๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The use of the furfural conformational equilibrium as a precise temperature probe in 13C NMR

โœ Scribed by Suzanne Combrisson; Thierry Prange


Publisher
Elsevier Science
Year
1975
Weight
156 KB
Volume
19
Category
Article
ISSN
0022-2364

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


13C NMR chemical shift as a probe for es
โœ Shinji Ando; Toshiya Hironaka; Hiromichi Kurosu; Isao Ando ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 166 KB ๐Ÿ‘ 2 views

The relationships between 13 C NMR chemical shifts of aromatic carbons and the inter-ring torsion angles (ร‚) of two phenyl rings in biphenyl and its substituted derivatives were systematically examined. The chemical shifts of C1, C2 and C6 carbons (ฯ… C1 , ฯ… C2 and ฯ… C6 ) of the biphenyl group in the

Use of lanthanide shift reagents to prob
โœ Miquel Pons; Dennis Chapman ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 460 KB

The conformational analysis of short polymer chains involves the use of statistical models, and their predictions must be checked against experimental information. Ytterbium-induced shifts in the "C NMR spectra of fatty acids provide a non-perturbing, straightforward method of simultaneously obtaini

13C NMR of diterpenes: Use of the C-19 m
โœ Martine Taran; Bernadette Arreguy-San Miguel; Bernard Delmond; Michel Petraud; B ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 164 KB

The 13C NMR spectra of diterpenic derivatives having pimarane, isopirnarane and the (13s) rosane skeleton have been recorded. This analysis has shown that the chemical shift of the 19-CH3 group depends on the position of the tetrasubstituted double bond in these skeletons. The C-19 methyl group can

13C n.m.r. as a probe for the characteri
โœ J.Anthony MacPhee; Biswanath N. Nandi ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 229 KB

that the solvent tetralin may undergo a number of reactions other than simple donation of hydrogen to produce naphthalene. Previous studies",", concerned only with the reactions of the tetralin, have not reported compounds of these types, and thus the possibility that they are derived from the coal

Nitroxide radical as a probe for molecul
โœ Iwona Wawer; Dieter Strรถhl; Erich Kleinpeter ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 487 KB

## Abstract ^13^C NMR contact shifts induced by the 2,2,6,6,โ€tetramethylpiperidine nitroxide radical (TMPN) were measured for __N__,__N__โ€dimethylโ€__para__โ€substituted benzamides and __N__,__N__โ€dimethylโ€ฮฒโ€bromoโ€ and โ€ฮฑ,ฮฒโ€methylacrylamides. The shifts were linear functions of radical concentration,

13C NMR spectroscopy of the carbanion of
โœ J. van der Giessen; C. Gooijer; C. Maclean; N.H. Velthorst ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 243 KB

The ion pairs of indenyl-lithium and -sodium in dimethosyetbane have been investigated by 13C NirlR as a function of temperature. The results are in liie with optical absorption measurements on these systems. Furthermore, they support the interpretation of the temperature dependence of the 'H chemic