Fig. 2: Catalyst composition comparison for 1-phenyl-1-propyne semihydrogenation.
From: Earth-abundant Ni-Zn nanocrystals for efficient alkyne semihydrogenation catalysis

Catalytic reaction scheme and reactant and product distribution for 1-phenyl-1-propyne semihydrogenation. The substrate 1-phenyl-1-propyne is shown in gray, Z-2H (cis-β-methyl styrene) in green, E-2H (trans-β-methyl styrene) in light blue, 4H (n-propyl benzene) in dark blue, and other products (based on carbon balances) in black.