메뉴 건너뛰기




Volumn 44, Issue 14, 2005, Pages 5030-5041

Oxygen-bridged borate anions from tris(pentafluorophenyl)borane: Synthesis, NMR characterization, and reactivity

Author keywords

[No Author keywords available]

Indexed keywords


EID: 22544447378     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic0502168     Document Type: Article
Times cited : (84)

References (57)
  • 16
    • 22544469839 scopus 로고    scopus 로고
    • note
    • 12
  • 18
    • 22544475435 scopus 로고    scopus 로고
    • note
    • Even if nine lines only were detectable in this multiplet, the experimental intensity ratio between these components corresponded well to the theoretical 0.015:0.18:1:3.3:7.5:12:14:12:7.5:3.3:1:0.18:0.015 ratio (Figure S3). The observed averaged JHF corresponded well to the expected value, i.e., (17 x 2)/12.
  • 19
    • 22544485822 scopus 로고    scopus 로고
    • note
    • The nature of the exchange processes has been deduced mainly on the basis of the correlations in the meta region, since the cross-peaks in the ortho region were affected also by dipolar and scalar contributions, and the para region is intrinsically less informative.
  • 20
    • 22544481588 scopus 로고
    • Wiley-Interscience Publishers: New York, Chapter VI
    • This system can be assimilated to a reversible two-step A ↔ B ↔ C reaction, in which the direct and the reverse kinetic constants in each step are equal. Moreover, in the present case, the kinetic constant from A to B is equal to that from C to B. In these hypotheses the kinetic constant for the A-C conversion should be half that for the A-B conversion: Bernasconi, C. F. Investigation of rates and Mechanisms of Reactions. In Techniques of Chemistry, 4th ed.; Weissemberger, A., Ed.; Wiley-Interscience Publishers: New York, 1986; Vol. VI, Part I, Chapter VI, p 449.
    • (1986) Techniques of Chemistry, 4th Ed. , vol.6 , Issue.1 PART , pp. 449
    • Weissemberger, A.1
  • 36
    • 22544470124 scopus 로고    scopus 로고
    • note
    • 29 salt of 1 showed a short N-O contact of ca. 273 pm.
  • 39
    • 22544437107 scopus 로고    scopus 로고
    • note
    • + cation of the anions 2 and/or 3 does occur (as revealed by a cross-peak in the 2D EXSY map of Figure S4), but it is too slow to lead to averaged signals.
  • 44
    • 0037150942 scopus 로고    scopus 로고
    • At the MP2(fc)/aug-cc-pVQZ level O-H and H⋯O bond distances are equal to 1.125 and 1.342 Å. Samson, C. C. M.; Klopper, W. J. Mol. Struct.: THEOCHEM 2002, 586, 201.
    • (2002) J. Mol. Struct.: THEOCHEM , vol.586 , pp. 201
    • Samson, C.C.M.1    Klopper, W.2
  • 51
    • 22544469270 scopus 로고    scopus 로고
    • note
    • The electrostatic potential was computed at the PM3 semiempirical level, employing the solid-state geometries. The calculations were performed with SPARTAN 02; Wavefunction Inc.: Irvine, CA, 2002.
  • 55
    • 0004283942 scopus 로고    scopus 로고
    • Universität Göttingen, Göttingen, Germany
    • Sheldrick, G. M. SADABS; Universität Göttingen, Göttingen, Germany, 1996.
    • (1996) SADABS
    • Sheldrick, G.M.1
  • 57
    • 0004150157 scopus 로고    scopus 로고
    • Universität Göttingen, Göttingen, Germany
    • Sheldrick, G. M. SHELX97; Universität Göttingen, Göttingen, Germany, 1997.
    • (1997) SHELX97
    • Sheldrick, G.M.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.