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Volumn 25, Issue 4, 2006, Pages 954-960

Supramolecular trans-coordinating phosphine ligands

Author keywords

[No Author keywords available]

Indexed keywords

HYDROGEN BONDS; NEGATIVE IONS; PALLADIUM COMPOUNDS; PHOSPHORUS; SOLUTIONS; SUPRAMOLECULAR CHEMISTRY; UREA;

EID: 33644549379     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om050865r     Document Type: Article
Times cited : (63)

References (49)
  • 16
    • 0035323797 scopus 로고    scopus 로고
    • and references therein
    • (b) Bessel, C. A.; Aggarwal, P. Chem. Rev. 2001, 101, 1031, and references therein.
    • (2001) Chem. Rev. , vol.101 , pp. 1031
    • Bessel, C.A.1    Aggarwal, P.2
  • 27
    • 33644507650 scopus 로고    scopus 로고
    • note
    • The structures of the complexes were generated using TITAN and were optimized using DFT optimization (B3LYP, 6-3IG**).
  • 41
    • 33644521140 scopus 로고    scopus 로고
    • note
    • 31P NMR spectrum due to the equilibrium between these three species.
  • 42
    • 33644517795 scopus 로고    scopus 로고
    • note
    • 1H NMR spectrum, and it is believed to be due to decomposition of 4 that ultimately occurs in solution over several days.
  • 43
    • 33644510966 scopus 로고    scopus 로고
    • note
    • 2PdMeCl was identified by comparison with a separate NMR tube experiment.
  • 45
    • 33644522624 scopus 로고    scopus 로고
    • note
    • The major species present in solution (between -80 and -40°C) is the four-coordinate CO-adduct, which was followed by variable-temperature NMR spectroscopy, and it formed the acetyl complex. Below -70°C, an unidentifiable minor species is observed in solution, and this complex is a potential intermediate that ultimately results in the formation of the acetyl product.
  • 47
    • 33644504751 scopus 로고    scopus 로고
    • note
    • Since the CO and methyl groups should be arranged cis with respect to one another for facile migratory insertion to occur and these palladium complexes were never observed in this coordination mode, the carbonylation must occur immediately upon rearrangement to the cis species, which is followed by a successive rearrangement to the thermodynamic trans-acetyl product.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.