Heterostructure 0%: E-EF=+0.0008 eV; Sc2C=2.564971; ZrCl2=2.222928; total=4.78 states/(eV cell) Isolated Sc2C 0%: E-EF=+0.0008 eV; Sc2C=4.232280; ZrCl2=0.000000; total=4.23 states/(eV cell) Heterostructure +1.5%: E-EF=-0.0023 eV; Sc2C=2.080865; ZrCl2=2.459610; total=4.54 states/(eV cell) Isolated Sc2C +1.5%: E-EF=+0.0022 eV; Sc2C=4.477110; ZrCl2=0.000000; total=4.48 states/(eV cell) Four frozen-control PDOS states checked; no DFT invoked.