Crystal and molecular structure of 2,6-bis(bromomethyl)-1,4-diphenylpiperazine

Abstract

The crystal structure and molecular configuration of the title compound (IV) have been determined by a single crystal X-ray diffraction study. The crystals are monoclinic, space group P2₁/n, with Z= 4, a= 10·717, b= 17·955, c= 9·124, and β= 91·28°. The structure was solved by both Fourier and direct methods and refined by least-square techniques to R 0·074 for 1562 observed reflections. Most bond distances and angles are as expected. However, the chair form of the central piperazine ring is distorted with one interior C–N–C angle of 120°.