Barium manganese(II) selenostannate(IV), BaMnSnSe4
نویسندگان
چکیده
The title compound, BaMnSnSe(4), was obtained by reaction of the elements at 1123 K in an evacuated silica tube. It adopts the BaCdSnS(4) structure type, which is a variant of the SrIn(2)Se(4) structure type. Its structure consists of distorted edge-sharing tetra-hedra, alternating with Mn and Sn atoms as central atom. These [MnSnSe(6)] units display corner sharing, forming stacked infinite layers in the ac plane. The three different Ba(2+) atoms are located between the [MnSnSe(6)] layers, two on twofold rotation axes, and exhibit distorted square-antiprismatic coordinations.
منابع مشابه
Crystal structure of BaMnB2O5 containing structurally isolated manganese oxide sheets
In an attempt to search for mixed alkaline-earth and transition metal pyroborates, the title compound, barium manganese(II) pyroborate, has been synthesized by employing a flux method. The structure of BaMnB2O5 is composed of MnO5 square pyramids that form Mn2O8 dimers by edge-sharing and of pyroborate units ([B2O5]4-) that are composed of two corner-sharing trigonal-planar BO3 units. These bui...
متن کاملBioelectrochemical 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 کاملNeutron activation analysis of magnesium, calcium, strontium, barium, manganese, cobalt, copper, zinc, sodium, and potassium in human erythrocytes and plasma.
Except forstrontiumand barium,the elementsconsideredin thisstudyare of known biological importance.Strontiumand barium are of toxicologic inter est. The method presented was developed in conjunction with studies on the changes in concentrations of selected cations in human erythrocytes during storage (1). Samsahi,Brune,and Wester (2,3,4,5) have developedexcellention ex change procedures for sep...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011