scholarly journals cis-Bis(2,2′-bipyridine-κ2N,N′)bis(pyridin-4-amine-κN1)ruthenium(II) bis(hexafluoridophosphate) acetonitrile monosolvate

2013 ◽  
Vol 69 (2) ◽  
pp. m77-m78
Author(s):  
Mariana R. Camilo ◽  
Felipe T. Martins ◽  
Valéria R. S. Malta ◽  
Javier Ellena ◽  
Rose M. Carlos
Keyword(s):  
Hydrogen Bonds ◽  
Building Blocks ◽  
Title Complex ◽  
Screw Axis ◽  
Complex Molecules ◽  
Diimine Ligands ◽  
Counter Ions ◽  
Distorted Octahedral ◽  
Solvent Molecules ◽  
Octahedral Configuration

In the title complex, [Ru(C10H8N2)2(C5H6N2)2](PF6)2·CH3CN, the RuIIatom is bonded to two α-diimine ligands,viz.2,2′-bipyridine, in acisconfiguration and to two 4-aminopyridine (4Apy) ligands in the expected distorted octahedral configuration. The compound is isostructural with [Ru(C10H8N2)2(C5H6N2)2](ClO4)2·CH3CN [Duanet 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 molecules as acceptors. Indeed, N—H...F interactions give rise to an intermolecularly locked assembly of two centrosymmetric complex molecules and two PF6−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 PF6−ions and acetonitrile molecules, giving rise to ribbons running parallel to [011]. 21-Screw-axis-related complex molecules and PF6−counter-ions alternate in helical chains formed along theaaxis by means of these contacts.

scholarly journals cis-Bis(1,10-phenanthroline-κ2N,N′)bis(pyridin-4-amine-κN1)ruthenium(II) bis(hexafluoridophosphate)

2013 ◽  
Vol 69 (2) ◽  
pp. m75-m76
Author(s):  
Mariana R. Camilo ◽  
Felipe T. Martins ◽  
Valéria R. S. Malta ◽  
Javier Ellena ◽  
Rose M. Carlos
Keyword(s):  
Title Complex ◽  
Coordination Geometry ◽  
Screw Axis ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Diimine Ligands ◽  
Hydrogen Bonding Interactions ◽  
Counter Ions ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the title complex, [Ru(C12H8N2)2(C5H6N2)2](PF6)2, the RuIIatom is bonded to two α-diimine ligands,viz.1,10-phenanthroline (phen), in acisconfiguration, in addition with with two 4-aminopyridine (4Apy) ligands, resulting in a distorted octahedral coordination geometry. N—H...F hydrogen-bonding interactions play an important role in the crystal assembly: 21-screw-axis-related complex molecules and PF6−counter-ions alternate in helical chains formed along theaaxis by means of these contacts. N—H...π contacts (H...centroid = 3.45 Å) are responsible for cross-linking between the helical chains along [001].

scholarly journals Chlorido[5-methoxy-1H-benzimidazole-2(3H)-thione-κS]bis(triphenylphosphane-κP)copper(I) methanol disolvate

2014 ◽  
Vol 70 (2) ◽  
pp. m269-m269
Author(s):  
Qing-Xuan Meng
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Short Distance ◽  
Structural Unit ◽  
Chloride Anion ◽  
Title Complex ◽  
Tetrahedral Geometry ◽  
Complex Molecules ◽  
Distorted Tetrahedral Geometry ◽  
Solvent Molecules

In the title complex, [CuCl(C8H8N2OS)(C18H15P)2]·2CH3OH, the CuIion is coordinated by one chloride anion, one S atom from the 5-methoxy-1H-benzimidazole-2(3H)-thione ligand and two P atoms from two triphenylphosphine ligands in a distorted tetrahedral geometry. One of the N-bound H atoms is involved in an intramolecular N—H...Cl hydrogen bond, while another one interacts with the solvent methanol moleculeviaan N—H...O hydrogen bond. Intermolecular O—H...Cl and O—H...O hydrogen bonds link two further complex molecules and four solvent molecules into a centrosymmetric structural unit. The short distance of 3.624 (4) Å between the centroids of the five- and the six-membered rings of two benzimidazole fragments indicates the presence of π–π interactions.

