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Tetra-μ-acetato-κO:O'-bis-[(3-cyano-pyridine-κN)ruthenium(II,III)](Ru-Ru) hexa-fluoridophosphate 1,2-dichloro-ethane monosolvate.

ABSTRACT: The title compound, [Ru(2)(CH(3)CO(2))(4)(C(6)H(4)N(2))(2)]PF(6)·C(2)H(4)Cl(2), was obtained via a rapid substitution reaction in 2-propanol whereby 3-cyano-pyridine replaces the axial water mol-ecules in the diaquatetra-μ-acetato-diruthenium(II,III) hexa-fluorido-phosphate starting material. The product rapidly precipated and crystals were grown from 1,2-dichloro-ethane. The 1,2-dichloro-ethane mol-ecule of solvation exhibits disorder with two different orientations [occupancy ratio 0.51 (6):0.49 (6)]. All three parts, the cation, the anion and the disordered solvent mol-ecule lie on crystallographic inversion centers. The Ru-Ru bond length of 2.2702 (6) Å fits nicely into the range seen for similar complexes and correlates well with the reduction potential of the complex and donor strength of the axial ligand, 3-cyano-pyridine, as postulated in a previous study [Vamvounis et al. (2000 ▶). Inorg. Chim. Acta, 305, 87-98]. The 3-cyano-pyridine ligands orient themselves in an anti configuration with respect to each other and the Ru-Ru-N angle [174.27 (7)°] is close to being linear.

SUBMITTER: Minaker SA

PROVIDER: S-EPMC3246975 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Aqua-bis(dichloro-acetato-κO)(1,10-phenanthroline-κN,N')copper(II).

Project description:In the title complex, [Cu(C(2)HCl(2)O(2))(2)(C(12)H(8)N(2))(H(2)O)], the Cu(II) ion has a distorted square-pyramidal coordination geometry. The equatorial positions are occupied by two N atoms from a 1,10-phenanthroline ligand [Cu-N = 1.994 (3) and 2.027 (3) Å] and two O atoms from dichloro-acetate ligands and a water mol-ecule [Cu-O = 1.971 (2) and 1.939 (2) Å]. One O atom from another dichloro-acetate ligand occupies the apical positon [Cu-O = 2.152 (3) Å]. Inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers. The crystal packing also exhibits weak inter-molecular C-H⋯O hydrogen bonds, π-π inter-actions [centroid-centroid distance = 3.734 (2) Å] and short inter-molecular Cl⋯Cl contacts [3.306 (2) and 3.278 (2) Å].

| S-EPMC2968015 | biostudies-literature

Hexa-μ(2)-acetato-κO:O'-(azido-κN)bis-(methanol-κO)-μ(3)-oxido-trichromium(III) methanol monosolvate.

Project description:In the crystal structure of the title complex, [Cr(3)(CH(3)CO(2))(6)(N(3))O(CH(3)OH)(2)]·CH(3)OH, the trinuclear core has a central O atom; two methanol mol-ecules and an azide ion are coordinated to the Cr(III) atoms in the core. The three Cr(III) atoms form vertices of a nearly equilateral triangle. Each of the six acetate carboxyl-ate groups bridges a Cr-O-Cr fragment. In the crystal, the molecules inter-act with methanol solvent mol-ecules through O-H⋯O and O-H⋯N hydrogen bonds, forming a two-dimensional hydrogen-bonded network parallel to (100).

| S-EPMC3246918 | biostudies-literature

Bis(acetato-κO)[N,N,N',N'-tetra-methyl-ethane-1,2-diamine-κN,N']copper(II).

Project description:In the title compound, [Cu(C(2)H(3)O(2))(2)(C(6)H(16)N(2))], the Cu(II) atom is coordinated by two N atoms from the chelating N,N,N',N'-tetra-methyl-ethane-1,2-diamine ligand and two O atoms from two acetate anions in a distorted square-planar geometry. In addition, there are longer contacts between Cu and the second O atom of each acetate ligand, which could be considered to complete a distorted octa-hedral geometry. The mol-ecules in the crystal structure are connected via inter-molecular C-H⋯O hydrogen-bonding contacts.

| S-EPMC2960195 | biostudies-literature

trans-Chloridobis(4-methyl-pyridine-κN)(4,4',4''-tri-tert-butyl-2,2':6',2''-terpyridine-κN,N',N'')ruthenium(II) hexa-fluoridophosphate acetone monosolvate.

Project description:The title compound, [RuCl(C(6)H(7)N)(2)(C(27)H(35)N(3))]PF(6)·C(3)H(6)O, was obtained unintentionally as the product of the reaction of 1,1'-methyl-enebis(4-methyl-pyridinium) hexa-fluoriso-phos-phate and RuCl(3)(tpy*) (tpy* is 4,4',4''-tri-tert-butyl-2,2':6',2''-terpyridine) in the presence of triethyl-amine and LiCl. The mol-ecular structure of the complex displays an octa-hedral geometry around the Ru(II) ion and the unit cell contains an acetone solvent mol-ecule and one orientationally disordered PF(6) (-) anion (occupancy ratio 0.75:0.25) which is hydrogen bonded to two H atoms of the tpy* ligand of the nearest [RuCl(pic)(2)(tpy*)](+) cation (pic is 4-methyl-pyridine). One of the tert-butyl groups of the tpy* ligand is also disordered over two sets of sites in a 0.75:0.25 ratio.

| S-EPMC3297252 | biostudies-literature

cis-Bis(2,2'-bipyridine-κ(2)N,N')bis-(pyridin-4-amine-κN(1))ruthenium(II) bis-(hexa-fluoridophosphate) acetonitrile monosolvate.

