Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

The lanthanum(III) molybdate(VI) La(4)Mo(7)O(27).

ABSTRACT: Crystals of the ortho-rhom-bic phase La(4)Mo(7)O(27) (lanthanum molybdenum oxide) were obtained from a non-stoichiometric melt in the pseudo-ternary system La(2)O(3)-MoO(3)-B(2)O(3). In the crystal structure, distorted square-anti-prismatic [LaO(8)] and monocapped square-anti-prismatic [LaO(9)] polyhedra are connected via common edges and faces into chains along [010]. These chains are arranged in layers that alternate with layers of [MoO(4)] and [MoO(5)] polyhedra parallel to (001). In the molybdate layers, a distorted [MoO(5)] trigonal bipyramid is axially connected to two [MoO(4)] tetra-hedra, forming a [Mo(3)O(11)] unit.

SUBMITTER: van der Wolf B

PROVIDER: S-EPMC2977117 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

The lanthanum(III) molybdate(VI) La(4)Mo(7)O(27).

van der Wolf Benjamin B Held Peter P Becker Petra P

Acta crystallographica. Section E, Structure reports online 20090711 Pt 8

Crystals of the ortho-rhom-bic phase La(4)Mo(7)O(27) (lanthanum molybdenum oxide) were obtained from a non-stoichiometric melt in the pseudo-ternary system La(2)O(3)-MoO(3)-B(2)O(3). In the crystal structure, distorted square-anti-prismatic [LaO(8)] and monocapped square-anti-prismatic [LaO(9)] polyhedra are connected via common edges and faces into chains along [010]. These chains are arranged in layers that alternate with layers of [MoO(4)] and [MoO(5)] polyhedra parallel to (001). In the moly ...[more]

PMID: 21583295

Similar Datasets

The defect scheelite-type lanthanum(III) ortho-oxidomolybdate(VI) La(0.667)[MoO(4)].

Project description:In scheelite-type La(0.667)[MoO(4)], one crystallographically unique position with site symmetry -4.. and an occupancy of 2/3 is found for the La(3+) cation. The cation is surrounded by eight O atoms in the shape of a trigonal dodeca-hedron. The structure also contains one [MoO(4)](2-) anion (site symmetry -4..), which is surrounded by eight vertex-attached La(3+) cations. The polyhedra around the La(3+) cations are inter-connected via common edges, building up a three-dimensional network, in the tetra-hedral voids of which the Mo(6+) cations reside.

| S-EPMC3569171 | biostudies-literature

Lithium europium(III) molybdate(VI), Li(3.5)Eu(1.5)(MoO(4))(4).

Project description:The title compound, Li(3.5)Eu(1.5)(MoO(4))(4), was prepared by solid-state reactions. The fundamental building units of the structure are LiO(4) polyhedra (site symmetry [Formula: see text]), distorted LiO(6) polyhedra and MoO(4) tetra-hedra, which are further inter-connected via corner-sharing O atoms. One site is occupied by both Li and Eu atoms in a substituent disordered manner (0.25:0.75), and the Li/Eu atoms are coordinated by eight O atoms in a distorted square-antiprismatic manner.

| S-EPMC3274837 | biostudies-literature

Dipraseodymium(III) pyroborate molybdate(VI), Pr(2)(B(2)O(5))(MoO(4)).

Project description:Single crystals of triclinic Pr(2)(B(2)O(5))(MoO(4)) were prepared from an incongruently melting flux in the system Pr(2)O(3)-MoO(3)-B(2)O(3) in a platinum crucible in an atmosphere of air. In the crystal structure, distorted edge-sharing [PrO(8)] square anti-prisms form a three-dimensional framework. These are further linked by isolated [MoO(4)] tetra-hedra and isolated pyroborate groups [B(2)O(5)], the latter consisting of two independent trigonal [BO(3)] groups sharing one O atom. The [MoO(4)] tetra-hedra and the [B(2)O(5)] groups are arranged in alternating layers parallel to the ab plane.

| S-EPMC2961550 | biostudies-literature

Dipotassium samarium(III) molybdate(VI) phosphate(V), K(2)Sm(MoO(4))(PO(4)).

