Phosphorus-31 NMR spectroscopy in stereochemical analysis

Verkade, J. G.; Quin, Louis D.; Jones, S.L.

doi:10.1016/s0003-2670(00)81921-2

Cited by 98 publications

(136 citation statements)

References 0 publications

Supporting

Mentioning

109

Contrasting

Unclassified

Order By: Relevance

“…In since the hybridization of the phosphorus atom in 2 is sp 2 versus sp 3 in tertiary phosphanes. [16] More interesting inforthe 13 C-NMR spectrum, the coordination induces an upfield shift which correlates with the distance to the phos-mation can be retrieved from an examination of bond lengths and angles within the ring. The value of the internal phorus atom.…”

Section: Scheme 1 Synthesis Of Complexmentioning

confidence: 99%

Synthesis, X-ray Crystal Structures and Reactivity Towards Alkynes of Gold(I)–Phosphinine Complexes

Mézailles

Ricard

Mathey

et al. 1999

Eur. J. Inorg. Chem.

View full text Add to dashboard Cite

Section: Scheme 1 Synthesis Of Complexmentioning

confidence: 99%

Synthesis, X-ray Crystal Structures and Reactivity Towards Alkynes of Gold(I)–Phosphinine Complexes

Mézailles

Ricard

Mathey

et al. 1999

Eur. J. Inorg. Chem.

View full text Add to dashboard Cite

“…Phosphorus-3 1 NMR is one of the most important tools available for characterizing the structure and conformation of organophosphorus compounds (1,2). Numerous studies have been 1 carried out to examine the influence of electronic and molecular structure on 31P chemical shifts (3)(4)(5)(6).…”

mentioning

confidence: 99%

Phosphorus-31 NMR studies of several phosphines in the solid state

Penner¹,

Wasylishen²

1989

Can. J. Chem.

View full text Add to dashboard Cite

Phosphorus-3 1 NMR powder spectra and high resolution MAS spectra have been obtained for a number of solid phosphines under conditions of high-power proton decoupling and cross-polarization. The principal components of the 3'P chemical shift tensor obtained from static powder spectra or slow MAS spectra are discussed in terms of the known structures of many of the phosphines. The C P / MAS 3 1~ NMR spectra are used to determine the number of crystallographically nonequivalent molecules in thk unit cell. The NMR results are consistent with data available from X-ray diffraction. In one case there is evidence of polymorphism. Mots clis : RMN du 3 1~ de phosphines solides, composantes principales des tenseurs du dCplacement chimique du "P, non-tquivalence cristallographique St partir des spectres rmn C P / MAS du 3'P.

show abstract

“…The magnitude of these couplings implies that the phosphorus lone pair is situated close to the benzylic methylene carbons but is remote from the methine carbons. 9 The small value of the 3 J C P coupling constants (3.7 and 3.1 Hz) for the 55 cyclohexane carbons supports the assignment of an axial phenyl and an equatorially disposed lone pair at the phosphorus. The observation of an apparent single species in solution by NMR spectroscopy invites the conclusion that the synthesis produces only one isomer and that the introduction of the phosphorus unit locks out a single conformer where the 65 stereochemistry at the nitrogens is defined by the stereogenic carbons.…”

mentioning

confidence: 68%