11384
We report a global potential energy surface ( PES ) for CH ( 3 ) NO ( 2 ) based on fitting roughly 114 000 density functional theory ( UB3LYP / 6 - 311 + g ( d , p ) ) electronic energies .
 Chemical: CH ( 3 ) NO ( 2 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
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Answer:
 Chemical: CH ( 3 ) NO ( 2 )