메뉴 건너뛰기




Volumn 22, Issue 11, 2003, Pages 2202-2208

Binding of specialty phosphines to metals: Synthesis, structure, and solution calorimetry of the phosphirane complex [PtMe2(iPrBABAR-Phos)2]

Author keywords

[No Author keywords available]

Indexed keywords

CALORIMETRY; ELECTRONS; ENTHALPY; MOLECULAR STRUCTURE; PHOSPHORUS COMPOUNDS; PROBABILITY DENSITY FUNCTION; REACTION KINETICS; SUBSTITUTION REACTIONS; SYNTHESIS (CHEMICAL); X RAY DIFFRACTION ANALYSIS;

EID: 0038262773     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om020642q     Document Type: Article
Times cited : (22)

References (43)
  • 20
    • 0008493521 scopus 로고    scopus 로고
    • For Pt(0) phosphine complexes the Pt-P bonds are about 0.03-0.05 Å longer than the lengths determined experimentally; see: Udin, J.; Dapprich, S.; Frenking, G.; Yates, B. F. Organometallics 1999, 18, 458.
    • (1999) Organometallics , vol.18 , pp. 458
    • Udin, J.1    Dapprich, S.2    Frenking, G.3    Yates, B.F.4
  • 26
    • 0037945055 scopus 로고    scopus 로고
    • note
    • 2 fragments on the left and right sides of the reactions equation and the free and bonded forms of cod should be almost equal. The contributions which are evoked by different conformations of the substituents R in the free and complex forms of the phosphines are difficult to evaluate. However, as we discussed above, we have no indication of any unfavorable steric interactions of the BABAR-Phos ligands in the coordination sphere of 3. Furthermore, BABAR-Phos molecules have a very rigid structure, which does not change much upon complexation. This can be shown by the comparison between a number of related BABAR-Phos ligands and their complexes, whose structures we determined by X-ray analyses (Liedtke, J. ETH-Dissertation No. 13688, 2000). Therefore, it can be assumed that the small enthalpy reported here is mainly due to a low Pt-P binding energy.
  • 34
    • 0037945056 scopus 로고    scopus 로고
    • note
    • It has to be remembered that the accuracy of computed entropic contributions to the free energies are suspect, due to the fact that (a) gas-phase entropies are not the same as the solution-phase entropies, which are chemically relevant, and (b) Gaussian 98 uses harmonic oscillator partition functions for the low-frequency, hindered rotations in the complexes.
  • 35
    • 0037607032 scopus 로고
    • CDA 2.1; Marburg, Germany
    • Dapprich, S.; Frenking, G. CDA 2.1; Marburg, Germany, 1994.
    • (1994)
    • Dapprich, S.1    Frenking, G.2
  • 41
    • 0004150157 scopus 로고    scopus 로고
    • Universität Göttingen, Göttingen, Germany
    • Sheldrick, G. M. SHELX 97; Universität Göttingen, Göttingen, Germany, 1997.
    • (1997) SHELX 97
    • Sheldrick, G.M.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.