14660
Synchrotron XPS was used to investigate a series of chemically - synthesised , atomically - precise gold clusters Au ( n ) ( PPh ( 3 ) ) ( y ) ( n = 8 , 9 , 11 and 101 , with y depending on cluster size ) immobilized on titania nanoparticles .
 Chemical: Au ( n ) ( PPh ( 3 ) ) ( y ); Chemical: titania
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: Au ( n ) ( PPh ( 3 ) ) ( y ); Chemical: titania