scholarly journals Bis(2,2′-bipyridine)[1,9-bis(diphenylphosphanyl)-1,2,3,4,6,7,8,9-octahydropyrimido[1,2-a]pyrimidin-5-ium]ruthenium(II) hexafluoridophosphate dibromide dichloromethane disolvate monohydrate

2013 ◽  
Vol 69 (12) ◽  
pp. m640-m641 ◽  
Author(s):  
Congcong Shang ◽  
Laure Vendier ◽  
Pierre Sutra ◽  
Alain Igau
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Solvent Molecules ◽  
Cl Atom

In the cation of the title complex, [Ru(C31H32N3P2)(C10H8N2)2](PF6)(Br)2·2CH2Cl2·H2O, the ruthenium ion is coordinated in a distorted octahedral geometry by two 2,2′-bipyridine (bpy) ligands and a chelating cationicN-diphenylphosphino-1,3,4,6,7,8-hexahydro-2-pyrimido[1,2-a]pyrimidine [(PPh2)2-hpp] ligand. The tricationic charge of the complex is balanced by two bromide and one hexafluoridophosphate counter-anions. The compound crystallized with two molecules of dichloromethane (one of which is equally disordered about a Cl atom) and a water molecule. In the crystal, one of the Br anions bridges two water moleculesviaO—H...Br hydrogen bonds, forming a centrosymmetric diamond-shapedR42(8) motif. The cation and anions and the solvent molecules are linkedviaC—H...F, C—H...Br, C—H...Cl and C—H...O hydrogen bonds, forming a three-dimensional network.

scholarly journals Tetrakis(azido-κN)(di-2-pyridylamine-κ2N2,N2′)platinum(IV)

2012 ◽  
Vol 68 (4) ◽  
pp. m447-m447 ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Complex ◽  
Complex Molecules ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Centroid Distance ◽  
Distorted Octahedral ◽  
A Chain ◽  
Ring Centroid

In the title complex, [Pt(N3)4(C10H9N3)], the PtIVion is six-coordinated in a slightly distorted octahedral environment by the two pyridine N atoms of the chelating di-2-pyridylamine (dpa) ligand and four N atoms from four azide anions. The dpa ligand is not planar, the dihedral angle between the pyridine rings being 20.0 (3)°. The azide ligands are slightly bent [N—N—N = 173.5 (8)–175.1 (8)°]. In the crystal, the complex molecules are connected by N—H...N hydrogen bonds, forming a chain along thebaxis. An intermolecular π–π interaction between the chains is also present, the ring centroid–centroid distance being 3.713 (4) Å.

scholarly journals Crystal structure of bromido-fac-tricarbonyl[5-(3,4,5-trimethoxyphenyl)-3-(pyridin-2-yl)-1H-1,2,4-triazole-κ2N2,N3]rhenium(I) methanol monosolvate

2017 ◽  
Vol 73 (4) ◽  
pp. 484-487
Author(s):  
Marharyta I. Kharlova ◽  
Kseniia O. Piletska ◽  
Kostiantyn V. Domasevitch ◽  
Alexander V. Shtemenko
Keyword(s):  
Hydrogen Bonds ◽  
Double Layers ◽  
Carbonyl Ligand ◽  
Complex Molecules ◽  
Carbonyl Ligands ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Triazole Ligand ◽  
Solvent Molecules ◽  
Centrosymmetric Dimers

In the title compound, [ReBr(C16H16N4O3)(CO)3]·CH3OH, the ReIatom adopts a distorted octahedral coordination sphere with a facial arrangement of the three carbonyl ligands. Two N atoms of the chelating 5-(3,4,5-trimethoxyphenyl)-3-(pyridin-2-yl)-1H-1,2,4-triazole ligand and two carbonyl ligands define the equatorial plane of the complex, with the third carbonyl ligand and the bromide ligand in axial positions. Conventional hydrogen bonds including the methanol solvent molecules assemble the complex molecules through mutual N—H...O—H...Br links [N...O = 2.703 (3) Å and O...Br = 3.255 (2) Å] into centrosymmetric dimers, whereas weaker C—H...O and C—H...Br hydrogen bonds [C...O = 3.215 (3)–3.390 (4) Å and C...Br = 3.927 (3) Å] connect the dimers into double layers parallel to the (111) plane.

