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Volumn 18, Issue 25, 2012, Pages 7705-7714

On the p-coordinating limit of NHC-phosphenium cations toward rh icenters

Author keywords

Carbene ligands; Dative bonds; Donor acceptor systems; Heterocycles; Phosphane ligands; Rhodium

Indexed keywords

CARBENE LIGANDS; DATIVE BONDS; DONOR-ACCEPTOR SYSTEM; HETEROCYCLES; PHOSPHANE LIGANDS;

EID: 84862620074     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.201104046     Document Type: Article
Times cited : (35)

References (57)
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    • According to L. C. Allen, electronegativity is the "third dimension" of the Periodic Table; a) L. C. Allen, J. Am. Chem. Soc. 1989, 111, 9003
    • (1989) J. Am. Chem. Soc. , vol.111 , pp. 9003
    • Allen, L.C.1
  • 18
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    • Although a dative bond can be considered as intermediate between a pure (homopolar) covalent bond and a pure ionic bond (in the valence bond approach), thus varying with polarity so that very polar bonds are definitely nondative; for example, in the gas phase, the heterolytic bond dissociation energy (BDE) of the highly polar +qH-F-q bond (m=1.826 D, q=0.225 e) is two times greater (1548 kJmol-1) than the corresponding homolytic BDE (569 kJmol-1); this homolytic dissociation preference for such a neutral motif is actually due to the electrostatic cost of the H+Fcharge separation in the heterolytic mode; in the case of ionic motifs, such as amidiniophosphanes, the electrostatic cost is cancelled, thus possibly confering a dative nature to bonds between atoms of similar electronegativities (even if the bond is weakly polar with respect to the bond center when the charge is uniformly delocalized between the two atoms in the ground state); for relevant discussions, see: a) R. S. Mulliken, W. B. Person, Ann. Pharm. Belg. Ann. Rev. Phys. Chem. 1962, 13, 107
    • (1962) Ann. Pharm. Belg. Ann. Rev. Phys. Chem. , vol.13 , pp. 107
    • Mulliken, R.S.1    Person, W.B.2
  • 45
    • 84862634019 scopus 로고    scopus 로고
    • US Patent Application Serial No 10/653, 688 (September 2)
    • S. P. Nolan, US Patent Application Serial No 10/653,688 (September 2, 2003).
    • (2003)
    • Nolan, S.P.1
  • 47
    • 84862594373 scopus 로고    scopus 로고
    • CCDC-858972 (9a) CCDC-858973 (11a), CCDC-858974 (14), and CCDC-863842 (15) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge The Cambridge Crystallographic Data Centre via
    • CCDC-858972 (9a), CCDC-858973 (11a), CCDC-858974 (14), and CCDC-863842 (15) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif.
  • 53
    • 84862595610 scopus 로고    scopus 로고
    • http://sites.google.com/site/allouchear/Home/gabedit.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.