Synthesis and 13C NMR Spectroscopy of 13C-Labeled α,ω-Diphenylpolyynes
摘要:
The synthesis of three C-13-labeled alpha,omega-diphenylpolyynes is described. The known positions of the labeled carbon atoms allow assignment of the resonances in the C-13 NMR spectra and identification of trends in the chemical shifts.
Synthesis and 13C NMR Spectroscopy of 13C-Labeled α,ω-Diphenylpolyynes
摘要:
The synthesis of three C-13-labeled alpha,omega-diphenylpolyynes is described. The known positions of the labeled carbon atoms allow assignment of the resonances in the C-13 NMR spectra and identification of trends in the chemical shifts.