9010
We report results of quantum chemical calculations for the neutral and anionic species of ( 4 , 4 ' ) - bipyridine ( 44BPY ) , a prototypical molecule with a floppy degree of freedom , placed in vacuo and in solvents .
 Chemical: ( 4 , 4 ' ) - bipyridine; Chemical: 44BPY
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: ( 4 , 4 ' ) - bipyridine; Chemical: 44BPY