5334
Density functional theory calculations were performed to examine the effect of a C vacancy on the physisorption of H ( 2 ) onto Ti - functionalized C ( 60 ) fullerene when H ( 2 ) is oriented along the x - , y - , and z - axes of the fullerene .
 Chemical: C; Chemical: H ( 2 ); Chemical: Ti; Chemical: C ( 60 ) fullerene; Chemical: H ( 2 ); Chemical: fullerene
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: H ( 2 ); Chemical: Ti; Chemical: C ( 60 ) fullerene; Chemical: H ( 2 ); Chemical: fullerene