Crystal and molecular structure of isopropamide iodide [4-di-isopropyl-amino-2,2-diphenylbutyramide methiodide]

Abstract

The structure of the title compound (I) has been determined by single-crystal X-ray diffraction. Crystals are orthorhombic in a unit cell of dimensions a= 17.624(6), b= 14.589(5), c= 9.012(4)Å, space group P2₁2₁2₁, Z= 4. The structure was solved by Patterson and Fourier methods and refined by least squares to R 0.055 for 1 241 observed diffractometer data. All hydrogen atoms were located. The angle between the two phenyl groups is 82°. The amide group is planar and makes angles of 84 and 89° with the two phenyl groups.