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Bis(methyl-ammonium) tetra-sulfido-tungstate(VI).

ABSTRACT: The title compound, (CH(6)N)(2)[WS(4)], was synthesized by the reaction of ammonium tetra-sulfidotungstate(VI) with aqueous methyl-amine. The title compound is isotypic with the corresponding Mo analogue (CH(6)N)(2)[MoS(4)], and its structure consists of a slightly distorted tetra-hedral [WS(4)](2-) dianion and two crystallographically independent methyl-ammonium (MeNH(3)) cations, all of which are located on crystallographic mirror planes. The tetra-sulfidotungstate anions are linked to the organic cations via hydrogen-bonding inter-actions.

SUBMITTER: Srinivasan BR

PROVIDER: S-EPMC2960287 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

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Bis(methyl-ammonium) tetra-sulfido-tungstate(VI).

Srinivasan Bikshandarkoil R BR Näther Christian C Bensch Wolfgang W

Acta crystallographica. Section E, Structure reports online 20080104 Pt 2

The title compound, (CH(6)N)(2)[WS(4)], was synthesized by the reaction of ammonium tetra-sulfidotungstate(VI) with aqueous methyl-amine. The title compound is isotypic with the corresponding Mo analogue (CH(6)N)(2)[MoS(4)], and its structure consists of a slightly distorted tetra-hedral [WS(4)](2-) dianion and two crystallographically independent methyl-ammonium (MeNH(3)) cations, all of which are located on crystallographic mirror planes. The tetra-sulfidotungstate anions are linked to the org ...[more]

PMID: 21201273

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Bis(tetra-phenyl-phospho-nium) tetra-sulfido-tungstate(VI).

Project description:The crystal structure of the title compound, (C(24)H(20)P)(2)[WS(4)], which was prepared under hydro-thermal conditions, contains tetra-phenyl-phospho-nium cations linked by supra-molecular inter-actions into chains running along the [110] and [10] directions. The [WS(4)](2-)anions, which lie on twofold axes, are located in the cavities created between the cation chains.

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catena-Poly[[tetra-kis-(hexa-methyl-phospho-ramide-?O)bis-(nitrato-?O,O')samarium(III)] [silver(I)-di-?-sulfido-tungstate(VI)-di-?-sulfido]].

Project description:The Sm atom in the cation of the title salt, {[Sm(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgS(4)W]}(n), is coordinated by eight O atoms derived from two chelating nitrate anions, and four hexamethylphos-phoramide ligand, defining a distorted square-antiprismatic geometry. The anions self-assemble into polymeric chains via W-S-Ag bridges having a [AgS(4)W] repeat unit; the W-Ag-W and Ag-W-Ag angles are 161.657?(17) and 153.978?(9)°, respectively. The title complex is isostructural with the Y, Yb, Eu, Nd, La and Dy isomorphs.

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catena-Poly[[tetra-kis-(hexa-methyl-phospho-ramide-?O)bis-(nitrato-?O,O')cerium(III)] [silver(I)-di-?-sulfido-tungstate(VI)-di-?-sulfido]].

Project description:Hexa-methyl-phospho-ramide (hmp), tetra-thio-tungstate, silver sulfide and cerium nitrate were self-assembled to form a one-dimensional anionic [Ag(4)W(4)S(16)](n) (4n-) chain in the title compound, {[Ce(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n). The asymmetric unit contains four crystallographically independent [Ce(hmp)(4)(NO(3))(2)](+) cations, which leads to a one-dimensional polymeric anionic chain having a tetra-valent [W(4)S(16)Ag(4)] repeat unit. Each central Ce atom is coordinated by eight O atoms from two chelating nitrate and four hmp ligands, which gives rise to a distorted square-anti-prismatic structure. The polymeric chain with average W-Ag-W and Ag-W-Ag bond angles of 163.75 and 151.84°, respectively, presents a distorted linear configuration. The title complex with a non-centrosymmetric structure, is analogous to the Yb, Y, Eu, Nd, La and Dy isomorphs, which exhibit centrosymmetric structures.

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Project description:In the title salt, {[Ho(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n), the anion forms a W/S/Ag polymeric chain along the a axis. The holmium atom in the cation is coordinated by eight O atoms from two nitrate and four hexa-methyl-phospho-ramide ligands in a distorted square-anti-prismatic geometry. Together with the two nitrate ligands, the complex cation in the title compound is univalent, which leads the anion to be univalent as well. The polymeric anionic chain with W-Ag-W and Ag-W-Ag angles of 161.429?(17) and 153.608?(10) °, respectively, presents a distorted linear configuration. The title complex is isotypic with the corresponding Y, Yb, Eu, Nd, La and Dy analogues.

