REFINEMENT OF THE STRUCTURE OF CYCLOHEXYLAMMONIUM CHLORIDE (CYCLOHEXYLAMINE.HCL)

The crystal structure of cyclohexylammonium chloride has been refined to a conventional R value of 0.029 using X-ray data obtained with moly bdenum radiation. The title compound crystallizes in the orthorhombic space group Pca2(1) with a = 9.339(2), b = 11.449(2), c = 7.546(1) ang strom, and D(c) = 1.117 g cm-3 for Z = 4. An earlier structure determi nation has been essentially verified with the exception of some import ant features: a significantly longer and more reasonable C(1) - N bond distance, increased values for all the endocyclic torsion angles and an increase in the length of the a axis.