scholarly journals Crystal structure of a CoIIcoordination polymer with a dipyridyl ligand:catena-poly[[bis(nitrato-κ2O,O′)cobalt(II)]-μ-N-(pyridin-2-ylmethyl)pyridine-3-amine-κ3N,N′:N′′]

2017 ◽  
Vol 73 (11) ◽  
pp. 1696-1699
Author(s):  
Suk-Hee Moon ◽  
Youngjin Kang ◽  
Ki-Min Park
Keyword(s):  
Hydrogen Bonds ◽  
Basal Plane ◽  
Cobalt Atom ◽  
Pentagonal Bipyramid ◽  
Zigzag Chain ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Centroid Distance ◽  
Nitrate Anions

The asymmetric unit of the title compound, [Co(NO3)2L]n,L=N-(pyridine-2-ylmethyl)pyridine-3-amine (C11H11N3), contains one CoIIcentre, two nitrate anions and oneLligand in which the Cpy—C—N—Cpymoiety adopts atransconformation with a torsion angle of −173.1 (3) Å. The coordination geometry of the CoIIatom is a distorted pentagonal bipyramid. One amine N atom from theLligand and four O atoms from two η2-nitrato ligands form the basal plane and two pyridyl N atoms from two symmetry-relatedLligands occupy the apical positions [N—Co—N = 171.86 (11)°]. The displacement of the central CoIIatom from the basal plane (r.m.s. deviation = 0.085 Å) is 0.1491 (12) Å. Each bidentate nitrate group is bonded asymmetrically to the cobalt atom in an chelating fashion. The CoIIions are linked by theLligands to form a zigzag chain propagating along thec-axis direction. Within the zigzag chain, C—H...O hydrogen bonds between the ligands and the nitrate anions are observed. Adjacent zigzag chains are connectedviaintermolecular π–π stacking interactions [centroid-to-centroid distance = 3.844 (2) Å] between the pyridine rings together with N/C—H...O hydrogen bonds.

scholarly journals Crystal structure of a looped-chain CoIIcoordination polymer:catena-poly[[bis(nitrato-κO)cobalt(II)]bis[μ-bis(pyridin-3-ylmethyl)sulfane-κ2N:N′]]

2017 ◽  
Vol 73 (11) ◽  
pp. 1700-1703 ◽  
Author(s):  
Suk-Hee Moon ◽  
Joobeom Seo ◽  
Ki-Min Park
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Distorted Octahedral Geometry ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Coordination Sites ◽  
Centroid Distance ◽  
Distorted Octahedral ◽  
Ring Centroid ◽  
Nitrate Anions

The asymmetric unit of the title compound, [Co(NO3)2(C12H12N2S)2]n, contains a bis(pyridin-3-ylmethyl)sulfane (L) ligand, an NO3−anion and half a CoIIcation, which lies on an inversion centre. The CoIIcation is six-coordinated, being bound to four pyridine N atoms from four symmetry-relatedLligands. The remaining coordination sites are occupied by two O atoms from two symmetry-related nitrate anions in a monodentate manner. Thus, the CoIIcentre adopts a distorted octahedral geometry. Two symmetry-relatedLligands are connected by two symmetry-related CoIIcations, forming a 20-membered cyclic dimer, in which the CoIIatoms are separated by 10.2922 (7) Å. The cyclic dimers are connected to each other by sharing CoIIatoms, giving rise to the formation of an infinite looped chain propagating along the [101] direction. Intermolecular C—H...π (H...ring centroid = 2.89 Å) interactions between one pair of correspondingLligands and C—H...O hydrogen bonds between theLligands and the nitrate anions occur in the looped chain. In the crystal, adjacent looped chains are connected by intermolecular π–π stacking interactions [centroid-to-centroid distance = 3.8859 (14) Å] and C—H...π hydrogen bonds (H...ring centroid = 2.65 Å), leading to the formation of layers parallel to (101). These layers are further connected through C—H...O hydrogen bonds between the layers, resulting in the formation of a three-dimensional supramolecular architecture.

scholarly journals Crystal structure of a twisted-ribbon type double-stranded AgIcoordination polymer:catena-poly[[silver(I)-μ3-bis(pyridin-3-ylmethyl)sulfane-κ3N:N′:S] nitrate]

2017 ◽  
Vol 73 (10) ◽  
pp. 1587-1589 ◽  
Author(s):  
Suk-Hee Moon ◽  
Youngjin Kang ◽  
Ki-Min Park
Keyword(s):  
Three Dimensional ◽  
Polymer Chains ◽  
Zigzag Chain ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Parallel Chain ◽  
Π Stacking ◽  
Centroid Distance ◽  
Nitrate Anions ◽  
Coordination Plane

