trans‐(Methanol)(methyl­di­phenyl­phosphine)­bis­(pentane‐2,4‐dionato)­cobalt(III) hexa­fluoro­phosphate hydrate

The title compound [Co(C₅H₇O₂)₂(C₁₃H₁₃P)(CH₄O)]PF₆·H₂O, (I), which was converted from trans‐[Co(acac)₂(PMePh₂)(H₂O)]PF₆ (acac is pentane‐2,4‐dionato) by recrystallization from aqueous methanol, has been confirmed as have a coordinated methanol ligand. The molecular structure of the complex cation, trans‐[Co(acac)₂(PMePh₂)(MeOH)]⁺, is similar to that of the above aqua complex found in the ClO₄ salt [Kashiwabara et al. (1995). Bull. Chem. Soc. Jpn, 68 , 883–888]. The Co—O bond length for the coordinated methanol is 2.059 (3) Å. There is an intermolecular hydrogen bond between the OH group of the coordinated methanol and one of the O atoms of the acac ligands in an adjacent complex cation [O5?O3′ = 2.914 (4) Å], giving a centrosymmetric dimeric dicationic complex.     

(Tetra­hydro­furan)­potassium mer‐trans‐tris­(carbazolyl)­di­chloro(tetra­hydro­furan)­zirconate

In the title compound, [K(C₄H₈O)][ZrCl₂(C₁₂H₈N)₃(C₄H₈O)], the Zr atom is pseudo‐octahedral, with two Cl ligands in trans positions. There is extensive interaction between the potassium cation and two of the aromatic carbazolyl ligands in η⁶ [C⃛K = 3.167 (3)–3.331 (3) Å] and η² [C⃛K = 3.147 (3)–3.268 (2) Å] fashions.     

Aqua­(5,6‐di­methyl‐1,10‐phenanthroline‐N,N′)­(glycolato‐O,O′)­copper(II) nitrate

The title compound, [Cu(C₂H₃O₃)(C₁₄H₁₂N₂)(H₂O)]NO₃, is the first example of a mixed copper glycolate compound with a di­imine ligand. The copper(II) compound lies in a slightly distorted square‐pyramidal coordination environment with one water mol­ecule coordinated in the apical position. The glycolate ligand binds to the Cu atom as a chelate through a carboxyl­ate and the α‐OH O atom which, together with the N atoms of the substituted phenanthroline, constitute the base of the pyramid.     

Tetrakis­(di­methyl­amido)­vanadium(IV)

The title compound, [V(C₂H₆N)₄], (I), has non‐crystallographic D_2d molecular symmetry and contains an approximately tetrahedrally coordinated V atom with di­methyl­amido ligands. Each N atom features a nearly trigonal planar geometry. There are two independent mol­ecules of (I) in the asymmetric unit. The results are compared with those previously reported for gas‐phase electron‐diffraction studies [Haaland, Rypdal, Volden & Andersen (1992). J. Chem. Soc. DaltonTrans. pp. 891–895].     

Bis­[tris­(ethyl­enedi­amine)­cobalt(III)] di­chloro­bis­[μ‐(1‐hydroxy­ethyl­idene)­di­phospho­nato(4–)]­di­ruthenium(II,­III)­(Ru–Ru) chloride trihydrate

In the title compound, [Co(C₂H₈N₂)₃]₂[Ru₂(C₂H₄O₇P₂)₂Cl₂]Cl·3H₂O, the building unit contains two crystallographically independent dinuclear [Ru₂(hedp)₂Cl₂]⁵⁻ anions, where hedp [viz. (1‐hydroxy­ethyl­idene)­di­phospho­nate] serves as a bis‐chelating bridging ligand, two types of [Co(en)₃]³⁺ cations, one uncoordinated Cl⁻ anion and five water mol­ecules of crystallization. The [Ru₂(hedp)₂Cl₂]⁵⁻ anions are connected to one another, forming one‐dimensional chains along the a axis. The [Co(en)₃]³⁺ cations are located between these chains and lie across inversion centres. An extensive series of hydrogen bonds lead to the formation of a three‐dimensional supramol­ecular network structure, with channels generated along the [100] direction. The uncoordinated water mol­ecules and Cl⁻ anions reside in these channels.     

trans‐[1,3‐Bis(2,4‐di­methyl­phenyl)­imidazolidin‐2‐yl­idene]­di­chloro­(tri­phenyl­phosphine‐κP)­palladium(II)

The title complex, [PdCl₂(C₁₉H₂₂N₂)(C₁₈H₁₅P)], shows slightly distorted square‐planar coordination of the palladium(II) metal center. The Pd—C bond distance between the N‐heterocyclic ligand and the metal atom is 2.008 (3) Å. The dihedral angle between the two di­methyl­phenyl ring planes is 33.17 (13)°.     

