23352
We synthesized complexes of Ni ( II ) with dithiocarbamate ligands derived from the ortho and para isomers of sulforhodamine B fluorophores and demonstrated they are highly selective in reactions with nitrogen dioxide ( NO2 ) .
 Chemical: Ni ( II ); Chemical: dithiocarbamate; Chemical: sulforhodamine B; Chemical: nitrogen dioxide; Chemical: NO2
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: Ni ( II ); Chemical: dithiocarbamate; Chemical: sulforhodamine B; Chemical: nitrogen dioxide; Chemical: NO2