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Volumn 631, Issue 13-14, 2005, Pages 2820-2829

Non-racemic tin(IV) complexes containing P-chirogenic phosphinomethyl- phenolate ligands

Author keywords

Chiral phosphines; Chirality; Structure determination; Tin

Indexed keywords


EID: 27644440392     PISSN: 00442313     EISSN: None     Source Type: Journal    
DOI: 10.1002/zaac.200500163     Document Type: Article
Times cited : (20)

References (62)
  • 24
    • 27644557032 scopus 로고    scopus 로고
    • note
    • IV coordination by a chiral phosphine. The complex was only prepared as racemate, however.
  • 27
    • 27644535313 scopus 로고    scopus 로고
    • note
    • Anionic phosphines are conveniently subdivided into those having the anionic function directly attached to phosphorus, as is the case in phosphinomethanides and phosphinoamides, and into those having the anionic function more remote from phosphorus. The negative charge directly adjacent to phosphorus in phosphinomethanides and phosphinoamides considerably enhances the electron density and donor capacity of their phosphino groups, while the second type of ligands resembles more closely neutral phosphines in its donor capacity. Phosphino alcoholates generally fall into this second class of anionic phosphines.
  • 44
    • 0003830607 scopus 로고    scopus 로고
    • Rep. ORNL-6895, Oak Ridge National Laboratory, Oak Ridge, TN, USA
    • C. K. Johnson, M. N. Burnett, ORTEP-III (version 1.0.2), Rep. ORNL-6895, Oak Ridge National Laboratory, Oak Ridge, TN, USA; 1996.
    • (1996) ORTEP-III (Version 1.0.2)
    • Johnson, C.K.1    Burnett, M.N.2
  • 45
    • 0040401100 scopus 로고    scopus 로고
    • University of Glasgow, Glasgow, Scotland, U.K.
    • Windows version: L. J. Farrugia, University of Glasgow, Glasgow, Scotland, U.K., 1999.
    • (1999) Windows Version
    • Farrugia, L.J.1
  • 46
    • 0034474897 scopus 로고    scopus 로고
    • The refinable absolute structure parameter x may take on values between 0.0 and 1.0. If it refines to 0.0 the chirality or polarity of the refined structure corresponds to that of the crystal, if x = 1.0 refined structure and the crystal have opposite chirality/polarity. Intermediate values of x are possible. They indicate racemic twins, x = 0.5 pointing to identical twin domains. As usual, for assessing the significance of x the estimated standard deviation σ, as given in units of the last significant figure in parentheses, is crucial. If one conservatively estimates the error to be ±3 σ it becomes clear that, e. g., x = 0.0(2) does not allow to distinguish between enantiomers while x = 0.00(2) does: H. D. Flack, G. Bernardinelli, J. Appl. Cryst. 2000, 33, 1143;
    • (2000) J. Appl. Cryst. , vol.33 , pp. 1143
    • Flack, H.D.1    Bernardinelli, G.2
  • 53
    • 27644447900 scopus 로고    scopus 로고
    • note
    • Alternatively, the structure may be described as a tetrahedron of lithium atoms with the oxygen atoms capping the tetrahedral faces. We prefer the description as heterocubane, however, as this reflects more the actual bonding interactions between lithium and oxygen.
  • 61
    • 27644471018 scopus 로고    scopus 로고
    • note
    • Similar experiments were not possible for 5, as this compound could not be subjected to chiral HPLC, as described above.
  • 62
    • 27644485031 scopus 로고    scopus 로고
    • note
    • The same applies for the structure of 5-rac not shown in this paper.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.