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Volumn 76, Issue 10, 2011, Pages 3861-3871

Quantification of the aromaticity of 2-alkylidenethiazolines subjected to push-pull activity

Author keywords

[No Author keywords available]

Indexed keywords

AROMATICITIES; BOND ORBITALS; LONE PAIR; NUCLEUS-INDEPENDENT CHEMICAL SHIFTS;

EID: 79956151005     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo200294f     Document Type: Article
Times cited : (15)

References (87)
  • 9
    • 33947180812 scopus 로고    scopus 로고
    • Tripos Inc., St. Louis, MO
    • SYBYL 7.1, Tripos Inc., St. Louis, MO, 2005.
    • (2005) SYBYL 7.1
  • 57
    • 0345491105 scopus 로고
    • Lee, C.; Yang, W.; Parr, R. G. Phys. Rev. 1988, 37, 785 This was the highest possible level for computation of ICSS. The lattice points ("ghost atoms") should be sensor points only without energy contribution in the present calculations. Only if HF calculations were applied did this prove to be true; in the case of electron correlation calculations, the "ghost atoms" get their own electron density and are of some influence on the energy of the studied molecule hereby. In these cases, the TSNMRS surfaces proved to become heavily distorted.
    • (1988) Phys. Rev. , vol.37 , pp. 785
    • Lee, C.1    Yang, W.2    Parr, R.G.3
  • 71
    • 79956086704 scopus 로고    scopus 로고
    • Geometry optimization of the s-trans/s-trans conformation of 1r actually gave the s-cis/s-trans conformation II
    • Geometry optimization of the s-trans/s-trans conformation of 1r actually gave the s-cis/s-trans conformation II.
  • 72
    • 0001017059 scopus 로고
    • Twist angle is defined as the angle between the bisectors of the 1,1- and 2,2-substituent angles on a Newman diagram projecting down the C - C bond of an olefin. See
    • Twist angle is defined as the angle between the bisectors of the 1,1- and 2,2-substituent angles on a Newman diagram projecting down the C - C bond of an olefin. See: Baum, K; Bigelow, S. S.; Nguyen, N. V.; Archibald, T. G. J. Org. Chem. 1992, 57, 235
    • (1992) J. Org. Chem. , vol.57 , pp. 235
    • Baum, K.1    Bigelow, S.S.2    Nguyen, N.V.3    Archibald, T.G.4
  • 76
    • 79956123511 scopus 로고    scopus 로고
    • In some compounds, there is still a small contribution of substituents anisotropic effects to the ICSS = 0.5 ppm, so that the values are somewhat higher
    • In some compounds, there is still a small contribution of substituents anisotropic effects to the ICSS = 0.5 ppm, so that the values are somewhat higher.
  • 87
    • 79956158302 scopus 로고    scopus 로고
    • The total contributions of the ring C-H bonds, N-H(Me, t -Bu), and C(2) - C(2′) bond are much smaller, especially to the out-of-plane magnetic shielding
    • The total contributions of the ring C-H bonds, N-H(Me, t -Bu), and C(2) - C(2′) bond are much smaller, especially to the out-of-plane magnetic shielding.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.