20762
We have quantified the surface charges and exploited their accessibility by employing these surfaces in an anion exchange experiment by which [ Au25L18 ] ( - ) ( L = SCH2CH2Ph ) nanocrystals can be assembled into the solid state .
 Chemical: [ Au25L18 ] ( - ); Chemical: SCH2CH2Ph
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: [ Au25L18 ] ( - ), SCH2CH2Ph 
Answer:
 Chemical: [ Au25L18 ] ( - ); Chemical: SCH2CH2Ph