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. 2018 Jul 10;6:275. doi: 10.3389/fchem.2018.00275

Figure 6.

Figure 6

(A) Mechanism of hydrogenation of ethene catalyzed by Rh3H7/Y. (B) Snapshots of the reactant(1.2), the intermediate(1.3) and the product(1.4). Atom colors: Rh–ochre, Si–yellow, Al–green, O–red, C–black, and H–white. (C) Free energy profiles computed from the QM/MM and the QM/p–MM metadynamics simulations are given.