8597
When no strong solvent - solute hydrogen - bonding interactions in the case of chloroform are expected , the gas phase monomer model is adequate for spectral interpretation , while inclusion of implicit solvation improves the frequency agreement with experiment .
 Chemical: hydrogen; Chemical: chloroform
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: hydrogen; Chemical: chloroform