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Volumn 1, Issue 5, 2006, Pages 678-685

Anions and polyanions of oligoindenopyrenes: Modes of electron delocalization and dimerization

Author keywords

Aromaticity; Carbanions; Polyanions; Pyrene; Reduction

Indexed keywords


EID: 33845249447     PISSN: 18614728     EISSN: 1861471X     Source Type: Journal    
DOI: 10.1002/asia.200600174     Document Type: Article
Times cited : (13)

References (58)
  • 1
    • 33845258710 scopus 로고    scopus 로고
    • For a recent collection of comprehensive reviews on different aspects of aromaticity, see: Chem. Rev. 2001, 101(5).
    • (2001) Chem. Rev. , vol.101 , Issue.5
  • 6
    • 33845248367 scopus 로고    scopus 로고
    • note
    • For convenience, a different numbering from that suggested by IUPAC was applied in assigning the atoms.
  • 7
    • 33845470260 scopus 로고
    • and references therein
    • a)K. Müllen, Chem. Rev. 1984, 84, 603, and references therein;
    • (1984) Chem. Rev. , vol.84 , pp. 603
    • Müllen, K.1
  • 8
    • 0001861889 scopus 로고
    • and references therein
    • b) M. Rabinovitz, Top. Curr. Chem. 1988, 146, 99, and references therein;
    • (1988) Top. Curr. Chem. , vol.146 , pp. 99
    • Rabinovitz, M.1
  • 10
    • 33845248612 scopus 로고    scopus 로고
    • note
    • HOMO-LUMO value;
  • 13
    • 0001506308 scopus 로고
    • for a different view that suggests that pyrene dianion is an aromatic system with a paratropic ring current
    • c) C. Schnieders, K. Müllen, W. Huber, Tetrahedron 1984, 40, 1701; for a different view that suggests that pyrene dianion is an aromatic system with a paratropic ring current, see:
    • (1984) Tetrahedron , vol.40 , pp. 1701
    • Schnieders, C.1    Müllen, K.2    Huber, W.3
  • 38
    • 33845263884 scopus 로고    scopus 로고
    • note
    • + stems from slight differences in the chemical shifts of C12 and C19.
  • 39
    • 33845254979 scopus 로고    scopus 로고
    • note
    • Partial carbon chemical shifts are available from HSQCSI measurements.
  • 42
    • 33845276950 scopus 로고    scopus 로고
    • note
    • The signals of the tert-butyl protons show an insignificant upfield shift.
  • 43
    • 33845239672 scopus 로고    scopus 로고
    • note
    • Such behavior was not observed for compounds 4-7.
  • 44
    • 33845266127 scopus 로고    scopus 로고
    • note
    • Proton 1-H is located closest of all the protons to the core of the molecule, where the ring-current effects are felt strongly, hence this proton has the largest downfield shift.
  • 45
    • 33845270959 scopus 로고    scopus 로고
    • note
    • A similar effect is observed when the temperature of the sample is reduced from 298 to 160 K. This is because the compound starts to precipitate as the temperature falls, thereby lowering the concentration of the solution.
  • 50
    • 33845238683 scopus 로고    scopus 로고
    • note
    • The shift to δ = 9.09 ppm is not solely due to diamagnetic ring currents. This proton lies between two structural "bays" that cause an additional low-field shift.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.