19132
The effects of solvation and identity of the varying C - terminal residue on the energetics , structural features of the peptide planes , values of the psi and phi dihedrals , geometry around the alpha - carbon atoms and theoretically predicted vibrational spectra of the dipeptides are investigated .
 Chemical: C; Chemical: alpha - carbon; Chemical: dipeptides
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: C; Chemical: alpha - carbon; Chemical: dipeptides