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Volumn 75, Issue 24, 2010, Pages 8422-8434

Effect of transition state aromaticity and antiaromaticity on intrinsic barriers of proton transfers in aromatic and antiaromatic heterocyclic systems; An ab initio study

Author keywords

[No Author keywords available]

Indexed keywords

AB INITIO STUDY; ANTIAROMATIC SYSTEMS; ANTIAROMATICITY; AROMATIC STABILIZATION ENERGIES; AROMATIC SYSTEM; AROMATICITIES; CHARGE DELOCALIZATION; CYCLIC SYSTEMS; HETEROCYCLIC SYSTEMS; INTRINSIC BARRIERS; LINEAR REFERENCE SYSTEMS; POLARIZABILITY EFFECTS; PROTON AFFINITY; PROTON TRANSFER REACTIONS; PROTONATED SPECIES; REACTION COORDINATES; REFERENCE SYSTEMS; TRANSITION STATE;

EID: 78650387997     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo101719z     Document Type: Article
Times cited : (12)

References (64)
  • 1
    • 78650359296 scopus 로고    scopus 로고
    • 1 ‡ = Δ H -1‡ when Δ H ° = 0
    • 1 ‡ = Δ H -1‡ when Δ H ° = 0
  • 8
    • 78650362011 scopus 로고    scopus 로고
    • A reactant stabilizing factor that is lost ahead of bond changes increases the intrinsic barrier while a reactant stabilizing factor whose loss lags behind bond changes lowers the intrinsic barrier
    • A reactant stabilizing factor that is lost ahead of bond changes increases the intrinsic barrier while a reactant stabilizing factor whose loss lags behind bond changes lowers the intrinsic barrier.
  • 9
    • 78650391470 scopus 로고    scopus 로고
    • For reactant and product de stabilizing factors all the above relations are reversed, e.g., a product destabilizing factor that lags behind bond changes lowers the intrinsic barrier, etc
    • For reactant and product de stabilizing factors all the above relations are reversed, e.g., a product destabilizing factor that lags behind bond changes lowers the intrinsic barrier, etc.
  • 26
    • 78650365112 scopus 로고    scopus 로고
    • For earlier important work on solvation, see refs 12 and 13
    • For earlier important work on solvation, see refs 12 and 13.
  • 29
    • 78650361497 scopus 로고    scopus 로고
    • Polarizability effects drop off with the fourth power of distance while inductive effects drop off with square of distance. (15)
    • Polarizability effects drop off with the fourth power of distance while inductive effects drop off with square of distance. (15)
  • 36
    • 78650370037 scopus 로고    scopus 로고
    • See paragraph concerning Supporting Information at the end of this article
    • See paragraph concerning Supporting Information at the end of this article.
  • 39
    • 78650405647 scopus 로고    scopus 로고
    • 2) single bonds typically range from 1.45 to 1.48 Å while C=C double bonds typically range from 1.31 to 1.34 Å. (23)
    • 2) single bonds typically range from 1.45 to 1.48 Å while C=C double bonds typically range from 1.31 to 1.34 Å. (23)
  • 41
    • 78650314718 scopus 로고    scopus 로고
    • 3Al is 1.957 Å. (25)
    • 3Al is 1.957 Å. (25)
  • 43
    • 78650323573 scopus 로고    scopus 로고
    • The B-C bond in trimethyl borane is 1.560 Å. (27)
    • The B-C bond in trimethyl borane is 1.560 Å. (27)
  • 48
    • 78650396246 scopus 로고    scopus 로고
    • NICS(1) values determined 1 Å above the ring center have recently been recognized as being a more reliable measures of aromaticity compared to NICS(0) evaluated at the center. (29b)
    • NICS(1) values determined 1 Å above the ring center have recently been recognized as being a more reliable measures of aromaticity compared to NICS(0) evaluated at the center. (29b)
  • 49
    • 78650403746 scopus 로고    scopus 로고
    • The P-C bond lengths referred to are summarized in Figures S7 and S9 in Supporting Information. (19)
    • The P-C bond lengths referred to are summarized in Figures S7 and S9 in Supporting Information. (19)
  • 50
    • 78650371250 scopus 로고    scopus 로고
    • The BSSE (basis set superposition error) corrections were estimated by the counterpoise method. (33)
    • The BSSE (basis set superposition error) corrections were estimated by the counterpoise method. (33)
  • 52
    • 78650372879 scopus 로고    scopus 로고
    • α(SMe) = -0.68 for the polarizability. (35)
    • α(SMe) = -0.68 for the polarizability. (35)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.