Crystal structures of manganese hydrogen sulfates - Mn(HSO4)(2), Mn(HSO4)(2)center dot H2O and Mn(HSO4)(2)(H2SO4)(2)

In the binary system MnSO4/H2SO4, two new acid sulfates were synthesized an d their structures have been determined: Mn(HSO4)(2), Mg(HSO4)(2) type, P2( 1)/n, Z = 2, a = 5.014(1) Angstrom, b = 8.426(2) Angstrom, c = 7.452(1) Ang strom, beta = 100.05(1)degrees, R-1 = 0.035, and Mn(HSO4)(2)(H2SO4)(2), Cd( HSO4)(2)(H2SO4)(2) type, P2(1)/c, Z = 4, a = 5.166(1) Angstrom, b = 15.397( 3) Angstrom, c = 7.963(1) Angstrom, beta = 104.74(2)degrees, R-1 = 0.039. M n(HSO4)(2). H2O was isolated from 85% sulfuric acid, Mg(HSO4)(2). H2O type, P2(1)/n, Z = 4, a = 8.720(2) Angstrom, b = 5.084(1) Angstrom, c = 15.663(3 ) Angstrom, beta = 101.11(3)degrees, R-1 = 0.026. In all compounds, the man ganese atoms are octahedrally coordinated by oxygen atoms originated from e ither HSO4- or H2SO4 tetrahedra. Hydrogen bonding systems consist of layers or chains. In the structure of Mn(HSO4)(2), the HSO4- tetrahedra form infi nite zigzag chains along [010]. The structure of Mn(HSO4)(2). H2O is charac terized by layers of HSO4- tetrahedra and H2O molecules connected by hydrog en bonds. Layers consisting of HSO4- and H2SO4 tetrahedra are formed in the structure of Mn(HSO4)(2)(H2SO4)(2).