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.

scholarly journals Aqua[2,2′-(propane-1,3-diyl)bis(5-carboxy-1H-imidazole-4-carboxylato)-κ4N3,O4:N3′,O4′](pyridine-κN)cobalt(II)–4,4′-bipyridine (1/1)

2012 ◽  
Vol 68 (8) ◽  
pp. m1109-m1110
Author(s):  
Wei Liu ◽  
Xia Li
Keyword(s):  
Crystal Packing ◽  
Octahedral Geometry ◽  
Mirror Plane ◽  
Distorted Octahedral Geometry ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Bond Lengths ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Distorted Octahedral

In the title compound, [Co(C13H10N4O8)(C5H5N)(H2O)]·C10H8N2, the asymmetric unit comprises half a CoIIcomplex located on a mirror plane and half a cocrystallized molecule of 4,4′-bipyridine located on an inversion center. The CoIIion is six coordinate, with distorted octahedral geometry, ligated by two N atoms and two O atoms from a 2,2′-(propane-1,3-diyl)bis(5-carboxy-1H-imidazole-4-carboxylate) dianion, one N atom from a pyridine molecule and one coordinating water molecule. The Co—O bond lengths range from 2.076 (2) to 2.1441 (15) Å, while the Co—N bond lengths are 2.138 (3) and 2.1515 (17) Å. A two-dimensional network of N—H...O and O—H...N hydrogen bonds stabilizes the crystal packing. There are π–π interactions between the bipyridine and imidazole rings [centroid–centroid distance = 3.7694 (4) Å]. The propane-1,3-diyl group is disordered over two conformations, with refined occupancies of 0.755 (8) and 0.245 (8).

scholarly journals Bis(n-dodecylammonium) bis(chloranilato)diethanolcuprate(II)

2014 ◽  
Vol 70 (2) ◽  
pp. m63-m64 ◽  
Author(s):  
Akiko Himegi ◽  
Satoshi Kawata
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Two Dimensional ◽  
Inversion Center ◽  
Axis Direction ◽  
Compound C ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title compound, (C12H25NH3)2[Cu(C6Cl2O4)2(C2H5OH)2], the CuIIatom lies on a crystallographic inversion center and is coordinated in a distorted octahedral geometry by four O atoms of two chloranilate ligands and two O atoms of two ethanol molecules which aretransto each other in the axial positions. In the crystal, the CuIImononuclear dianions are linked by O—H...O hydrogen bonds into a tape along thea-axis direction. The tapes are linked through N—H...O hydrogen bonds between the dianion and then-dodecylammonium cation, forming a two-dimensional network parallel to theabplane.

scholarly journals trans-Diaquabis[(E)-3-(dimethylamino)-1-(2-pyridyl)prop-2-en-1-one-κ2N1,O]cobalt(II) dinitrate dihydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m633-m633 ◽  
Author(s):  
Jian-Hong Bi
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Inversion Center ◽  
Distorted Octahedral

In the title compound, [Co(C10H12N2O)2(H2O)2](NO3)2·2H2O, the CoIIion, located on an inversion center, istrans-coordinated by twoN,O-bidentate chelating (E)-3-(dimethylamino)-1-(2-pyridyl)prop-2-en-1-one ligands and by two water molecules in a slightly distorted octahedral geometry. Intermolecular O—H...O hydrogen bonds link the cations, anions and water molecules into layers parallel to theacplane. The crystal packing also exhibits weak intermolecular C—H...O hydrogen bonds.

scholarly journals Crystal structure of aqua[(E)-N′-(5-bromo-2-oxidobenzylidene-κO)benzohydrazidato-κ2O,N′]dioxidomolybdenum(VI) dimethylformamide monosolvate

2015 ◽  
Vol 71 (6) ◽  
pp. 702-705 ◽  
Author(s):  
Radhika Sudheer ◽  
M. Sithambaresan ◽  
N. R. Sajitha ◽  
E. Manoj ◽  
M. R. Prathapachandra Kurup
Keyword(s):  
Crystal Structure ◽  
Crystal Packing ◽  
Solvent Molecule ◽  
Membered Ring ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Ligand ◽  
Aromatic Rings ◽  
Centroid Distance ◽  
Distorted Octahedral

The title compound, [Mo(C14H9BrN2O2)O2(H2O)]·C3H7NO, has a distorted octahedral geometry around the Mo atom, with the two terminal oxide groups lyingcisto each other. The two aromatic rings present in the molecule are almost coplanar, forming a dihedral angle of 1.4 (2)°. The five-membered ring involving the metal atom is puckered, with an amplitudeQ= 0.358 (2) Å and ϕ = 204.1 (6)°. In the crystal, pairs of inversion-related molecules are linked by O—H...N hydrogen bonds. An O—H...O hydrogen bond connects the water ligand to the dimethylformamide solvent molecule. The crystal packing also features π–π [centroid–centroid distance of 3.688 (2) Å] and C—H...O interactions.

scholarly journals Poly[di-μ9-citrato-tetrasodiumzinc]

2013 ◽  
Vol 69 (12) ◽  
pp. m672-m672 ◽  
Author(s):  
Yu-Hong Ma ◽  
Hong-Wei Yang ◽  
Jing-Tuan Hao ◽  
Pi-Zhuang Ma ◽  
Ting Yao
Keyword(s):  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Pyramidal Geometry ◽  
Carboxylate Groups ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Square Pyramidal Geometry

In the title compound, [Na4Zn(C6H5O7)2]n, the ZnIIion lies on an inversion center and is coordinated by six O atoms from two citrate ligands, forming a distorted octahedral geometry. There are two crystallographically independent Na+cations in the asymmetric unit. One Na+cation exhibits a distorted square-pyramidal geometry defined by five O atoms from four citrate ligands. The other Na+cation is surrounded by six O atoms from five citrate ligands in a distorted octahedral geometry. The Na+cations are bridged by citrate carboxylate groups, forming a layer parallel to (100). The layers are further assembled into a three-dimensional network with the [Zn(citrate)2]4−building units as `pillars'; O—H...O hydrogen bonds also stabilize the structure.

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[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 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 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 Crystal structure and Hirshfeld surface analysis of bis(benzoato-κ2 O,O′)[bis(pyridin-2-yl-κN)amine]nickel(II)

2019 ◽  
Vol 75 (9) ◽  
pp. 1301-1305
Author(s):  
Phichitra Phiokliang ◽  
Phakamat Promwit ◽  
Kittipong Chainok ◽  
Nanthawat Wannarit
Keyword(s):  
Surface Analysis ◽  
Crystal Packing ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Distorted Octahedral Geometry ◽  
Monoclinic Space Group ◽  
Complex Molecules ◽  
One Dimensional ◽  
Centroid Distance ◽  
Distorted Octahedral

A new mononuclear NiII complex with bis(pyridin-2-yl)amine (dpyam) and benzoate (benz), [Ni(C7H5O2)2(C10H9N3)], crystallizes in the monoclinic space group P21/c. The NiII ion adopts a cis-distorted octahedral geometry with an [NiN2O4] chromophore. In the crystal, the complex molecules are linked together into a one-dimensional chain by symmetry-related π–π stacking interactions [centroid-to-centroid distance = 3.7257 (17) Å], along with N—H...O and C—H...O hydrogen bonds. The crystal packing is further stabilized by C—H...π interactions, which were investigated by Hirshfeld surface analysis.

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