17978
In NG / 2 , NG / 3 , and NG / 4 hybrids , strong electronic coupling between the individual components gives rise to charge transfer from the photoexcited zinc phthalocyanines to NG to form hundreds of picoseconds lived charge transfer states .
 Chemical: zinc phthalocyanines
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: zinc phthalocyanines