The title complex mol-ecule, [Fe(2)Co(C(5)H(5))(2)(C(6)H(4)O(2))(2)(C(6)H(7)NO)(2)], has a crystallographic imposed centre of symmetry. The Co(II) atom displays a distorted octa-hedral coordination geometry, provided by the O atoms of two monodentate ferrocene-carboxyl-ate anions and by the N and O atoms of two 2-pyridyl-methanol mol-ecule. The mol-ecular conformation is stabilized by intra-mol...

The title compound, octaaqua-(hydrogenfluorido)dicopper(II) hexa-fluoridoferrate(III) dihydrate, was synthesized under hydro-thermal conditions. The Cu atom is coordinated by one F and five O atoms within a highly distorted octa-hedron, forming dimeric [Cu(2)(H(2)O)(8)HF(2)](3+) units by edge sharing. These units are hydrogen bonded to [FeF(6)](3-) anions and to an inter-stitial water mol-ecule...

A natural sample of perovskite (calcium caesium sodium iron titanium oxide) from the Tapira Alkaline Complex in southeastern Brazil was found by electron microprobe analysis to have the chemical formula (Ca(2+) (0.95 (1))Ce(3+) (0.011 (2))Na(+) (0.010 (4)))(Fe(3+) (0.022 (2))Ti(4+) (0.98 (1)))O(2-) (3) and by IR spectroscopy to be an anhydrous mineral. Oxygen anions are arranged around Ti(4+) i...

The title compound, [Mg(NCS)(2)(C(12)H(8)N(2))(2)], has been synthesized from the hydro-thermal reaction of MgCl(2), KSCN, 1,10-phenanthroline and H(2)O. Its structure is isotypic with the Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) analogues. The Mg(II) cation has a slightly distorted octa-hedral geometry containing four N atoms from two 1,10-phenanthroline mol-ecules and two N atoms fro...

The crystal structure of the title compound, (C(23)H(33)N(2))[FeCl(4)], consists of 1,3-bis-(1-adamant-yl)imidazolium (BAIM) cations and tetra-hedral tetra-chloridoferrate(III) (TCF) anions. The BAIM cation possesses m symmetry, with the central imidazole ring and four C atoms of each terminal adamantyl group located on a mirror plane. The Fe and two Cl atoms of the TCF anion are also located o...

In the title compound, [FeNa(2)(SO(4))(2)(H(2)O)(4)], the Fe(2+) cation is situated on a centre of inversion and is hexa-coordinated by four O atoms from water mol-ecules and two O atoms from two sulfate anions in an octa-hedral geometry. The coordination environment of Na(+) comprises six O atoms in a more distorted octa-hedral arrangement, with Na-O distances between 2.368 (1) and 2.612 (1) Å...

The title compound, (C(5)H(12)N)[Fe(C(5)H(5))(C(8)H(7)NO(3))], resulting from neutralization of N-(ferrocenylcarbon-yl)glycine with piperidine, is built up from discrete ions that assemble into sheets via the combination of conventional and weak hydrogen bonds. The key repeating unit is constituted by two piperidium cations and two carboxylate anions that assemble into a centrosymmetric array v...

Waste building sludge (WBS) originating in the production of concrete prestressed poles (CSW) and technical stone (TSW) used original Fe-modified forms (CSWFe, TSWFe) was tested as an environmentally friendly cheap sorbent selected cations (Cd2+, Pb2+, Cs+) anions (AsO43?, PO43?, CrO42?) from water. The experiments were performed with 0.1 0.5 mmol·L?1 model solutions a batch manner at laborator...

The lunar rocks described in the next chapter are unique to the Moon. Their special characteristics— especially the complete lack of water, the common presence of metallic iron, and the ratios of certain trace chemical elements—make it easy to distinguish them from terrestrial rocks. However, the minerals that make up lunar rocks are (with a few notable exceptions) minerals that are also found ...

Ca14FeAs11 is the first iron-containing representative of Ca14AlSb11 structure type and compound with isolated FeAs4 tetrahedra. It can be regarded as a salt-like containing [FeAs4]9− tetrahedra, linear [As3]7− units, As3− anions Ca2+ cations thus borderline between binary Fe−As intermetallics calcium arsenides. obtained by two-step high-temperature reaction, in which preformed FeAs alloy heate...