SG #4: \(C_{\rm 2}^{2}\) (\(P2_1\))# Related group PG : \(C_{\rm 2}\) (\(2\)) MPG : \(21'\) MSG (SG) : \(C_{\rm 2}^{2}\) (\(P2_1\)) Symmetry operation : PDF Wyckoff site : PDF bond : PDF