29919
The analysis reveals that the energy separation and the overlap between the electron donating orbitals and electron accepting orbitals of the Fe ( IV ) oxo complexes dictate the reaction stereochemistry , and that the manner in which the exchange interaction changes depends on the identity of these orbitals .
 Chemical: Fe ( IV ) oxo
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: Fe ( IV ) oxo