29836
A six - centered , concerted transition state for C - N and C - H bond formation and N - H bond cleavage involving two amidoalkene ligands is proposed as most consistent with the current data .
 Chemical: C - N; Chemical: C - H; Chemical: N - H; Chemical: amidoalkene
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: C - N; Chemical: C - H; Chemical: N - H; Chemical: amidoalkene