SG #157: \(C_{\rm 3v}^{2}\) (\(P31m\))# Related group PG : \(C_{\rm 3v}(1)\) (\(3m\)) MPG : \(3m1'\) MSG (SG) : \(C_{\rm 3v}^{2}\) (\(P31m\)) Symmetry operation : PDF Wyckoff site : PDF bond : PDF