Discovery: add C2Sc3 (1C2Sc3-1)

active_challenge.csv

@@ -973,3 +973,4 @@ OSC-01877,2BrRu-1,2BrRu-1,Br2Ru2,discovery,light,,ok,0.18013,1.44104,8.0,2.0001,
 OSC-01884,2BrZr-2,2BrZr-2,Br2Zr2,discovery,light,,ok,0.21886,1.75088,8.0,-0.3183,1.7497,,0.7222,0.62104,gaussian_dos_scf_mesh,0.00718,,
 OSC-01913,1C2Mo3-1,1C2Mo3-1,C2Mo3,discovery,light,,ok,0.20633,1.65064,8.0,4.7528,0.3664,,0.6667,0.57912,gaussian_dos_scf_mesh,0.00483,,
 OSC-01914,1C2Nb3-1,1C2Nb3-1,C2Nb3,discovery,light,,ok,0.17945,1.4356,8.0,4.0952,0.7877,,0.2222,0.70991,gaussian_dos_scf_mesh,0.04812,,
+OSC-01915,1C2Sc3-1,1C2Sc3-1,C2Sc3,discovery,light,,ok,0.16479,1.31832,8.0,2.1794,0.7435,,0.2778,0.57567,gaussian_dos_scf_mesh,0.05849,,