scholarly journals Synthesis and crystal structures of manganese(I) carbonyl complexes bearing ester-substituted α-diimine ligands

2020 ◽  
Vol 76 (9) ◽  
pp. 1433-1436
Author(s):  
Takatoshi Kanno ◽  
Tsugiko Takase ◽  
Dai Oyama
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Coordination Sphere ◽  
Carbonyl Complexes ◽  
Complex Molecules ◽  
Carbonyl Ligands ◽  
Distorted Octahedral Coordination ◽  
Diimine Ligands ◽  
Distorted Octahedral ◽  
Diimine Ligand

The crystal structures of two manganese(I) complexes with ester-substituted bipyridine or biquinoline supporting ligands are reported, namely, fac-bromidotricarbonyl(diethyl 2,2′-bipyridine-4,4′-dicarboxylate-κ2 N,N′)manganese(I), [MnBr(C16H16N2O4)(CO)3], I, and fac-bromidotricarbonyl(diethyl 2,2′-biquinoline-4,4′-dicarboxylate-κ2 N,N′)manganese(I), [MnBr(C24H20N2O4)(CO)3], II. In both complexes, the manganese(I) atom adopts a distorted octahedral coordination sphere defined by three carbonyl C atoms, a Br− anion and two N atoms from the chelating α-diimine ligand. Both complexes show fac configurations of the carbonyl ligands. In I, the complex molecules are linked by C—H...Br hydrogen bonds and aromatic π–π contacts. In II, intramolecular C—H...O hydrogen bonds are present as well as intermolecular C—H...O and C—H...Br hydrogen bonds and π–π interactions.

scholarly journals Crystal structure of bis(N-tert-butylbenzamidinium) hexachloridozirconate(IV) dichloromethane disolvate

2016 ◽  
Vol 72 (4) ◽  
pp. 432-435 ◽  
Author(s):  
Zhi-Hao Jiang ◽  
Jian-Ping Zhao ◽  
Xiu-Ming Ma ◽  
Sheng-Di Bai
Keyword(s):  
Hydrogen Bonds ◽  
Complex Anion ◽  
Complex Salt ◽  
Membered Ring ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Solvent Molecules

In the ZrIVcomplex anion of the title complex salt, [(C4H9)HNC(C6H5)NH2]2[ZrCl6]·2CH2Cl2, the ZrIVcation, located on an inversion centre, is coordinated by six Cl−anions in a distorted octahedral geometry with Zr—Cl distances in the range 2.433 (2)–2.4687 (19) Å; in the amidinium cation, the dihedral angle between the aromatic ring and [NCN] plane is 43.3 (4)°. In the crystal, the amidinium cations and [ZrCl6]2−anions are linked by N—H...Cl hydrogen bonds, forming a two-dimensional network extending along thebaxis; two dichloromethane solvent molecules are linked by a pair of weak C—H...Cl hydrogen bonds, forming a centrosymmetric [CHCl]2six-membered ring.

scholarly journals Bis(thiocyanato-κN)[tris(pyridin-2-ylmethyl)amine-κ4N]iron(II)

2014 ◽  
Vol 70 (2) ◽  
pp. m35-m35
Author(s):  
Jing-Wei Dai ◽  
Zhao-Yang Li ◽  
Osamu Sato
Keyword(s):  
Hydrogen Bonds ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Stacking Interactions ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Π Stacking ◽  
Centroid Distance ◽  
Solvent Molecules ◽  
Amine Ligand

In the title complex, [Fe(NCS)2(C18H18N4)], the FeIIcation is chelated by a tris(2-pyridylmethyl)amine ligand and coordinated by two thiocyanate anions in a distorted N6octahedral geometry. In the crystal, weak C—H...S hydrogen bonds and π–π stacking interactions between parallel pyridine rings of adjacent molecules [centroid–centroid distance = 3.653 (3) Å] link the molecules into a two-dimensional supramolecular architecture. The structure contains voids of 124 (9) Å3, which are free of solvent molecules.

