Urey-Bradley force constants have been fitted by least squares to the vibrational frequencies of CH3F, CH3Cl, CH3Br, CH3I, and their fully deuterated isotopes. Both observed and zeroth-order frequency data have been used and the corresponding sets of force constants have been compared.
No takes yet. Share an insight, caveat, or question.
Overend et al. (1960) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: