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].

Diacetato[2,6-bis(2-pyridylamino)pyridine]nickel(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m878-m880
Author(s):  
Yin-Qiu Liu ◽  
Xi-Rui Zeng ◽  
Han-Mao Kuang ◽  
Hua-Long Chen ◽  
Qiu-Yan Luo
Keyword(s):  
Pyridine Ring ◽  
Three Dimensional ◽  
Title Complex ◽  
Equatorial Position ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

The Ni atom in the title complex, [Ni(C2H3O2)2(C15H13N5)] or [Ni(CH3COO)2(tpdaH2)] (tpdaH2 is tripyridyldiamine), has a distorted octahedral coordination geometry formed by the tridentate tpdaH2 ligand and two acetate groups. The tpdaH2 ligand is mer-coordinated, with the N atom of the central pyridine ring in the equatorial position and the N atoms of the peripheral pyridine rings in the axial positions. The remaining three equatorial positions are occupied by the O atoms of two acetate anions. The H atoms of both NH groups of the tpdaH2 ligand are involved in strong hydrogen bonds with O atoms of adjacent complex molecules to form a three-dimensional network.

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 Bis(5-amino-1H-tetrazole-κN4)diaqua(oxalato-κ2O1,O2)cadmium

2013 ◽  
Vol 69 (12) ◽  
pp. m645-m646
Author(s):  
Qian Liang ◽  
Yulin Wang ◽  
Yan Zhao ◽  
Gaojuan Cao
Keyword(s):  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Oxalate Ligand ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the monomeric title complex, [Cd(C2O4)(CH3N5)2(H2O)2], the CdIIion exhibits a distorted octahedral coordination geometry, with the equatorial plane defined by two O atoms from an oxalate ligand and two N atoms from two 5-amino-1H-tetrazole ligands; the axial sites are occupied by two water molecules, with longer Cd—O bond lengths. An intramolecular N—H...O hydrogen bond occurs. In the crystal, N—H...O as well as O—H...O and O—H...N hydrogen bonds (some of which are bifurcated) link the complex molecules into a three-dimensional network.

scholarly journals trans-Dibromidotetrakis(pyridine-κN)ruthenium(II)

2013 ◽  
Vol 69 (2) ◽  
pp. m105-m105 ◽  
Author(s):  
Xiu-Li Wu ◽  
Ru-Fei Ye ◽  
Ai-Quan Jia ◽  
Qun Chen ◽  
Qian-Feng Zhang
Keyword(s):  
Title Complex ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
A Site

The title complex, [RuBr2(C5H5N)4], contains two independent complex molecules in each of which the RuIIatom is located on a site of 222 symmetry and has a distorted octahedral coordination geometry with four pyridine N atoms and two Br atoms. The Br aroms aretrans-disposed as a result of symmetry.

scholarly journals Crystal structure of (2-amino-7-methyl-4-oxidopteridine-6-carboxylato-κ3O4,N5,O6)aqua(1,10-phenanthroline-κ2N,N′)zinc trihydrate

2015 ◽  
Vol 71 (9) ◽  
pp. m162-m163
Author(s):  
Siddhartha S. Baisya ◽  
Baidyanath Ghosh ◽  
Parag S. Roy
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Carboxylate Ligand ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnIIatom. The pterin ligand forms two chelate rings. The phen and pterin ring systems are nearly perpendicular [dihedral angle = 85.16 (5)°]. Classical N—H...O, O—H...N and O—H...O hydrogen bonds and weak C—H...O hydrogen bonds link the complex molecules and lattice water molecules into a three-dimensional network. π–π stacking contacts are observed as well, with centroid-to-centroid distances of 3.5679 (14), 3.7004 (14), 3.6641 (15), 3.6974 (13) and 3.3412 (12) Å.

Dichloro(ethanol-κO){(E)-1-[1-(2-pyridyl)ethylidene]thiosemicarbazonato-κ3 N,N′,S}indium(III)

2007 ◽  
Vol 63 (3) ◽  
pp. m845-m846 ◽  
Author(s):  
Ying-Ju Fan ◽  
Le Wang ◽  
Jian-Ping Ma ◽  
Zhong-Xi Sun
Keyword(s):  
Title Complex ◽  
Enol Form ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Ethanol Molecule ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Cl Atoms

Reaction of indium(III) chloride with (E)-1-[1-(2-pyridyl)ethylidene]thiosemicarbazide afforded the title complex, [In(C8H9N4S)Cl2(C2H5OH)]. The ligand is in the enol form coordinating to the InIII atom through one S atom and two N atoms. The InIII atom is further coordinated by two Cl atoms and an ethanol molecule to complete a distorted octahedral coordination geometry.

scholarly journals trans-Bis(nitrato-κO)tetrakis(1-vinyl-1H-imidazole-κN3)copper(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1045-m1045 ◽  
Author(s):  
Fatih Şen ◽  
Ramazan Şahin ◽  
Ömer Andaç ◽  
Murat Taş
Keyword(s):  
Equatorial Plane ◽  
Title Compound ◽  
Nitrate Anion ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Π Interactions ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Jahn Teller

In the title compound, [Cu(NO3)2(C5H6N2)4], the CuIIion is located on an inversion centre. It features a Jahn–Teller-distorted octahedral coordination geometry, defined by four N atoms of four 1-vinylimidazole ligands in the equatorial plane and two nitrate O atoms in the axial positions. The nitrate anion is disordered over two sets of sites in a 0.801 (6):0.199 (6) ratio. In the crystal, the complex molecules are linked by weak intermolecular C—H...O and C—H...π interactions.

scholarly journals catena-Poly[[(2,2′-bipyridine-κ2 N,N′)manganese(II)]-di-μ-bromido]

IUCrData ◽  
2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Title Complex ◽  
Coordination Geometry ◽  
One Dimensional ◽  
Axis Direction ◽  
Π Interactions ◽  
Twofold Axis ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Axis Of Symmetry

In the polymeric title complex, [MnBr2(C10H8N2)] n , the MnII ion, situated on a twofold axis of symmetry, is six-coordinated in a distorted octahedral coordination geometry defined by two N atoms from the chelating 2,2′-bipyridine ligand and four bridging Br− anions. The crystal reveals a one-dimensional Br-bridged chain along the c-axis direction with a zigzag topology. In the crystals, contacts between chains include π–π interactions between pyridyl rings [inter-centroid separation = 4.082 (1) Å]

scholarly journals Diaquabis[4-(dimethylamino)pyridine-κN 1]bis[2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)acetato-κO 1]cobalt(II)

IUCrData ◽  
2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Naouel Makouf ◽  
Aziza Chouiter ◽  
Henia Bouzidi Mousser ◽  
Amel Djedouani ◽  
Solenne Fleutot ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Supramolecular Structure ◽  
Title Complex ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Coordination Water

In the mononuclear title complex, [Co(C10H6NO4)2(C7H10N2)2(H2O)2], the CoII ion is located on an inversion centre and has a distorted octahedral coordination geometry of type CoN2O4 by two N atoms from the two 4-(dimethylamino)pyridine (DMAP) ligands, two carboxylate O atoms from the two deprotonated N-phthaloylglycine (Nphgly) ligands [systematic name: 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)acetate] and two coordination water molecules. In the crystal, O—H...O, C—H...O hydrogen bonds and π–π stacking interactions link the molecules into the supramolecular structure.

catena-Poly[[(di-2-pyridylamine-κ2 N,N′)copper(II)]-μ-benzene-1,4-dicarboxylato-κ4 O,O′:O′′,O′′′]

2006 ◽  
Vol 62 (5) ◽  
pp. m1079-m1080
Author(s):  
E Yang ◽  
Yi Zheng ◽  
Gu-Yong Chen
Keyword(s):  
Title Complex ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Polymeric Complex ◽  
Distorted Octahedral Coordination ◽  
Π Stacking ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the title complex, [Cu(C8H4O4)(C10H9N3)] n , the benzene-1,4-dicarboxylate dianions bridge the CuII atoms to form polymeric complex chains. The CuII atom has a distorted octahedral coordination geometry. The centroid-to-centroid separation of 3.932 (2) Å indicates π–π stacking between nearly parallel pyridine rings.

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