Fourier Transform Infrared (FT-IR) Studies:
For the pure drug, co-former and co-crystals
Fourier Transform Infrared (FT-IR) spectra were obtained. The spectra were recorded in a Thermo- IR 200 FTIR spectrophotometer. Potassium bromide pellet method was employed and background spectrum was collected under identical conditions. Each spectrum was derived from 16 single average scans collected in the range of 400-4000 cm-1 at the spectral resolution of 2 cm-1.