Kristallstruktur von Mangan(II)sulfit-Trihydrat, α-MnSO3·3H2O / Crystal Structure of Manganese(II)sulfite Trihydrate, α-MnSO3·3H2O

Abstract

Abstract The structure of α-MnSO3·3H2O, space group P21/n, Z = 4, Dm = 2.42, Dx = 2.425gcm-3, a = 6.6501(3), b = 8.9065(4), c = 8.7925(4) Å, β=96.105(3)°, was solved by the Patterson method and refined by Fourier and least-squares methods. All H atoms were located. The final R’s are 2.1/3.2% for the 1749 observed/2280 measured reflexions. Coordination of Mn is octahedral involving O atoms from three water molecules and three different sulfite groups. MnO6 octahedra are linked through sulfite sulfur. The Mn-O distances range from 2.149(2) to 2.314(2) Å. The S-O distances of the sulfite group are 1.529(2), 1.529(2) and 1.544(2) Å. The first two are elongated by one, the latter by two H bonds. The O-S-O angles are 103.25(9), 104.18(9) and 104.35(9)°.