ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
1H and 13C NMR data are reported for pentane-2,4-dione tellurium(II) compounds which contain a 6-membered tellurane ring bearing methyl or ethyl substituents. The 125TeCH coupling constants are particularly interesting in that they are highly stereospecific, viz. ∼60 Hz and 0-8 Hz for equatorial and axial protons, respectively, in the chair conformation. 1J(TeC) and 2J(TeCC) couplings lie in the ranges 118-146 Hz and 44-49 Hz, respectively. Geminal HCH couplings in these compounds (9-11 Hz) are lower than analogous values in tellurane or in cyclohexane-1,3-diones.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270110906
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