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Tris(tetra-methyl-ammonium) tetra-μ(2)-sulfido-tetra-sulfidocopper(I)dimolyb-denum(VI) N,N-dimethyl-formamide solvate.

ABSTRACT: The title compound, (C(4)H(12)N)(3)[CuMo(2)S(8)]·C(3)H(7)NO, was obtained from the self-assembly of tetra-thio-molybdate, tetra-methyl-ammonium nitrate and cuprous sulfide in dimethyl-formamide (DMF). The asymmetric unit contains three (NMe(4))(+) cations, one [Mo(2)S(8)Cu](3-) anion and one DMF solvent mol-ecule, and no obvious inter-actions are observed between these species. The trinuclear anion can be viewed as fused [MoS(4)Cu](-) units sharing a copper center. The geometric parameters of the trivalent anion are comparable to those reported for other related salts including isomorphous anions, namely (NEt(4))(2)(PPh(4))[Mo(2)S(8)Cu] (a) and (Ph(3)P=N=PPh(3))(2)(NEt(4))[W(2)S(8)Cu]·2CH(3)CN (b). However, the Mo-Cu-Mo angle is found to be 160.24 (3)° for the title salt, while this angle is 162.97 (2)° in (a) and the W-Cu-W angle is 170.3 (2)° in (b), indicating that the largest deviation from linearity is in the title compound.

SUBMITTER: Cao Y

PROVIDER: S-EPMC2959934 | biostudies-literature |

REPOSITORIES: biostudies-literature

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μ(3)-Iodo-tri-μ(3)-sulfido-sulfidotris[tris-(4-methoxy-phen-yl)phosphine-κP]tri-copper(I)tungsten(VI) N,N-dimethyl-formide solvate.

Project description:A new W/S/Cu cluster, [Cu(3)WIS(4)(C(21)H(21)O(3)P)(3)]·C(3)H(7)NO, was formed by the reaction of ammonium tetra-thio-tungstate(VI), cuprous iodide and tris-(4-methoxy-phen-yl)phosphine in N,N-dimethyl-formamide. The title compound exhibits a heavily distorted cubane-like skeleton in which the average Cu-I, Cu-S and W-μ(3)-S distances are 2.934, 2.302 and 2.249 Å, respectively. The W atom exhibits tetrahedral geometry, formed by three μ(3)-S and one terminal S atom; the W-S(terminal) bond length is 2.1426 (13) Å. Each Cu atom is coordinated by one P atom from a tris-(4-methoxy-phen-yl)phosphine (mop), two μ(3)-S and one μ(3)-I atom, forming a distorted tetra-hedral coordination geometry. Some of the mop ligand methyl groups have large librations. Together with the three neutral mop ligands, the title compound is neutral; this contrasts with the all-halogen-coordinated Mo/S/Ag clusters with the same structure, which carry negative charge.

| S-EPMC2914952 | 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

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

Project description: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.

| S-EPMC2960287 | biostudies-literature

Bis[μ(2)-bis-(diphenyl-phosphino)methane]bis-(μ(2)-ethane-1,2-dithiol-ato)-μ(4)-sulfido-μ(2)-sulfido-disulfidodimolybdenum(V)disilver(I) dimethyl-formamide tris-olvate.

Project description:Treatment of [Et(4)N](2)[(edt)(2)Mo(2)S(2)(μ-S)(2)] (edt = ethane-dithio-l-ate) with two equivalents of Ag(CH(3)CN)(4)ClO(4) in the presence of bis-(diphenyl-phosphino)methane (dppm) ligand gives rise to the title tetra-nuclear cluster, [Ag(2)Mo(2)(C(2)H(4)S(2))(2)S(4)(C(25)H(22)P(2))(2)]·3C(3)H(7)NO. The complex mol-ecule and one of the dimethyl-formamide (DMF) solvent mol-ecules occupy special positions on a mirror plane. The mol-ecular structure of the complex may be visualized as being built of [Mo(2)S(2)(μ-S)(2)(edt)(2)](2-) dianions and [Ag(2)(dppm)(2)](2+) dications connected by two Ag-μ-S(edt) and two Ag-μ(4)-S bonds.

| S-EPMC2971914 | biostudies-literature

Redetermination of cyclo-tetra-kis-(μ-5,10,15,20-tetra-4-pyridyl-porphyrinato)tetra-zinc(II) dimethyl-formamide octa-solvate trihydrate at 100 K.

