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Volumn 115, Issue 5, 1996, Pages 275-285

Synthesis and characterization of 9,10-bis(arylimino)-9,10-dihydrophenanthrenes, the structure of (Z,Z)-9,10-bis(phenylimino)-9,10-dihydrophenanthrene and PdCl2-[(E,E)-9,10-bis(phenylimino)-9,10-dihydrophenanthrene] in the solid state and in solution

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EID: 2242434239     PISSN: 01650513     EISSN: None     Source Type: Journal    
DOI: 10.1002/recl.19961150504     Document Type: Article
Times cited : (34)

References (43)
  • 27
    • 85028796115 scopus 로고
    • A.T. Mason, Ber. 19, 112 (1886).
    • (1886) Ber. , vol.19 , pp. 112
    • Mason, A.T.1
  • 32
    • 33749286804 scopus 로고
    • This analysis gives the following values for the relevant parameters for residue 1 and 2: puckering amplitude (Q) = 0.339(4) and 0.374(4) Å, Θ = 68.4(7) and 114.2(6)° and Φ = 266.8(6) and 91.3(6)° respectivily. J.C.A. Boeyens, J. Cryst. Mol. Struct. 8, 317 (1978).
    • (1978) J. Cryst. Mol. Struct. , vol.8 , pp. 317
    • Boeyens, J.C.A.1
  • 36
    • 33749268745 scopus 로고    scopus 로고
    • note
    • Puckering amplitude (Q) = 0.206(13) Å, Θ = 114.4(36)° and Φ = 90.3(40)°.
  • 37
    • 33749293853 scopus 로고    scopus 로고
    • These results were verified by a NOE-difference measurement
    • These results were verified by a NOE-difference measurement.
  • 38
    • 33749279500 scopus 로고    scopus 로고
    • note
    • Reported chemical shifts in the case of camphorquinone diimines show a difference of at least 2 ppm between an E and a Z configuration, see Ref. 1.
  • 39
    • 33749310754 scopus 로고    scopus 로고
    • note
    • Even though the protons give a doublet the coalescence temperature can be established because of the large difference in chemical shift values.
  • 40
    • 33749278041 scopus 로고    scopus 로고
    • note
    • 13C-NMR on C(7) and C(11) gave the same activation energy but was less accurate, viz. 37.6 (±0.8) kJ/mol.
  • 41
    • 0000037198 scopus 로고
    • For conformational stability of bridged biphenyls at ambient temperatures, energy barriers of about 80 kJ/mol are necessary, see C. Jaime, J. Font, J. Org. Chem. 55, 2637 (1990).
    • (1990) J. Org. Chem. , vol.55 , pp. 2637
    • Jaime, C.1    Font, J.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.