ISSN:
0749-1581
Schlagwort(e):
77Se NMR
;
indirect detection
;
selenophene
;
benzeneselenol
;
dimethyl selenide
;
dimethyl diselenide
;
selenomethionine
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
77Se was measured by inverse proton detection using multiple-quantum 1H-{77Se} correlation spectroscopy. One-and two-dimensional heteronuclear multiple quantum coherence (HMQC) experiments are reported for selenophene, benzeneselenol, dimethyl selenide, dimethyl diselenide, and D,L-selenomethionine with a range of 77Se—1H coupling constants from 9.5 to 54.2 Hz. In these compounds having protons with different 77Se—1H coupling constants the different correlations can be selectively enhanced by varying the mixing time. The enhancement for indirect versus direct 77Se detection was estimated for dimethyl selenide yielding a value close to the theoretical enhancement.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/mrc.1260330307
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