scholarly journals Di-μ-chlorido-bis[(2,2′-bipyridine-5,5′-dicarboxylic acid-κ2N,N′)chloridocopper(II)] dimethylformamide tetrasolvate

2013 ◽  
Vol 69 (2) ◽  
pp. m73-m74 ◽  
Author(s):  
Sigurd Øien ◽  
David Stephen Wragg ◽  
Karl Petter Lillerud ◽  
Mats Tilset
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Cooh Group ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Centroid Distance ◽  
Solvent Molecules ◽  
Hydrogen Bonded

In the title compound, [Cu2Cl4(C12H8N2O4)2]·4C3H7NO, which contains a chloride-bridged centrosymmetric CuIIdimer, the CuIIatom is in a distorted square-pyramidal 4 + 1 coordination geometry defined by the N atoms of the chelating 2,2′-bipyridine ligand, a terminal chloride and two bridging chloride ligands. Of the two independent dimethylformamide molecules, one is hydrogen bonded to a single –COOH group, while one links two adjacent –COOH groupsviaa strong accepted O—H...O and a weak donated C(O)—H...O hydrogen bond. Two of these last molecules and the two –COOH groups form a centrosymmetric hydrogen-bonded ring in which the CH=O and the –COOH groups by disorder adopt two alternate orientations in a 0.44:0.56 ratio. These hydrogen bonds link the CuIIcomplex molecules and the dimethylformamide solvent molecules into infinite chains along [-111]. Slipped π–π stacking interactions between two centrosymmetric pyridine rings (centroid–centroid distance = 3.63 Å) contribute to the coherence of the structure along [0-11].

Mono- and dinuclear CuII complexes of the benzyldipicolylamine (BDPA) ligand: crystal structure, synthesis and characterization

2017 ◽  
Vol 73 (11) ◽  
pp. 1024-1029
Author(s):  
Dharmalingam Sivanesan ◽  
Min Hye Youn ◽  
Ki Tae Park ◽  
Hak Joo Kim ◽  
Andrews Nirmala Grace ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Reaction Medium ◽  
Bound Water ◽  
Dinuclear Complex ◽  
Residual Moisture ◽  
Structure Synthesis ◽  
Distorted Octahedral ◽  
Vis Spectroscopy ◽  
Ft Ir ◽  
Solvent Molecules

The crystal structures of mono- and dinuclear CuII trifluoromethanesulfonate (triflate) complexes with benzyldipicolylamine (BDPA) are described. From equimolar amounts of Cu(triflate)2 and BDPA, a water-bound CuII mononuclear complex, aqua(benzyldipicolylamine-κ3 N,N′,N′′)bis(trifluoromethanesulfonato-κO)copper(II) tetrahydrofuran monosolvate, [Cu(CF3SO3)2(C19H19N3)(H2O)]·C4H8O, (I), and a triflate-bridged CuII dinuclear complex, bis(μ-trifluoromethanesulfonato-κ2 O:O′)bis[(benzyldipicolylamine-κ3 N,N′,N′′)(trifluoromethanesulfonato-κO)copper(II)], [Cu2(CF3SO3)4(C19H19N3)2], were synthesized. The presence of residual moisture in the reaction medium afforded water-bound complex (I), whereas dinuclear complex (II) was synthesized from an anhydrous reaction medium. Single-crystal X-ray structure analysis reveals that the CuII centres adopt slightly distorted octahedral geometries in both complexes. The metal-bound water molecule in (I) is involved in intermolecular O—H...O hydrogen bonds with triflate ligands and tetrahydrofuran solvent molecules. In (II), weak intermolecular C—H...F(triflate) and C—H...O(triflate) hydrogen bonds stabilize the crystal lattice. Complexes (I) and (II) were also characterized fully using FT–IR and UV–Vis spectroscopy, cyclic voltammetry and elemental analysis.

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