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Volumn , Issue 12, 2007, Pages 1221-1228

The [2,5,12-C3B8H15]- anion, the first representative of the eleven-vertex hypho family of tricarbaboranes

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTATIONAL METHODS; MASS SPECTROMETRY; NEGATIVE IONS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; SILICA; SINGLE CRYSTALS; X RAY DIFFRACTION;

EID: 33947100982     PISSN: 14779226     EISSN: 14779234     Source Type: Journal    
DOI: 10.1039/b618082e     Document Type: Article
Times cited : (9)

References (70)
  • 10
    • 0003489584 scopus 로고    scopus 로고
    • W. Siebert, Royal Society of Chemistry, Cambridge, p. 451
    • See, for example: J. D. Kennedy, in Advances in Boron Chemistry, ed., W. Siebert, Royal Society of Chemistry, Cambridge, 1997, p. 451
    • (1997) Advances in Boron Chemistry, Ed.
    • Kennedy In, J.D.1
  • 23
    • 19044365889 scopus 로고    scopus 로고
    • Structural assignments based on the ab initio/GIAO (or earlier IGLO)/NMR methods are quickly approaching a confidence level that rivals modern-day X-ray determinations of molecular structures
    • B. Grüner L. Mikuláek I. Císaová B. tíbr J. Organomet. Chem. 2005 690 2853
    • (2005) J. Organomet. Chem. , vol.690 , pp. 2853
    • Grüner, B.1    Mikuláek, L.2    Císaová, I.3    Tíbr, B.4
  • 31
    • 33947101571 scopus 로고    scopus 로고
    • note
    • The nearest-neighbour separations of the optimised geometries of compounds 2, 3, and 4 do not differ significantly from those computed for many related boranes and carboranes, i.e. they span the intervals of 1.71-1.86 Å for B-B and 1.58-1.69 Å for C-B (C-C in 4 was computed to be 1.534 Å, a value very close to that which appears in alkanes). The only exceptions are the extremely long B-B distances in 2 and 3: 2.000 Å for B(11)-B(14) and 1.949 Å for B(4)-B(11) in 2 and 3, respectively. The first distance is in very good accord with 2.009(2) Å as determined by the single-crystal X-ray diffraction analysis. The optimised geometries served as inputs for magnetic properties calculations. Comparisons of calculated shifts with experimental values reveal satisfactory agreement and, therefore, the calculations provide a good ground for believing that the RMP2(fc)/6-31G* internal coordinates can be deemed as good representations of the molecular geometries for these three compounds in their solutions
  • 54
    • 0003838469 scopus 로고    scopus 로고
    • Wiley-VCH, Weinheim, and references therein. It should be noted that hybrid functionals such as B3LYP need not be superior to pure, gradient-corrected functionals, as far as geometries of transition metal complexes are concerned, see for example:
    • See for example: W. Koch and M. C. Holthausen, in A Chemist's Guide to Density Functional Theory, Wiley-VCH, Weinheim, 2000
    • (2000) A Chemist's Guide to Density Functional Theory
    • Koch, W.1    Holthausen In, M.C.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.