Ammonium di­chloro­bis­(di­methyl­glyoximato‐N,N′)­iridate(III)

In the title compound, (NH₄)[IrCl₂(C₄H₇N₂O₂)₂], (I), the Ir atom is octahedrally coordinated by two trans Cl^? and two di­methyl­glyoximate chelate ligands in the equatorial plane. A two‐dimensional hydrogen‐bond network between ammonium cations NH₄⁺ and anionic [IrCl₂(C₄H₇N₂O₂)₂]^? complexes is extended along the bc plane.     

2‐[3‐Furyl­(hydroxy)­methyl]‐2,3‐di­methyl­cyclo­hexanone

In the mol­ecule of the title compound, C₁₃H₁₈O₃, there is a syn relationship between the two vicinal methyl groups. The six‐membered ring adopts a chair conformation, with one equatorial and two axial groups, and the furyl group is almost parallel to the ketone group. Intermolecular hydrogen bonds [O—H?O=C 2.814 (3) Å] form chains along [100].     

1‐(2‐Hydroxy‐4,6‐di­methyl­phenyl)­ethanone

In the crystal of the title compound, C₁₀H₁₂O₂, there are two symmetry‐independent mol­ecules, which are essentially superimposable. Each mol­ecule exhibits an intramolecular O—H?O hydrogen bond, with O?O separations of 2.483 (4) and 2.468 (4) Å.     

Di­methyl(2‐methyl­phenyl)­ammonium hydroxo­tris­(penta­fluoro­phenyl)­borate

In the title compound, [(CH₃)₂(C₇H₇)NH][(C₆F₅)₃B(OH)] or C₉H₁₄N⁺·C₁₈HBF₁₅O^?, the distorted tetrahedral borate anions are strongly hydrogen bonded to the substituted ammonium cations. The N?O separation in the N—H?O hydrogen bond is 2.728 (3) Å.     

4,4′‐(Azino­di­methyl­ene)­dipyridinium chloranilate di­chloro­methane disolvate

The di­chloro­methane disolvate of 4,4′‐(azino­di­methyl­ene)­dipyridinium chloranilate, C₁₂H₁₂N₄²⁺·C₆Cl₂O₄²⁻·2CH₂Cl₂, con­sists of one‐dimensional hydrogen‐bonded molecular tapes that propagate along the [10] direction. Both cations and anions lie across centres of inversion. The molecular tapes are planar but do not stack in the expected segregated manner, instead having chloranilate anions sandwiched between azine groups.     

Aqua­(phthalocyaninato)­magnesium

The title compound, [Mg(C₃₂H₁₆N₈)(H₂O)], crystallizes with two MgPc(H₂O) mol­ecules (Pc is phthalocyaninate) in the asymmetric unit. The geometries of the two mol­ecules are very similar, with the Mg atoms each 4+1‐coordinated by four iso­indole N atoms at the base and by the O atom of the water mol­ecule. The Mg atoms are displaced by 0.447 (1) and 0.468 (1) Å from the basal coordination planes towards the water O atoms. O—H?N hydrogen bonds form dimers stacked along the b axis in a herring‐bone fashion.     

The bis(η5‐cyclo­penta­dienyl)­methyl­zirconium(IV) methyl­tris­(penta­fluoro­phenyl)­borate ion pair

The title complex, [Zr(CH₃)(C₅H₅)₂][CH₃B(C₆F₅)₃], crystallizes as an ion pair linked through an unsymmetrical methyl bridge. The bridging Zr—Me distance [2.556 (2) Å] is significantly longer than the terminal Zr—Me distance [2.251 (3) Å], while the Zr—C—B angle approaches linearity [169.1 (2)°].     

[Hydroxy­tris­(penta­fluoro­phenyl)­borato‐O][N‐iso­propyl‐2‐(iso­propyl­amino)­troponiminato‐N]­methyl­indium(III)

The title complex, [In(CH₃)(C₁₈HBF₁₅O)(C₁₃H₁₉N₂)], crystallizes as an ion pair linked by a μ‐hydro­xo bridge. There are two independent mol­ecules in the asymmetric unit that exhibit essentially identical metric parameters, but different conformations.     

