AbstractCarbon‐halogen stretching frequencies of 1‐chloro‐l‐chloromethyl — (1), 1‐bromomethyl‐1‐chloro‐ (2), 1‐bromo‐1‐bromomethyl‐ (3), 1‐chloromethyl‐1‐hydroxy‐ (4), 1‐bromomethyl‐1‐hydroxy‐ (5) and 1‐bromomethyl‐1‐methoxycyclohexane (6) are reported. The frequencies were assigned to specific conformations by comparing the observed values with those predicted from the known “stretching parameters” of the several possible chemical/geometrical arrangements in the vicinity of the C‐Hal bond (P. T, S calssification).The dipole moments of1, 3and5in carbon tetrachloride and benzene were measured to obtain quantitive information on the conformational properties of this class of compounds.The dihalides exist as mixtures ofantiandgaucheconformations (tertiary halogen axial) with theantiform predominating on account of its low