Project description:In the title complex, [Ru(C(10)H(8)N(2))(2)(C(5)H(6)N(2))(2)](PF(6))(2)·CH(3)CN, the Ru(II) atom is bonded to two α-diimine ligands, viz. 2,2'-bipyridine, in a cis configuration and to two 4-amino-pyridine (4Apy) ligands in the expected distorted octa-hedral configuration. The compound is isostructural with [Ru(C(10)H(8)N(2))(2)(C(5)H(6)N(2))(2)](ClO(4))(2)·CH(3)CN [Duan et al. (1999 ▶). J. Coord. Chem.46, 301-312] and both structures are stabilized by classical hydrogen bonds between 4Apy ligands as donors and counter-ions and acetonitrile solvent mol-ecules as acceptors. Indeed, N-H⋯F inter-actions give rise to an inter-molecularly locked assembly of two centrosymmetric complex mol-ecules and two PF(6) (-) counter-ions, which can be considered as the building units of both crystal architectures. The building blocks are connected to one another through hydrogen bonds between 4Apy and the connecting pieces made up of two centrosymmetric motifs with PF(6) (-) ions and acetonitrile mol-ecules, giving rise to ribbons running parallel to [011]. 2(1)-Screw-axis-related complex mol-ecules and PF(6) (-) counter-ions alternate in helical chains formed along the a axis by means of these contacts.

| S-EPMC3569180 | biostudies-literature

catena-Poly[[(1,10-phenanthroline-κN,N')praseodymium(III)]-di-μ-phenoxy-acetato-κO:O'-[(1,10-phenanthroline-κN,N')praseodymium(III)]-di-μ-phenoxy-acetato-κO:O'-di-μ-phenoxy-acetato-κO,O':O;κO:O,O'].

Project description:The title complex, [Pr(2)(C(8)H(7)O(3))(6)(C(12)H(8)N(2))(2)](n), which has an inversion centre midway between the two Pr(III) atoms of the structural unit, forms a one-dimensional polymer bridged alternately by either two bidentate, or two bidentate and two terdentate, phenoxy-acetate carboxyl-ate groups. Each Pr(III) atom is thus nine-coordinated by two N atoms of a 1,10-phenanthroline ligand and seven O atoms from six phenoxy-acetate ligands. The coordination geometry at the Pr(III) atom is distorted tricapped trigonal prismatic. One phenyl ring is disordered over two positions; the site occupancy factors are ca 0.6 and 0.4.

| S-EPMC2960179 | biostudies-literature

Tetra-μ-acetato-κ8 O:O'-bis-[(3-chloro-pyridine-κN)ruthenium(II,III)](Ru-Ru) hexa-fluorido-phosphate 1,2-di-chloro-ethane monosolvate.

Project description:The title compound, [Ru2(μ-O2CCH3)4(C5H4ClN)2]PF6·C2H4Cl2, was obtained via a rapid substitution reaction of 3-chloro-pyridine for water in [Ru2(μ-O2CCH3)4(H2O)2]PF6 in 2-propanol and subsequent crystallization from a di-chloro-ethane solution. The cationic diruthenium(II,III) tetra-acetate core lies on a crystallographic inversion center with Ru-Ru and Ru-N bond lengths of 2.2738 (3) and 2.2920 (17) Å, respectively. The Ru-Ru-N bond angle is close to linear at 176.48 (4)°, and a significant π-stacking inter-action of 3.5649 (16) Å is seen between overlapping pyridine rings of adjacent cations.

| S-EPMC9462009 | biostudies-literature

(Acetato-κO)(2,2'-bipyridine-κN,N')trimethyl-platinum(IV) monohydrate.

Project description:In the title hydrate, [Pt(CH(3))(3)(CH(3)COO)(C(10)H(8)N(2))]·H(2)O, the Pt(IV) atom exhibits a distorted octa-hedral coordination geometry built up by three methyl ligands in a facial arrangement, a bipyridine ligand and a monodentately bound acetate ligand. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds are observed between the water mol-ecule and the platinum complex, which link the mol-ecules into chains along the c axis.

| S-EPMC2983493 | biostudies-literature

Bis(acetato-κO,O')bis-(2-amino-pyridine-κN)nickel(II).

Project description:The title complex, [Ni(C(2)H(3)O(2))(2)(C(5)H(6)N(2))(2)], has a distorted octa-hedral geometry around the Ni atom. Inter-molecular and intra-molecular N-H⋯O hydrogen bonds exist in the crystal structure.

| S-EPMC2915125 | biostudies-literature

Bis(acetato-κO,O')[2,6-bis-(1H-pyrazol-3-yl-κN)pyridine-κN]manganese(II).

Project description:In the title complex, [Mn(CH(3)CO(2))(2)(C(11)H(9)N(5))], the Mn(II) atom is coordinated by the pyridine N atom and two pyrazole N atoms from a 2,6-bis-(pyrazol-3-yl)pyridine ligand and four O atoms from two bidentate acetate ligands. The complex mol-ecules are linked by inter-molecular N-H⋯O hydrogen bonds into a chain along [010]. π-π inter-actions between the pyridine rings and between the pyrazole rings [centroid-centroid distances = 3.772 (2) and 3.546 (2) Å] connect the chains.

| S-EPMC3099944 | biostudies-literature

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