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catena-Poly[[tetra-kis-(hexa-methyl-phospho-ramide-?O)bis-(nitrato-?(2)O,O')lutetium(III)] [silver(I)-di-?-sulfido-tungstate(VI)-di-?-sulfido]].

Project description:In the title compound, {[Lu(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n), hexa-methyl-phospho-ramide (hmp), tetra-thio-tungstate, silver iodide and lutetium nitrate were self-assembled, forming an anionic {[AgWS(4)](-)}(n) chain extending parallel to [001]. The Lu(III) atom in the cation is coordinated by eight O atoms from two nitrate groups and four hmp ligands in a distorted square-anti-prismatic geometry. Together with the two nitrate groups, the cation is monovalent, which leads to the anionic chain having a [WS(4)Ag] repeat unit. The polymeric anionic chain has a distorted linear configuration with W-Ag-W and Ag-W-Ag angles of 161.66?(2) and 153.503?(12)°, respectively. The title complex is isotypic with the Y, Yb, Eu, Nd, La, Dy and Sm analogues.

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Project description:In the title compound, {[Tb(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n), the polymeric anionic chain {[AgWS(4)](-)}(n) extends along [001]. The Tb(III) atom in the cation is coordinated by eight O atoms from two nitrate and four hexamethylphosphate ligands in a distorted square-anti-prismatic geometry. Together with the two nitrate ligands, the cation is univalent, which leads to the anionic chain having a [WS(4)Ag] repeat unit. The polymeric anionic chain has a distorted linear configuration with W-Ag-W and Ag-W-Ag angles of 161.49?(2) and 153.743?(13) °, respectively. The title complex is isotypic with the Y, Yb, Eu, Nd, La, Dy, Sm and Lu analogues.

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catena-Poly[[tetra-kis-(hexa-methyl-phospho-ramide-?O)bis-(nitrato-?(2) O,O')erbium(III)] [silver(I)-di-?-sulfido-tungstate(VI)-di-?-sulfido]].

Project description:In the title compound, {[Er(NO3)2(C6H18N3OP)4][AgWS4]} n , the polymeric anionic chain {[AgWS4](-)} n extends along [001]. The Er(III) atom in the cation is coordinated by eight O atoms from two bidentate nitrate anions and four hexa-methyl-phospho-ramide ligands in a distorted square-anti-prismatic geometry. Together with the two nitrate ligands, the cation is monovalent, which leads to the anionic chain having a [WS4Ag] repeat unit. The polymeric anionic chain has a distorted linear configuration, with W-Ag-W and Ag-W-Ag angles of 161.37?(2) and 153.548?(12)°, respectively. The title complex is isotypic with the Y, Yb, Eu, Nd, La, Dy, Sm, Lu and Tb analogues.

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catena-Poly[[tetra-kis(hexa-methyl-phospho-ramide-?O)bis-(nitrato-?O,O')lanthanum(III)] [silver(I)-di-?(2)-sulfido-tungstate(VI)-di-?(2)-sulfido]].

Project description:Hexamethyl-phospho-ramide (hmp), tetra-thio-tungstate(VI), silver sulfide and lanthanum(III) nitrate are self-assembled to form discrete cations one-dimensional poylmeric anionic chains [AgWS(4)](n) (n) (-) in the title compound, {[La(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n). The central La atom in the cation is coordinated by eight O atoms from two nitrate and four hmp ligands. Together with the two nitrate ligands, the cation is monovalent, which leads to the anionic chain having a monovalent repeat unit. The polymeric anionic chain with W?Ag?W and Ag?W?Ag angles of 165.94?(3) and 155.894?(14)° presents a distorted linear configuration. Five N atoms, 18 C atoms and their attached H atoms are disordered equally over two positions.

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catena-Poly[[tetra-kis-(hexa-methyl-phospho-ramide-κO)bis-(nitrato-κO,O')dysprosium(III)] [silver(I)-di-μ-sulfido-tungstate(VI)-di-μ-sulfido]].

Project description:Hexa-methyl-phospho-ramide (hmp), tetra-thio-tungstate, silver sulfide and dysprosium nitrate were self-assembled, forming an anionic [AgWS(4)](n) (n) (-) chain in the title compound, {[Dy(NO(3))(2)(C(6)H(18)N(3)OP)(4)][AgWS(4)]}(n). The central Dy atom in the cation is coordinated by eight O atoms from two didentate nitrate and four hmp ligands, giving rise to a distorted square anti-prismatic structure. Together with the two nitrate ligands, the cation is univalent, which leads to the anionic chain having a [WS(4)Ag] repeat unit. The polymeric anionic chain, with W-Ag-W and Ag-W-Ag angles 161.16 (2) and 153.606 (11)°, respectively, presents a distorted linear configuration. The title compound is isotypic with other rare earth complexes.

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