Low-Vacuum Deposition of Glutamic Acid and Pyroglutamic Acid: A Facile Methodology for Depositing Organic Materials beyond Amino Acids

<table>NMR spectra of evaporated films in comparison with their originals: (a)   <sup>1</sup>H-NMR spectra in highly shielded region, (b)<sup> 1</sup>H-NMR spectra in moderately shielded region, (c)<sup> 13</sup>C-NMR spectra in highly shielded region, and (d)  <sup>13</sup>C-NMR spectra in slightly shielded region.</table>

Journal of Amino Acids

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Figure 5

Figure 5: Low-Vacuum Deposition of Glutamic Acid and Pyroglutamic Acid: A Facile Methodology for Depositing Organic Materials beyond Amino Acids 