scholarly journals Bis[2-(2-hydroxymethyl)pyridine-κ2N,O](pivalato-κO)copper(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1055-m1055 ◽  
Author(s):  
M. Mobin Shaikh ◽  
Veenu Mishra ◽  
Priti Ram ◽  
Anil Birla
Keyword(s):  
Hydrogen Bond ◽  
Crystal Packing ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Pyridine Ligands ◽  
Hydrogen Bond Interactions ◽  
Distorted Octahedral

The structure of the centrosymmetric title complex, [Cu(C5H9O2)2(C6H7NO)2], has the CuIIatom on a centre of inversion. The CuIIatom is six-coordinate with a distorted octahedral geometry, defined by the N and O atoms of the chelating 2-(2-hydroxymethyl)pyridine ligands and two carboxylate O atoms from two monodentate pivalate ions. The crystal packing is stabilized by intermolecular C—H...O and intramolecular O—H...O hydrogen-bond interactions.

scholarly journals cis-Chloridobis(4,4′-dimethyl-2,2′-bipyridine)nitrosylruthenium(II) bis(hexafluorophosphate)

IUCrData ◽  
2017 ◽  
Vol 2 (7) ◽  
Author(s):  
Hasan Shamran Mohammed ◽  
Marine Tassé ◽  
Isabelle Malfant ◽  
Laure Vendier
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Chloride Ion ◽  
Octahedral Geometry ◽  
Title Complex ◽  
The Other ◽  
Distorted Octahedral Geometry ◽  
Rotation Axes ◽  
Distorted Octahedral

In the cation of the title complex, [RuCl(NO)(C12H12N2)2](PF6)2, the central RuII ion is sixfold coordinated by a chloride ion and a nitrosyl ligand, which are cis to one another, and by four N atoms of two 4,4′-dimethyl-2,2′-bipyridine ligands, in a slightly distorted octahedral geometry. One of the PF6 − anions is located in a general position, while the other is composed of two half PF6 − anions located on twofold rotation axes. The crystal packing is dominated by C—H...F hydrogen bonds, leading to the formation of a three-dimensional supramolecular structure. There are also C—H...Cl hydrogen bonds present.

Bis[(3-hydroxy-2-naphthyl)(2-pyridylmethylenehydrazono)methanolato]nickel(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2667-m2667 ◽  
Author(s):  
Wenjun Kang ◽  
Shizhu Sun ◽  
Dacheng Li ◽  
Daqi Wang ◽  
Jianmin Dou
Keyword(s):  
Hydrogen Bonds ◽  
Molecular Conformation ◽  
Crystal Packing ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Distorted Octahedral

In the title complex, [Ni(C17H12N3O2)2], the NiII ion is coordinated by two O [Ni—O = 2.066 (3) and 2.068 (3) Å] and four N [Ni—N = 1.982 (3)–2.120 (3)Å] atoms in a distorted octahedral geometry. Two intramolecular O—H...N hydrogen bonds contribute to the molecular conformation. Weak intermolecular C—H...O hydrogen bonds stabilize the crystal packing.

trans-Bis(ethylenediamine)bis(trifluoroacetato)copper(II)

2007 ◽  
Vol 63 (3) ◽  
pp. m658-m659 ◽  
Author(s):  
Elena V. Karpova ◽  
Maxim A. Zakharov ◽  
Sergey I. Gutnikov ◽  
Alexandr I. Boltalin
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Packing ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Distorted Octahedral

The title complex, [Cu(H2NCH2CH2NH2)2(CF3COO)2], possesses a crystallographically imposed centre of symmetry. The Cu(II) atom is coordinated by four N atoms [Cu—N 1.985 (2), 2.015 (2) Å] from two chelate ethylenediamine ligands and two O atoms [Cu—O 2.579 (2) Å] from two trifluoroacetate anions in a distorted octahedral geometry. The crystal packing is stabilized by weak intermolecular N—H...O hydrogen bonds.

scholarly journals Pentaaqua(1H-benzimidazole-5,6-dicarboxylato-κN3)cobalt(II) pentahydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m702-m702 ◽  
Author(s):  
Wen-Dong Song ◽  
Hao Wang ◽  
Shi-Jie Li ◽  
Pei-Wen Qin ◽  
Shi-Wei Hu
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Organic Ligand ◽  
Octahedral Geometry ◽  
Mononuclear Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral

In the title mononuclear complex, [Co(C9H4N2O4)(H2O)5]·5H2O, the CoIIatom exhibits a distorted octahedral geometry involving an N atom of a 1H-benzimidazole-5,6-dicarboxylate ligand and five water O atoms. A supramolecular network is generated through intermolecular O—H...O hydrogen-bonding interactions involving the coordinated and uncoordinated water molecules and the carboxyl O atoms of the organic ligand. An intermolecular N—H...O hydrogen bond is also observed.

scholarly journals Crystal structure of a mononuclear RuIIcomplex with a back-to-back terpyridine ligand: [RuCl(bpy)(tpy–tpy)]+

2015 ◽  
Vol 71 (9) ◽  
pp. 1017-1021 ◽  
Author(s):  
Francisca N. Rein ◽  
Weizhong Chen ◽  
Brian L. Scott ◽  
Reginaldo C. Rocha
Keyword(s):  
Crystal Structure ◽  
Crystal Packing ◽  
Bidentate Ligand ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Stacking Interactions ◽  
Bite Angle ◽  
Distorted Octahedral ◽  
The Mean

We report the structural characterization of [6′,6′′-bis(pyridin-2-yl)-2,2′:4′,4′′:2′′,2′′′-quaterpyridine](2,2′-bipyridine)chloridoruthenium(II) hexafluoridophosphate, [RuCl(C10H8N2)(C30H20N6)]PF6, which contains the bidentate ligand 2,2′-bipyridine (bpy) and the tridendate ligand 6′,6′′-bis(pyridin-2-yl)-2,2′:4′,4′′:2′′,2′′′-quaterpyridine (tpy–tpy). The [RuCl(bpy)(tpy–tpy)]+monocation has a distorted octahedral geometry at the central RuIIion due to the restricted bite angle [159.32 (16)°] of the tridendate ligand. The Ru-bound tpy and bpy moieties are nearly planar and essentially perpendicular to each other with a dihedral angle of 89.78 (11)° between the least-squares planes. The lengths of the two Ru—N bonds for bpy are 2.028 (4) and 2.075 (4) Å, with the shorter bond being opposite to Ru—Cl. For tpy–tpy, the mean Ru—N distance involving the outer N atomstransto each other is 2.053 (8) Å, whereas the length of the much shorter bond involving the central N atom is 1.936 (4) Å. The Ru—Cl distance is 2.3982 (16) Å. The free uncoordinated moiety of tpy–tpy adopts atrans,transconformation about the interannular C—C bonds, with adjacent pyridyl rings being only approximately coplanar. The crystal packing shows significant π–π stacking interactions based on tpy–tpy. The crystal structure reported here is the first for a tpy–tpy complex of ruthenium.

scholarly journals Bis[tetrakis(pyridin-2-yl)methane-κ3N,N′,N′′]cobalt(II) tetrakis(thiocyanato-κN)cobaltate(II) methanol monosolvate

2014 ◽  
Vol 70 (3) ◽  
pp. m96-m97 ◽  
Author(s):  
Yuya Tsunezumi ◽  
Kouzou Matsumoto ◽  
Shinya Hayami ◽  
Akira Fuyuhiro ◽  
Satoshi Kawata
Keyword(s):  
Complex Anion ◽  
Complex Cation ◽  
Solvent Molecule ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Weak Hydrogen Bond ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Distorted Octahedral

The title complex, [Co(C21H16N4)2][Co(NCS)4]·CH3OH, consists of one [Co{C(py)4}2]2+complex cation [C(py)4= tetrakis(pyridin-2-yl)methane], one [Co(NCS)4]2−complex anion and a methanol solvent molecule. In the cation, the CoIIatom is coordinated by six N atoms of two C(py)4ligands in a distorted octahedral geometry. In the anion, the CoIIatom is coordinated by the N atoms of four NCS−ligands in a distorted tetrahedral geometry. The methanol molecule is disordered and was modelled over three orientations (occupancies 0.8:0.1:0.1). There are two weak hydrogen-bond-like interactions between the methanol solvent molecule and NCS−ligands of the anion [O...S = 3.283 (3) and 3.170 (2) Å].

scholarly journals Diaquabis(2,2′-bi-1H-imidazole)manganese(II) benzene-1,4-dicarboxylate

2012 ◽  
Vol 68 (6) ◽  
pp. m829-m829
Author(s):  
Lining Yang ◽  
Yanxiang Zhi ◽  
Jiahui Hei ◽  
Yanqing Miao
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Centroid Distance ◽  
Distorted Octahedral

The asymmetric unit of the title compound, [Mn(C6H6N4)2(H2O)2](C8H4O4), contains one-half each of the centrosymmetric cation and anion. The MnII atom is coordinated by four N atoms [Mn—N = 2.2168 (14) and 2.2407 (14) Å] from two 2,2′-biimidazole ligands and two water molecules [Mn—O = 2.2521 (14) Å] in a distorted octahedral geometry. Intermolecular N—H...O and O—H...O hydrogen bonds consolidate the crystal packing, which also exhibits π–π interactions between five-membered rings, with a centroid–centroid distance of 3.409 (2) Å.

scholarly journals fac-[1,2-Bis(pyridin-4-yl)ethane-κN]tricarbonyl(1,10-phenanthroline-κ2N,N′)rhenium(I) hexafluoridophosphate acetonitrile monosolvate

2014 ◽  
Vol 70 (7) ◽  
pp. m278-m279 ◽  
Author(s):  
Silvana Guilardi ◽  
Antonio Otavio Toledo Patrocinio ◽  
Sinval Fernandes de Sousa ◽  
Javier Ellena
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Packing ◽  
Solvent Molecule ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Carbonyl Ligands ◽  
Distorted Octahedral ◽  
Phenanthroline Ligand ◽  
Solvent Molecules

The asymmetric unit of the title compound, [Re(C12H8N2)(C12H12N2)(CO)3]PF6.·CH3CN, contains one cation, one hexafluoridophosphate anion and one acetonitrile solvent molecule. The ReIion is coordinated by two N atoms from the 1,10-phenanthroline ligand and one N atom from the 1,2-bis(pyridin-4-yl)ethane ligand [mean Re—N = 2.191 (15) Å] and by three carbonyl ligands [mean Re—C = 1.926 (3) Å] in a distorted octahedral geometry. The electrostatic forces and weak C—H...F(O) hydrogen bonds pack cations and anions into the crystal with voids of 82 Å3, which are filled by solvent molecules. The crystal packing exhibits short intermolecular O...O distance of 2.795 (5) Å between two cations related by inversion.

scholarly journals Poly[[tetraaquabis(μ3-5-carboxybenzene-1,2,4-tricarboxylato)tricadmium] tetrahydrate]

2012 ◽  
Vol 68 (6) ◽  
pp. m801-m802
Author(s):  
Yong-Yan Jia ◽  
Xin-Nian Xie ◽  
Huai-Xia Yang
Keyword(s):  
Water Molecule ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Dimensional Structure ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Three Dimensional Structure ◽  
The Third ◽  
Distorted Octahedral

There are three independent CdII ions in the title complex, {[Cd3(C10H3O8)2(H2O)4]·4H2O} n , one of which is coordinated by four O atoms from three 5-carboxybenzene-1,2,4-tricarboxylate ligands and by two water molecules in a distorted octahedral geometry. The second CdII ion is coordinated by five O atoms from four 5-carboxybenzene-1,2,4-tricarboxylate ligands and by one water molecule also in a distorted octahedral geometry while the third CdII ion is coordinated by five O atoms from three 5-carboxybenzene-1,2,4-tricarboxylate ligands and by one water molecule in a highly distorted octahedral geometry. The 5-carboxybenzene-1,2,4-tricarboxylate ligands bridge the CdII ions, resulting in the formation of a three-dimensional structure. Intra- and intermolecular O—H...O hydrogen bonds are present throughout the three-dimensional structure.

scholarly journals Bis(propane-1,3-diamine)disaccharinatonickel(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m425-m426 ◽  
Author(s):  
Gökhan Kaştaş ◽  
Can Kocabıyık
Keyword(s):  
Metal Ion ◽  
Crystal Packing ◽  
Chair Conformation ◽  
Membered Ring ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Inversion Center ◽  
One Dimensional ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title complex, [Ni(C7H4NO3S)2(C3H10N2)2] or [Ni(sac)2(pen)2] (sac = saccharinate or 1,1,3-trioxo-2,3-dihydro-1λ6,2-benzothiazol-2-ide and pen = propane-1,3-diamine), the NiIIion sits on an inversion center, being coordinated by two N atoms of the sac ligands, which occupytranspositions, and four N atoms of the bidentate pen ligands to define a distorted octahedral geometry. The pen ligands chelate the metal ion, forming a six-membered ring which adopts a half-chair conformation, while the sac ligands adopt the most common coordination mode. The crystal packing is stabilized by N—H...O hydrogen bonds, which form a one-dimensional network along [010]. It is also supported by an N—H...S hydrogen bond between the amine group of the pen ligand and the sulfonyl group of the sac ligand.

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