Discovery: add P2Pd2S6 (2PPdS3-1)

active_challenge.csv

@@ -594,3 +594,4 @@ OSC-00770,2OsPS3-1,2OsPS3-1,Os2P2S6,discovery,light,,ok,0.05749,0.45992,8.0,-0.6
 OSC-00774,2OsTe-1,2OsTe-1,Os2Te2,discovery,light,,ok,0.23357,1.86856,8.0,1.3421,1.7465,,0.7222,0.67318,gaussian_dos_scf_mesh,0.00718,,
 OSC-00775,2OsTe-2,2OsTe-2,Os2Te2,discovery,light,,ok,0.22504,1.80032,8.0,2.5342,0.0783,,0.9444,0.28407,gaussian_dos_scf_mesh,0.00283,,
 OSC-00776,2OsTe3-1,2OsTe3-1,Os2Te6,discovery,light,,ok,0.10125,0.81,8.0,1.4455,1.4742,,0.4444,0.75177,gaussian_dos_scf_mesh,0.0,,
+OSC-00777,2PPdS3-1,2PPdS3-1,P2Pd2S6,discovery,light,,ok,0.06579,0.52632,8.0,-0.7283,1.7597,,0.7222,0.444,gaussian_dos_scf_mesh,0.00718,,