23396
Diffusion coefficient measurements by DOSY NMR and DFT based computation have indicated the association of the two aryl diazonium species in the solution , which has led to changes in the molecular orbital energies of the two species .
 Chemical: aryl diazonium
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: aryl diazonium 
Answer:
 Chemical: aryl diazonium