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Volumn 80, Issue 10, 2015, Pages 5218-5225

Minimalist Relativistic Force Field: Prediction of Proton-Proton Coupling Constants in 1H NMR Spectra Is Perfected with NBO Hybridization Parameters

Author keywords

[No Author keywords available]

Indexed keywords

ATOMS; HYDROGEN; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY;

EID: 84929590438     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/acs.joc.5b00619     Document Type: Article
Times cited : (87)

References (79)
  • 14
    • 84929594613 scopus 로고    scopus 로고
    • Japan
    • National Institute for Advanced Industrial Science and Technology, Japan, http://sdbs.db.aist.go.jp/sdbs/cgi-bin/cre-index.cgi.
  • 15
    • 84929594614 scopus 로고    scopus 로고
    • Glendening, E. D.; Badenhoop, K.; Reed, A. E.; Carpenter, J. E.; Bohmann, J. A.; Morales, C. M.; Landis, C. R.; Weinhold, F. Theoretical Chemistry Institute; University of Wisconsin, Madison, 2013
    • Glendening, E. D.; Badenhoop, K.; Reed, A. E.; Carpenter, J. E.; Bohmann, J. A.; Morales, C. M.; Landis, C. R.; Weinhold, F. Theoretical Chemistry Institute; University of Wisconsin, Madison, 2013.
  • 16
    • 84929594615 scopus 로고    scopus 로고
    • note
    • We suggest that the corrections accounting for these "missing" contributions to SSCCs should correlate with the p-character of the hybrid orbitals (for example, a non-zero contribution from spin-orbit coupling necessarily requires orbital angular momentum). On the contrary, if parametric corrections were needed primarily to refine the dominating contributor, i.e., the Fermi contacts, one would expect these corrections to correlate with the s-character of the hybrid orbitals, not p.
  • 71
    • 84929594617 scopus 로고    scopus 로고
    • note
    • Note that proton 1″a in Capon's paper is listed as 2.79 ppm dd 11.0, 3.7 Hz, with 11.0 being a typo.
  • 76
    • 84929594618 scopus 로고    scopus 로고
    • note
    • It is important to note that in the DU8 approach the actual computations of Fermi contacts take less than a third of the total computational time. Nearly two-thirds of computational time is used for computing the isotropic components of the magnetic shielding tensors at the GIAO, mPW1PW91/6-311+G(d,p) level of theory to obtain chemical shifts, with the reminder of the time spent for geometry optimization. Without chemical shifts, accurate SSCCs for penicilleremophilane B are obtained in less than 6 min of computational (wall) time.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.