Manganese(II) octauranium(IV) heptadecasulfide
نویسندگان
چکیده
Single crystals of manganese(II) octa-uranium(IV) hepta-deca-sulfide, MnU(8)S(17), were grown from the reaction of the elements in a RbCl flux. MnU(8)S(17) crystallizes in the space group C2/m in the CrU(8)S(17) structure type. The asymmetric unit is composed of the following atoms with site symmetries shown: U1 (1), U2 (m), U3 (m), Mn1 (2/m), S1 (1), S2 (1); S3 (m), S4 (m), S5 (m), S6 (m) and S7 (2/m). The three U(IV) atoms are each coordinated by eight S atoms in a bicapped trigonal-prismatic arrangement. The Mn(II) atom is coordinated by six S atoms in a distorted octa-hedral arrangement.
منابع مشابه
Bioelectrochemical Mn(II) leaching from manganese ore by Lactococcus lactis SK071115.
L. lactis sk071115 has been shown to grow more actively and generate lower levels of lactate in glucose-defined medium with nitrate than in medium with Mn(IV). By adding Mn(IV) to a L. lactis culture, lactate production was relatively reduced in combination with Mn(II) production, but cell mass production levels did not increase. Both cell-free extract and intact L. lactis cells reacted electro...
متن کاملRedox Interaction between Binuclear Mn2(III/IV) Complexes and Binuclear Mn2(II/II) Complexes
A dominant feature of the inorganic chemistry of manganese is the variety of complexes that can be made with different oxidation levels ( + 11+ IV) of the manganese, and living systems have utilized this property in that manganese-containing en zymes are involved in many diverse redox func tions [1]. The biological function that has generat ed most interest is the photosynthetic oxygen evolv...
متن کاملA manganese oxide with phenol groups as a promising structural model for water oxidizing complex in Photosystem II: a 'golden fish'.
We describe here the ability of manganese oxide monosheets to aggregate to form layered structures with 4-aminophenol molecules. These aggregated monosheets could be considered as the first step to synthesize a self-assembled layered hybrid of phenol-manganese ions with phenol and manganese(III) and (IV) as exists in the water oxidizing complex of Photosystem II.
متن کاملKinetics of the Iron(II)- and Manganese(II)-Catalyzed Oxidation of S(IV) in Seawater with Acetic Buffer: A Study of Seawater Desulfurization Process
Kinetics of iron(II)and manganese(II)-catalyzed oxidation of S(IV) in seawater were studied here to provide theoretical support for the flue gas desulfurization process (SFGD). Experiments were carried out with artificial seawater and acetic buffer. Results indicated that the reaction order with respect to dissolved oxygen is zero. However, the reaction order with respect to S(IV) is variable: ...
متن کاملA single tripodal ligand stabilizing three different oxidation states (II, III, and IV) of manganese.
A series of mononuclear Mn(II), Mn(III), and Mn(IV) complexes was prepared using a single tripodal ligand (H(3)L). Addition of a cation (NH(4)(+), K(+), Na(+)) to [Mn(III)L] showed a pronounced effect on the redox potentials. Different variants of Jahn-Teller distortion, axial elongation and compression, were observed in the Mn(III) complexes.
متن کامل