Aqua­di­chloro­(di‐2‐pyridyl­di­azene)copper(II) monohydrate

The crystal structure of the mononuclear title complex, [CuCl₂(C₁₀H₈N₄)(H₂O)]·H₂O, shows an s‐cis/E/s‐trans‐configured di‐2‐pyridyl­diazene ligand, with the square‐pyramidal Cu^II ion coordinated to one pyridyl and one diazene N atom together with two Cl atoms and one aqua ligand. The crystal packing involves both hydrogen‐bonding and π–π interactions. The solvent water mol­ecule links three monomers to one another through hydrogen‐bonding interactions in which two monomers are linked via chloro ligands and the third via the aqua ligand. Face‐to‐face and weak slipped π–π interactions also occur between di‐2‐pyridyl­diazene moieties, and these interactions are responsible for the interchain packing.     

Tetrakis­(tetra­hydro­furan‐κO)­lithium mer‐tris­(carbazolyl‐κN)‐trans‐di­chloro(tetra­hydro­furan‐κO)­zirconate

In the title compound, [Li(C₄H₈O)₄][ZrCl₂(C₁₂H₈N)₃(C₄H₈O)], the environment of the Zr atom is pseudo‐octahedral, with the three carbazolyl ligands in a mer configuration. The counter‐ion of the zirconium complex is composed of an Li atom surrounded by four tetra­hydro­furan (THF) mol­ecules. The THF mol­ecule attached to the Zr atom is disordered over two sites, as are two of the THF mol­ecules in the lithium moiety. All bond distances and angles are consistent with those in complexes with similar structural entities. The Zr—N bond distances are 2.2185 (18) and 2.167 (3) Å.     

1‐[(4‐Chloro­benzoyl)­methyl]‐4‐(N,N‐di­methyl­amino)­pyridinium bromide sesquihydrate and 1‐[(4‐bromo­benzoyl)­methyl]‐4‐(N,N‐di­methyl­amino)­pyridinium bromide sesquihydrate

The title compounds, C₁₅H₁₆ClN₂O⁺·Br⁻·1.5H₂O and C₁₅H₁₆BrN₂O⁺·Br⁻·1.5H₂O, are isomorphous. The benzene ring is oriented nearly normal to the pyridine ring in both compounds. The molecular packing is mainly influenced by intermolecular O—H⋯O and O—H⋯Br interactions, as well as weak intramolecular C—H⋯O interactions. The H₂OBr⁻ units form an extended water–bromide chain, with a bridging water mol­ecule on a twofold axis.     

1,4‐Di­methyl­pyridinium hexakis­(di­methyl­form­amide‐κO)­calcium(II) dodecamolybdophosphate

In the title compound, (C₇H₁₀N)[Ca(C₃H₇NO)₆][PMo₁₂O₄₀], two types of cations {viz. 1,4‐di­methyl­pyridinium and a [Ca(DMF)₆]²⁺ complex cation (DMF is di­methyl­form­amide)} and dodecamolybdophosphate (tetra­conta­oxo­phos­phido­dodeca­molybdate) anions form an infinite three‐dimensional assembly via electrostatic forces.     

Dimeric hexakis(4‐methyl­benzoato)­bis(1,10‐phenanthroline)didyspros­ium(III)

The title compound, [Dy₂(C₈H₇O₂)₆(C₁₂H₈N₂)₂], forms binuclear complexes, viz. di‐μ‐4‐methyl­benzoato‐κ⁴O:O′‐bis[bis(4‐methyl­benzoato‐κ²O,O′)(1,10‐phenanthroline‐κ²N,N′)dyspros­ium(III)] tetra‐μ‐4‐methyl­benzoato‐κ⁸O:O′‐bis[(4‐methyl­benzoato‐κ²O,O′)(1,10‐phenanthroline‐κ²N,N′)dyspros­ium(III)]. There are two independent binuclear com­plexes in the asymmetric unit, both of which are centrosymmetric. In one, the Dy^III ions are linked by two bridging 4‐­methyl­benzoate groups, while in the other, the Dy^III ions are linked by four bridging 4‐methyl­benzoate groups. The remaining 4‐methyl­benzoate groups and 1,10‐phenanthroline units coordinate to just one metal ion in bidentate modes.