The vibration-rotation Raman spectra of 18O2, 17O18O, 17O2 and 16O2
β Scribed by H. G. M. Edwards; D. A. Long; K. A. B. Najm; M. Thomsen
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 410 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0377-0486
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The 5βmethyl(^15^N~2~)[__O__^2^,__O__^4^β^17^O~2~]uridine (= (^15^N~2~)[__O__^2^,__O__^4^β^17^O ~2~]ribosylthymine; 15) was synthesized and analyzed by ^15^Nβ and ^17^OβNMR spectroscopy. (^15^N~2~)Urea was condensed with 2,3βdibromoβ2βmethylpropanoyl chloride (3) and cyclized to form (^
## Abstract It it shown that the photoβoxidation of aromatic molecules containing an active methylene group can be used to introduce isotopic oxygen. Photoβoxidation of xanthene results in the formation of xanthone with the oxygen label appearing in the product at the carbonyl group. In this way, 1
Natural abundance 17O NMR spectra of some 2-phenylmethylene cyclic ketones are reported. The 17O shifts vary with the ring system, and correlate well with those of the corresponding cyclic ketones. 1997