Disodium tetraaquabis(sulfato)iron(II)

Abstract

In the title compound, [FeNa2(SO4)2(H2O)4], the Fe2+ cation is situated on a centre of inversion and is hexa­coordinated by four O atoms from water mol­ecules and two O atoms from two sulfate anions in an octa­hedral geometry. The coordination environment of Na+ comprises six O atoms in a more distorted octa­hedral arrangement, with Na—O distances between 2.368 (1) and 2.612 (1) Å. The structure contains an extensive three-dimensional network of O—H⋯O hydrogen bonds.

Manipulation of the Hydration Levels in Minerals of Sodium Cadmium Bisulfate toward the Design of Functional Materials

“…Na 2 Cd(SO 4 ) 2 ·4H 2 O is isostructural with the mineral astrakhanite, which is also known as blödite. , It has a chemical formula Na 2 Mg(SO 4 ) 2 ·4H 2 O. There are very few reports of isostructural blödite where Mg atom is being replaced by Co and Zn, Ni, and Fe. − …”

Structural and thermal properties of Na2Mn(SO4)2·4H2O and Na2Ni(SO4)2·10H2O

“…This is in good agreement with PXRD data which indicate that the prepared manganese phase contains mainly the Na 12 Mn 7 (SO 4 ) 13 $15H 2 O phase. [31][32][33][34][35][36][37] Conventionally, the blödite-type of structure is described as a stacking of layers parallel to the (010) plane and formed of MnO 2 (H 2 O) 4 and NaO 4 (H 2 O) 2 octahedra ( Fig. 5a and b).…”

Bimetallic Sulfates A2M(SO4)2.nH2O (A = Li, Na and M = Transition Metal): as New Attractive Electrode Materials for Li- and Na-Ion Batteries

“…From these three routes, we got pure phases of the targeted compounds, whose XRD patterns are displayed in Figure 1. The structures of these minerals and synthetic compounds have been widely studied before by several groups (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21). The Bloedite structure is built upon isolated units of M(SO 4 ) 2 (H 2 O) 4 .…”