27036
Acetylacetonate ( acac ) complexes [ Cu ( Fc - aa ) ( acac ) ] ( 4 - 6 ) were prepared and used as controls .
 Chemical: Acetylacetonate; Chemical: acac; Chemical: [ Cu ( Fc - aa ) ( acac ) ]
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: Acetylacetonate; Chemical: acac; Chemical: [ Cu ( Fc - aa ) ( acac ) ]