#echo "$energy $total $free_si_250" | \
# awk '{ print " cohesive energy (Si only 250): " ($1-$2*$3)/$2 " eV" }'
#echo "$energy $sicnt $free_c_650" | \
#echo "$energy $total $free_si_250" | \
# awk '{ print " cohesive energy (Si only 250): " ($1-$2*$3)/$2 " eV" }'
#echo "$energy $sicnt $free_c_650" | \