Abstract

AbstractThe high‐field 1H, 19F and 13C NMR spectra of spiperone in CDCl3 solution were analyzed with the aid of homonuclear (H‐H‐COSY) and heteronuclear (H,C‐COSY) chemical shift correlation experiments. Multiple through‐space intersections were identified using phase‐sensitive nuclear Overhauser and exchange spectroscopy (NOESY). Proton relaxation rates and activation energies were determined over the temperature range −60 to 50°C. The chemical shift, NOESY and proton relaxation rate results support the formation of cyclic dimers and multiple spiperone conformations in solution.

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