1536
Coordination and bond activation in complexes of regioisomeric phenylpyridines with the nickel ( II ) chloride cation in the gas phase .
 Chemical: phenylpyridines; Chemical: nickel ( II ) chloride
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: phenylpyridines; Chemical: nickel ( II ) chloride