Poly[[diaqua­tris­(μ2-3-methyl­pyridine-2-carboxyl­ato)(3-methyl­pyridine-2-car­boxyl­ato)sodiumterbium(III)] ethanol monosolvate monohydrate]

In the title compound, {[NaTb(C7H6NO2)4(H2O)2]·C2H5OH·H2O}n, the TbIII atom is eight-coordinated in a slightly distorted square-anti­prismatic geometry defined by four carboxyl­ate O atoms and four pyridine N atoms. The bond lengths lie within the range 2.3000 (2)–2.326 (2) Å for the Tb—O bonds and 2.543 (3)–2.553 (3) Å for the Tb—N bonds. The NaI atom is five-coordinated by two water O atoms and three carboxyl­ate O atoms in a distorted square-pyramidal geometry. In the crystal, inter­molecular O—H⋯O hydrogen bonds link the mol­ecules into a three-dimensional network

[4-(2-tert-But­oxy-2-oxoeth­oxy)naph­thalen-1-yl]diphenyl­sulfonium trifluoro­methane­sulfonate

In the cation of the title salt, C28H27O3S+·CF3O3S−, the dihedral angle between the naphthalene ring system and the –C(=O)—O– plane is 80.39 (9)°. The three methyl groups of the tert-butyl group are each disordered over two orientations with an occupancy ratio of 0.712 (18):0.288 (18)

The Chevrel phase In4.07Mo15S11.87Se7.13 with mixed chalcogenide occupancy

The single-crystal of the title compound, indium pentadecamolybdenum nonadeca(sulfide/selenide), was obtained by solid state reaction with an S/Se mixture. It adopts the structure type of In3Mo15Se19 and In3.7Mo15S19, which are non-substituted Chevrel phases in the space group P63/m. The Mo, one S/Se and two In sites have point symmetry m.. and two S/Se and one In atoms are in 3.. sites. This compound contains isolated Mo6 and Mo9 clusters. The shapes of clusters are octa­hedral and confacial biocta­hedral, respectively, face-capped by chalcogen atoms over each triangle face. The Mo—X bonds (X = S, Se) play an important role for the constitution of the framework. The Mo—X distances of 2.479 (2)–2.6687 (9) Å are within the ranges of average values of Mo—S and Mo—Se distances. The In atoms located on sites with m.. symmetry are partially occupied

The Intermetallic Compound BaAgBi

BaAgBi was obtained as a by-product when Ba [rod, Alfa–Aesar (99.99%)], Ag [powder, −100 mesh, Alfa–Aesar (99.999%)], and Bi [powder, −100 mesh, Alfa–Aesar (99.999%)] were loaded into a tantalum tube (Nobel-Met. Ltd, \u3e99.85%, 0.375 in. OD) in a 1:1:2 molar ratio in an Ar-filled glovebox. The tube was sealed in an arc-melter under argon, placed in a fused-silica jacket, and heated at 973 K for 3 days. The reaction container was cooled slowly to 673 K at 10 K h−1, and then quenched to room temperature. When the tantalum tube was opened in the Ar-filled glovebox, grey irregular-shaped crystals of BaAgBi were found in the product. Single crystals were mounted in 0.3 mm thin-walled capillaries for diffraction experiments

The Bonding of Pa to d8-ML3 Complexes

Extended Hiickel calculmions were carried out on 171, \u27f/ 2, and \u27f/3 complexes of P4 to Rh(PH3)2Cl. The \u27f/ 1-square planar and an \u27f/2 complex with C2v symmetry are the most stable. Geometrical optimizations and a detailed account of the bonding in each have been carried out. d10 \u27f/1-tetrahedral complexes of P4 are expected to be quite stable. The best candidate for an \u27f/3 mode of bonding is the trimer Fe3(C0)9. Alternative complexes at \u27f/3 include a d6-ML3 and d4-ML4 species, however reactivity problems in the former and steric constraints in the latter may prohibit their isolation

5,5′-[1,4-Phenyl­enebis(methyl­enesulfanedi­yl)]bis­[1,3,4-thia­diazol-2(3H)-one] dimethyl sulfoxide disolvate

The asymmetric unit of the title compound, C12H10N4O2S4·2C2H6OS, contains one half of the p-xylene mol­ecule and one dimethyl sulfoxide mol­ecule. The p-xylene mol­ecule is located about a crystallographic inversion centre. In the mol­ecule, the thia­diazole and benzene rings are almost perpendicular to one another, with a dihedral angle of 88.95 (6)°. In the crystal, an N—H⋯O hydrogen bond is observed between the two components. The dimethyl sulfoxide mol­ecule is disordered over two orientations with an occupancy ratio of 0.879 (1):0.121 (1)