ISSN:
0749-1581
Keywords:
NMR
;
2D NMR
;
1H NMR
;
13C NMR
;
31P NMR
;
Rh(I) chelates of 2,3-bis(O-diphenylphosphino)-D-glucopyranosides
;
conformation
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The 1H, 13C and 31P NMR spectra of the 2,3-bis(O-diphenylphosphino)-β-D-glucopyranoside rhodium(I) chelates 1 and 2 were recorded in CDCl3 solution and the spectral assignments were performed with 1D and 2D techniques. In both complexes the pyranoside ring has a chair conformation. For the seven-membered chelate ring a twist-boat conformation could be established for 1, whereas for 2 the expected twist-chair conformation was found. The phenyl groups at the P atoms show unhindered rotation about the Cphenyl—P bonds and the COD ligand seems to rotate about the Rh—COD axis slowly on the NMR time-scale.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260331013
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