Project description:The title compound, K(2)Sm(MoO(4))(PO(4)), has been prepared under atmospheric conditions using a high temperature solution growth (HTSG) method. The structure of K(2)Sm(MoO(4))(PO(4)) is isotypic with other A(2)M(MoO(4))(PO(4)) compounds, where A = Na or K, and M = trivalent rare earth cation. It can be described as being built up from two-dimensional anionic layers with composition [Sm(MoO(4))(PO(4))](2-) that are stacked along the c axis and are inter-connected by K(+) cations which are in an eightfold coordination by O atoms. The SmO(8), MoO(4) and PO(4) polyhedra exhibit 2 symmetry.

| S-EPMC2971031 | biostudies-literature

Lithium vanado(V)molybdate(VI), Li[VMoO6].

Project description:Brannerite-type Li[VMoO6] has been synthesized by a solid state reaction route. The V and Mo atoms statistically occupy the same site with mirror symmetry and are octa-hedrally surrounded by O atoms. The framework is two-dimensional and is built up from edge-sharing (V,Mo)O6 octa-hedra forming (VMoO6)? layers that run parallel to the (001) plane. Li(+) ions are situated in position with symmetry 2/m in the inter-layer space. The bond-valence analysis reveals that the Li(+) ionic conductivity is along the [010] and [110] directions, and shows that this material may have inter-esting conduction properties. This simulation proposes a model of the lithium conduction pathways.

| S-EPMC3884465 | biostudies-literature

Bis(isopropyl-ammonium) tetra-sulfido-molybdate(VI).

Project description:The title compound, (C(3)H(10)N)(2)[MoS(4)], was synthesized by passing a rapid stream of H(2)S into an aqueous isopropyl-amine solution of molybdic acid. The title compound is isotypic with the corresponding W analogue (C(3)H(10)N)(2)[WS(4)]; its structure consists of a slightly distorted tetra-hedral [MoS(4)](2-) dianion and two crystallographically independent isopropyl-ammonium cations, with all atoms located in general positions. The cations and anion are linked by weak N-H⋯S and C-H⋯S inter-actions, the strength and number of which can explain the observed Mo-S bond distances.

| S-EPMC2914947 | biostudies-literature

Tetra-kis(2-methyl-benzimidazolium) ?-octa-molybdate(VI).

Project description:The asymmetric unit of the title compound, (C(8)H(9)N(2))(4)[Mo(8)O(26)], consists of two 2-methyl-benzimidazolium cations and one-half of a ?-Mo(8)O(26) (4-) anion, which is completed by crystallographic inversion symmetry. An extensive net of N-H?O hydrogen bonds between the cations and anions contribute to the crystal packing.

| S-EPMC2979158 | biostudies-literature

Tetra-ammonium diaqua-diperoxidoocta-molybdate(VI) tetra-hydrate.

Project description:The title compound (NH(4))(4)[Mo(8)O(24)(O(2))(2)(H(2)O)(2)]·4H(2)O, consists of an octa-molybdate cluster with a crystallographic centre of symmetry. The clusters pack in a cubic close packing arrangement defining channels containing water mol-ecules and ammonium cations, which exhibit hydrogen bonding with neighbouring clusters. Hydrogen bonding also exists between the coordinated water mol-ecules of one cluster with one of the O atoms of the peroxido fragment in a neighbouring cluster.

| S-EPMC2969302 | biostudies-literature

Tripyridinium cis-tetra-chlorido-dioxido-molybdate(VI) chloride.

Project description:In the title compound, (C(5)H(6)N)(3)[MoCl(4)O(2)]Cl, the pyridinium cations are N-H?Cl hydrogen bonded to the anionic [MoCl(4)O(2)](2-) complexes and to the two crystallographically independent chloride anions (located on C2 axes). The Mo(6+) centre adopts a highly distorted octa-hedral geometry, being surrounded by four chloride and two terminal oxide groups. The oxide ligands are mutually cis.

| S-EPMC3006702 | biostudies-literature

Structure cristalline de la triple molybdate Ag0.90Al1.06Co2.94(MoO4)5.

Project description:Silver(I) aluminiun tricobalt(II) penta-kis-[tetra-oxidomolybdate(VI)], Ag0.90Al1.06Co2.94(MoO4)5, was synthesized using a solid-state reaction at 845 K. The structure can be described as a three-dimensional framework formed from dimeric M 2O10 (M = Co/Al) and trimeric M 3O14 units linked to MoO4 tetra-hedra by sharing corners, with the cavities occupied by disordered Ag(+) cations. It is shown that the Co and Al atoms occupy common positions with different occupancies. The Ag(+) cations are located at two different sites with occupancies of 0.486 (1) and 0.408 (1). The title coumpond is isotypic with NaMg3Al(MoO4)5 and NaFe4(MoO4)5. Differences and similarities with other related structures are discussed.

| S-EPMC4438844 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data