X-Ray Powder Diffraction Data For Letrozole (C17h11n5)

X-ray powder diffraction data, unit-cell parameters, and space group for letrozole, C17H11N5, are reported [a = 7.034( 0) angstrom, b = 16.177( 5) angstrom, c = 13.411( 3) angstrom, a = gamma = 90 degrees, beta = 105.71( 9)degrees, unit-cell volume V = 1469.0( 3) angstrom(3), Z = 4, and space-group P2(1)/c]. All measured lines were indexed and are consistent with the P2(1)/c space group. No detectable impurity was observed. (C) 2015 International Centre for Diffraction Data.