2470
Current knowledge of the coordination chemistry of d , f and p - block fluorides and oxide fluorides with neutral ligands ( with donor atoms drawn from Groups 15 and 16 and including N - heterocyclic carbenes ) is then presented and discussed , and the differences in properties compared to complexes containing the heavier halides are illustrated .
 Chemical: fluorides; Chemical: oxide; Chemical: fluorides; Chemical: N - heterocyclic carbenes; Chemical: halides
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: fluorides; Chemical: oxide; Chemical: fluorides; Chemical: N - heterocyclic carbenes; Chemical: halides