1972
The performance of a range density functional theory functionals combined in a quantum mechanical ( QM ) / molecular mechanical ( MM ) approach was investigated in their ability to reliably provide geometries , electronic distributions , and relative energies of a multicentered open - shell mechanistic intermediate in the mechanism 8R - Lipoxygenase .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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