Project description:The structure of the title compound, [Zn(4)(C(40)H(24)N(8))(4)]·8C(3)H(7)NO·3H(2)O, has been redetermined at 100 K. The redetermination is of significantly higher precision and gives further insight into the disorder of pyridyl groups and solvent mol-ecules. The mol-ecules of (5,10,15,20-tetra-4-pyridyl-porphyrinato)zinc(II) (ZnTPyP) form homomolecular cyclic tetra-mers by coordination of a peripheral pyridyl group to the central Zn atom of an adjacent symmetry-related mol-ecule. The tetra-mer so formed exhibits mol-ecular S(4) symmetry and is located about a crystallographic fourfold rotoinversion axis. Severely disordered dimethyl-formamide and water mol-ecules are present in the crystal, the contributions of which were omitted from refinement. Inter-molecular C-H⋯N hydrogen bonding is observed.

| S-EPMC3051794 | biostudies-literature

Poly[tetra-kis-(dimethyl-formamide)tris(?(4)-terephthalato)trimagnesium].

Project description:The title framework compound, [Mg(3)(C(8)H(4)O(4))(3)(C(3)H(7)NO)(4)](n) or [Mg(3)(bdc)(3)(DMF)(4)](n), was obtained as a side product of the solvothermal reaction of magnesium nitrate, terephthalic acid (bdcH(2)), and 1,3-bis-(4-pyrid-yl)propane in a 1:2:1 ratio in dimethyl-formamide (DMF). The asymmetric unit consists of three Mg(II) cations, three terephthalate anions, and four coordinating DMF mol-ecules. One of the four DMF mol-ecules was refined as disordered over two mutually exclusive positions, with an occupancy rate for the major moiety of 0.923?(4). The three Mg(II) cations possess distorted octa-hedral coordination geometries that form linear Mg trimers. Of the three Mg(II) cations, the central Mg(II) is octa-hedrally coordinated by six different carboxyl-ate O atoms. The terminal Mg(II) cations are bonded to four O atoms of three bdc linkers and to two O atoms of coordinating DMF mol-ecules. The compound has a two-dimensional 3(6)-network structure parallel to (001) that is formed by connection of the Mg trimers as distorted octa-hedral nodes to the bdc ligands as linkers.

| S-EPMC3470164 | biostudies-literature

Tetra-kis(8-quinolinolato-?N,O)hafnium(IV) dimethyl-formamide solvate monohydrate.

Project description:In the title compound, [Hf(C(9)H(6)NO)]·C(3)H(7)NO·H(2)O, the hafnium(IV) atom is coordinated by four 8-quinolinolate (Ox) ligands, forming a slightly distorted square-anti-prismatic coordination polyhedron. The crystal packing is controlled by O-H?O and C-H?O hydrogen-bonding inter-actions and ?-? inter-actions between quinoline ligands of neighbouring mol-ecules. The inter-planar distances vary between 3.150?(1) and 3.251?(2)?Å, while centroid-centroid distances vary from 3.589?(1) to 4.1531?(1)?Å.

| S-EPMC2979151 | biostudies-literature

Poly[(N,N-dimethyl-formamide-κO)tris-(μ-naphthalene-1-acetato)terbium(III)].

Project description:In title compound, [Tb(C(12)H(9)O(2))(3)(C(3)H(7)NO)](n), the Tb atom is nine-coordinated by nine O atoms from three naphthalene-1-acetate and one N,N-dimethyl-formamide ligands. The Tb atoms are linked by three bridging naphthalene-1-acetate ligands into a chain parallel to the b axis. Further stabilization of the structure is accomplished by non-classical C-H⋯O hydrogen bonds and C-H⋯π interactions.

| S-EPMC2959846 | biostudies-literature

Acetoguanamine N,N-dimethyl-formamide solvate.

Project description:The structure of acetoguanamine (or 2,4-diamino-6-methyl-1,3,5-triazine) has been determined as the N,N-dimethyl-formamide solvate, C(4)H(7)N(5)·C(3)H(7)NO. The mol-ecular components are associated in the crystal structure to form ribbons stabilized by three N-H?N and one N-H?O hydrogen bonds which involve NH groups as donors and the N atoms of the heterocyclic ring and the carbonyl O atom of the solvent as acceptors.

| S-EPMC2960528 | biostudies-literature

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.

| S-EPMC2960978 | biostudies-literature

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