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Volumn 71, Issue 4, 2006, Pages 1592-1597

Protonated 2-methyl-1,2-epoxypropane: A challenging problem for density functional theory

Author keywords

[No Author keywords available]

Indexed keywords

2-METHYL-1,2-EPOXYPROPANE; DENSITY FUNCTIONAL THEORY; PROTONATED EPOXIDES; RING CARBONS;

EID: 33644554123     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo052303n     Document Type: Article
Times cited : (41)

References (56)
  • 28
    • 0003418036 scopus 로고
    • Yarkony, D. R., Ed.; World Scientific: Singapore
    • Bartlett, R. J. In Modern Electronic Structure Theory; Yarkony, D. R., Ed.; World Scientific: Singapore, 1995; pp 1047-1131.
    • (1995) Modern Electronic Structure Theory , pp. 1047-1131
    • In, B.R.J.1
  • 46
    • 33644501291 scopus 로고    scopus 로고
    • note
    • + at B3LYP/6-311++G** indicated that the Kohn-Sham orbitals were stable under the perturbations considered.
  • 47
    • 33644532678 scopus 로고    scopus 로고
    • note
    • + exhibits essentially no multireference character despite the presence of a slightly elongated C-O bond; the maximum double-excitation amplitude is only 0.02, and the coupled cluster T1 diagnostic is only 0.01, both far below established cutoffs for which the CCSD(T) approach is deemed suspect.
  • 50
    • 0035933457 scopus 로고    scopus 로고
    • Furthermore, the HOMO-LUMO natural-orbital occupation numbers are 1.93/0.05, indicating little diradical character to the bond. See: (c) Crawford, T. D.; Kraka, E.; Stanton, J. F.; Cremer, D. J. Chem. Phys. 2001, 114, 10638-10650.
    • (2001) J. Chem. Phys. , vol.114 , pp. 10638-10650
    • Crawford, T.D.1    Kraka, E.2    Stanton, J.F.3    Cremer, D.4
  • 51
    • 33644506934 scopus 로고    scopus 로고
    • note
    • + does not signicantly impact the exothermicity of the ring opening.
  • 53
    • 33644511557 scopus 로고    scopus 로고
    • note
    • +.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.