Growth of bulk single crystal of N-acetyl DL-methionine and its spectral characterization

• A bulk size single crystal of N-acetyl DL-methionine was grown for the first time.
• Assignments were made for the peaks in the IR spectra.
• UV–vis–NIR spectra showed the excellent transparency in this region.
• The TGA/DTA studies revealed its stability up to 117 °C.

Bulk size single crystal of N-acetyl DL-methionine (C7H13NO3S) (1) was grown using a home-made crystal growth setup (MKN setup). The identity of the grown crystal was confirmed by single crystal X-ray diffraction. The modes of vibrations of the functional groups present were assigned using the infrared (IR) spectrum. UV–vis–NIR spectra showed that the crystals have excellent transparency in the visible and infrared regions. The thermal stability and decomposition of the sample was studied by using thermal analysis (TGA/DTA). Photoluminescence excitation studies showed that the emission occurred at 350 nm for the compound.

Molecular structure of N-acetyl DL-methionine (for better clarity H-atoms are not labeled).Figure optionsDownload as PowerPoint slide