19554
The photochemistry of [ CpRu ( CO ) 2 ] 2 in P ( OMe ) 3 / CH2Cl2 solution has been studied using picosecond time - resolved infrared ( TRIR ) spectroscopy .
 Chemical: [ CpRu ( CO ) 2 ] 2; Chemical: P ( OMe ) 3; Chemical: CH2Cl2
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: [ CpRu ( CO ) 2 ] 2; Chemical: P ( OMe ) 3; Chemical: CH2Cl2