Splittings, 6,, were observed for each carbon atom, C,, of chalcone in spectra obtained from coaxial 5 and 10 mm NMR sample tubes containing solutions equimolar in the concentration of the ketone and of TFA or TFA-d as hydrogen-bond donors, respectively. It was found that a linear expression, S,A,+x
โฆ LIBER โฆ
A 19F NMR study of the asymmetric short hydrogen bond in the crystalline adduct between potassium fluoride and succinic acid
โ Scribed by E.A. Moore; M. Mortimer; N.F. Peirson; G. Oates
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 337 KB
- Volume
- 151
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
An NMR method for investigating strong hydrogen bonding in solids is demonstrated for the adduct, KF.(CH2C02H)2.
A procedure for analysmg the 19F NMR FID for KF.(CH2C02H), is described and the results for the geometry of the 0-H...F... H-O hydrogen-bonded system are compared with those of the X-ray structure. The value of the H...F bond length is found to be 0.148 k 0.003 nm which is significantly shorter than that determined by X-ray analysis.
๐ SIMILAR VOLUMES
Solvent-induced isotope effects in NMR s
โ
Lech Kozerski
๐
Article
๐
1982
๐
John Wiley and Sons
๐
English
โ 397 KB