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Volumn 113, Issue 43, 2009, Pages 12035-12043

H/Br exchange in BBr3 by HSiR3(R = H, CH3, C2H5): Origin of DFT failures to describe a seemingly innocuous reaction barrier

Author keywords

[No Author keywords available]

Indexed keywords

BARRIER HEIGHTS; BASIS SETS; BOND FORMATION; CBS-QB3; DISPERSION CORRECTION; DISPERSION INTERACTION; EXCELLENT PERFORMANCE; EXCHANGE REACTION; FUNCTIONALS; HYBRID FUNCTIONALS; PLESSET PERTURBATION THEORY; QUANTUM CHEMICAL STUDIES; REACTION BARRIERS; RELATED SYSTEMS; SECOND ORDERS; TRANSITION STATE;

EID: 70350405341     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp906502y     Document Type: Article
Times cited : (12)

References (96)
  • 41
    • 70549104970 scopus 로고    scopus 로고
    • revision 2.6.35; Universität Bonn: Germany
    • Neese, F. Orca, revision 2.6.35; Universität Bonn: Germany, 2008.
    • (2008) Orca
    • Neese, F.1
  • 61
    • 0031576963 scopus 로고    scopus 로고
    • Please note that in these calculations the B3LYP functional has been used in a slightly modified form implemented in TURBOMOLE and ORCA, which makes use of the local VWN5 correlation functional instead of the VWN3 functional employed in the GAUSSIAN program: see Hertwig, R. H.; Koch, W. Chem. Phys. Lett. 1997, 268, 345. The particular choice of functional, however, was found to cause insignificant changes in the computed results only (0.2 kcal/mol).
    • (1997) Chem. Phys. Lett. , vol.268 , pp. 345
    • Hertwig, R.H.1    Koch, W.2
  • 71
    • 70350414680 scopus 로고    scopus 로고
    • note
    • We have identified partly erroneous implementations of the standard SVP and TZVP basis sets for Br in ORCA up to version 2.6.35, i.e., faulty contraction coefficients and/or d-polarization exponents; these errors have been brought to the attention of the ORCA developers and are corrected in. subsequent program versions.
  • 85
    • 26244461462 scopus 로고    scopus 로고
    • instead of the TZVP basis. We performed B3LYP/def2-TZVP and B3LYP/ def2-TZVPP single-point calculations based on B3LYP/TZVP geometries and found only negligible differences for relative energies and barrier heights (deviations ranging from-0.5 to +0.8 kcal/mol, see Table S2, Supplementary information)
    • A referee suggested the use of the newly devised def2-TZVP basis set (Weigend, F.; Ahlrichs, R. Phys. Chem. Chem. Phys. 2005, 7, 3297.) instead of the TZVP basis. We performed B3LYP/def2-TZVP and B3LYP/ def2-TZVPP single-point calculations based on B3LYP/TZVP geometries and found only negligible differences for relative energies and barrier heights (deviations ranging from-0.5 to +0.8 kcal/mol, see Table S2, Supplementary information).
    • (2005) Phys. Chem. Chem. Phys. , vol.7 , pp. 3297
    • Weigend, F.1    Ahlrichs, R.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.