Crystal and molecular structures of 2-aminobenzophenone and 2-aminodiphenylmethanol

Abstract

Crystals of 2-aminobenzophenone are monoclinic, space group P2₁/c, a= 10.247(3), b= 10.985(3), c= 9.113(1)Å, β= 99.03(1)°, Z= 4. The structure was solved by direct methods and refined to R= 0.042 with 959 Mo-K_α diffractometer data. The molecular packing is due to intramolecular and intermolecular N–H⋯O Hydrogen bonds, which determine a linear chain structure. Crystals of 2-aminodiphenylmethanol are rhombohedral, space group R, a= 13.418(3)Å, α= 113.23(1)°, Z= 6. The structure was solved by direct methods and refined with 916 observed reflections to R= 0.064. The molecules are linked into polymeric units by strong hydrogen bonds between the OH functions.