The trifluoroacetyl derivatives of alditols are convenient compounds for mass spectrometric investigation as they are easily obtainable and highly volatile. They show simple fragmentation patterns with intensive peaks in the high mass range. Trifluoroacetates of alditols may be used for detection an
Vibrational spectra of trifluoroacetates
β Scribed by Karl O. Christe; Dieter Naumann
- Book ID
- 113373076
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 567 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1386-1425
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Electron ionization mass spectra for trifluoroacetate (TFA) derivatives of aldose, ketose, and deoxyaldose O-methyloximes are reported. Typical fragmentation patterns include loss of F, CH,O, CF,CO, or CF,CO, fragments from the generally observable parent ion, as well as cleavage between each of the
## Abstract ^13^C chemical shifts and ^13^Cο£Ώ^205^Tl spinβspin coupling constants are reported for phenylthallium(III) bis(trifluoroacetate) and some of its monoβ and dimethyl derivatives. The signs of ^__n__^__J__(^13^C, ^205^Tl) relative to ^__n__+1^__J__(^1^H, ^205^Tl) are determined by offresona