{ "property-id" "tag:staff@noreply.openkim.org,2014-04-15:property/cohesive-potential-energy-hexagonal-crystal" "instance-id" 1 "space-group" { "source-value" "P6/mmm" } "basis-atom-coordinates" { "source-value" [ [ 0 0 0 ] [ 0.666667 0.333333 0.5 ] [ 0.333333 0.666667 0.5 ] ] } "species" { "source-value" [ "Ca" "Si" "Si" ] } "a" { "source-value" 4.08665849171 "source-unit" "angstrom" } "c" { "source-value" 4.24413358 "source-unit" "angstrom" } "cohesive-potential-energy" { "source-value" 4.585290276666666 "source-unit" "eV" } }