nishida, Y. Morita, K. Fukui, K. Sato, D. Shiomi, T. Takui, K. Nakasuji, Angew. Chem. 2005, 117, 7443-7446
    • (2005) Angew. Chem. , vol.117 , pp. 7443-7446
    • Nishida, S.1    Morita, Y.2    Fukui, K.3    Sato, K.4    Shiomi, D.5    Takui, T.6    Nakasuji, K.7
  • 46
    • 27844519388 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2005, 44, 7277-7280.
    • (2005) Angew. Chem. Int. Ed. , vol.44 , pp. 7277-7280
  • 47
    • 0030067946 scopus 로고    scopus 로고
    • Steric protection at the 2- and 5-positions by tert-butyl groups is necessary for the isolation of the radical. A 6-oxophenalenoxyl with two methyl groups at the 2- and 5-positions is unstable even in a degassed solution, and affords a Ï-dimeric compound, see.
    • Steric protection at the 2- and 5-positions by tert-butyl groups is necessary for the isolation of the radical. A 6-oxophenalenoxyl with two methyl groups at the 2- and 5-positions is unstable even in a degassed solution, and affords a Ï-dimeric compound, see:, K. Hatanaka, Y. Morita, T. Ohba, K. Yamaguchi, T. Takui, M. Kinoshita, K. Nakasuji, Tetrahedron Lett. 1996, 37, 877-880.
    • (1996) Tetrahedron Lett. , vol.37 , pp. 877-880
    • Hatanaka, K.1    Morita, Y.2    Ohba, T.3    Yamaguchi, K.4    Takui, T.5    Kinoshita, M.6    Nakasuji, K.7
  • 51
    • 79955639772 scopus 로고    scopus 로고
    • The crystal structure of 3 is also shown in the Supporting Information (Figures S1-S3)
    • The crystal structure of 3 is also shown in the Supporting Information (Figures S1-S3).
  • 52
    • 79955593403 scopus 로고    scopus 로고
    • 12-Center-2-electron long Ci-C bonds in the π dimer of 2,5,8-tri-tert-butylphenalenyl were experimentally demonstrated with the help of theoretical calculations, see references [5] and [6b]
    • 12-Center-2-electron long Ci-C bonds in the π dimer of 2,5,8-tri-tert-butylphenalenyl were experimentally demonstrated with the help of theoretical calculations, see references [5] and [6b].
  • 53
    • 79955582623 scopus 로고    scopus 로고
    • 3-Oxophenalenoxyl derivatives are topological isomers of 6OPO and easily form Ï dimers by Ï-bond formation between carbon atoms with large spin densities, see
    • 3-Oxophenalenoxyl derivatives are topological isomers of 6OPO and easily form Ï dimers by Ï-bond formation between carbon atoms with large spin densities, see
  • 59
    • 79955638296 scopus 로고    scopus 로고
    • A tetrabutylammonium salt of anion of 1 was used for CV measurements, see references [5] and [24]
    • A tetrabutylammonium salt of anion of 1 was used for CV measurements, see references [5] and [24].
  • 61
    • 77649131466 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2010, 49, 1678-1682.
    • (2010) Angew. Chem. Int. Ed. , vol.49 , pp. 1678-1682
  • 65
    • 65149091015 scopus 로고    scopus 로고
    • references therein.
    • P. Karafiloglou, J. Chem. Phys. 2009, 130, 164103 and references therein.
    • (2009) J. Chem. Phys. , vol.130 , pp. 164103
    • Karafiloglou, P.1
  • 68
    • 0003456933 scopus 로고
    • The parameters used for the Hückel MO calculations were adopted from the literature, see, for oxygen, references [13] and [18]; for other atoms, see:, Wiley, New York.
    • The parameters used for the Hückel MO calculations were adopted from the literature, see, for oxygen, references [13] and [18]; for other atoms, see:, A. Streitwieser, Jr., Molecular Orbital Theory for Organic Chemists, Wiley, New York, 1961.
    • (1961) Molecular Orbital Theory for Organic Chemists
    • Streitwieser Jr., A.1
  • 69
    • 79955598349 scopus 로고    scopus 로고
    • 9=24310
    • 9=24310.
  • 70
    • 79955629239 scopus 로고    scopus 로고
    • For a three-dimensional intermolecular spin interaction through a curved π-conjugated system, we synthesized phenalenyl-fused corannulene and a corannulene with two phenoxyl radicals
    • For a three-dimensional intermolecular spin interaction through a curved π-conjugated system, we synthesized phenalenyl-fused corannulene and a corannulene with two phenoxyl radicals, see
  • 72
    • 79955617024 scopus 로고    scopus 로고
    • ref26
    • ref26.
  • 73
    • 79955622137 scopus 로고    scopus 로고
    • Jpn. Kokai Tokkyo Koho, JP 2007227186A
    • Y. Morita, T. Okafuji, M. Satoh, Jpn. Kokai Tokkyo Koho, JP 2007227186A, 2007
    • (2007)
    • Morita, Y.1    Okafuji, T.2    Satoh, M.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.