The asymmetric unit in the title compound, {[Ag(C12H12N2S)]·NO3}nor {[AgL]·NO3}n,L= bis(pyridin-3-ylmethyl)sulfane, consists of an AgIcation bound to a pyridine N atom of anLligand and an NO3−anion that is disordered over two orientations in an 0.570 (17):0.430 (17) occupancy ratio. Each AgIcation is coordinated by two pyridine N atoms from adjacentLligands to form an infinite zigzag chain along [110]. In addition, each AgIion binds to an S donor from a thirdLligand in an adjacent parallel chain, resulting in the formation of a twisted-ribbon type of double-stranded chain propagating along the [110] or [1-10] directions. The AgIatom is displaced out of the trigonal N2S coordination plane by 0.371 (3) Å because of interactions between the AgIcation and O atoms of the disordered nitrate anions. Intermolecular π–π stacking interactions [centroid-to-centroid distance = 3.824 (3) Å] occur between one pair of corresponding pyridine rings in the double-stranded chain. In the crystal, the double-stranded chains are alternately stacked along thecaxis with alternate stacks linked by intermolecular π–π stacking interactions [centroid-to-centroid distance = 3.849 (3) Å], generating a three-dimensional supramolecular architecture. Weak intermolecular C—H...O hydrogen bonds between the polymer chains and the O atoms of the nitrate anions also occur.

scholarly journals catena-Poly[[[(2,2′-bipyridine-κ2N,N′)manganese(II)]-μ-(2,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,4-diolato)-κ4O1,O6:O3,O4] ethanol disolvate]

2013 ◽  
Vol 69 (2) ◽  
pp. m119-m120 ◽  
Author(s):  
Yuji Nishimura ◽  
Akiko Himegi ◽  
Akira Fuyuhiro ◽  
Shinya Hayami ◽  
Satoshi Kawata
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Zigzag Chain ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Bridging Ligand ◽  
Π Stacking ◽  
Centroid Distance ◽  
Solvent Molecules ◽  
Hydroxy Groups

The asymmetric unit of the title coordination polymer, {[Mn(C6Cl2O4)(C10H8N2)]·2C2H5OH}n, consists of one MnIIion, one 2,2′-bipyridine (bpy) ligand, one chloranilate (CA2−) ligand and two ethanol solvent molecules. The MnIIion is octahedrally coordinated by two N atoms of one bpy ligand and four O atoms of two chloranilate ions. The chloranilate ion serves as a bridging ligand between the MnIIions, leading to an infinite zigzag chain along [101]. π–π stacking interactions [centroid–centroid distance = 4.098 (2) Å] is observed between the pyridine rings of adjacent chains. The ethanol molecules act as accepters as well as donors for O—H...O hydrogen bonds, and form a hydrogen-bonded chain along theaaxis. The H atoms of the hydroxy groups of the two independent ethanol molecules are each disordered over two sites with equal occupancies.

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].

scholarly journals trans-Bis(nitrato-κO)bis(1,10-phenanthroline-κ2N,N′)manganese(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1026-m1026 ◽  
Author(s):  
Watcharin Saphu ◽  
Songwuit Chanthee ◽  
Kittipong Chainok ◽  
David J. Harding ◽  
Chaveng Pakawatchai
Keyword(s):  
Hydrogen Bonds ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Nitrate Anion ◽  
Stacking Interactions ◽  
Octahedral Environment ◽  
Centroid Distance ◽  
Nitrate Anions ◽  
Phenanthroline Ligands

In the title compound, [Mn(NO3)2(C12H8N2)2], the MnIIatom lies on a twofold rotation axis, and is six-coordinated in a distortedtrans-N4O2octahedral environment by four N atoms from two 1,10-phenanthroline ligands and two O atoms from two nitrate anions. The nitrate anion is disordered about a twofold rotation axis with fixed occupancy factors of 0.5. In the crystal, molecules are linked by weak C—H...O hydrogen bonds and π–π stacking interactions [centroid–centroid distance = 4.088 (5) Å] into a three-dimensional supramolecular network.

scholarly journals N-(6-Chloro-1-methyl-1H-imidazo[4,5-c]pyridin-4-yl)benzenesulfonamide

2014 ◽  
Vol 70 (4) ◽  
pp. o445-o445
Author(s):  
Venkatesh B. Devaru ◽  
K. S. Katagi ◽  
O. Kotresh ◽  
H. K. Arunkashi ◽  
H. C. Devarajegowda
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Phenyl Ring ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

The asymmetric unit of the title compound, C13H11ClN4O2S, contains two molecules (AandB), in which the dihedral angles between the 1H-imidazo[4,5-c]pyridine system and terminal phenyl ring are 80.83 (10) and 62.34 (1)°. In the crystal,A–Bdimers are linked by pairs of N—H...N hydrogen bonds, which generateR22(10) loops. The dimers are linked by C—H...O and C—H...Cl interactions, generating a three-dimensional network. Aromatic π–π stacking interactions [shortest centroid–centroid distance = 3.5211 (12) Å] are also observed.

scholarly journals N-(4-Methoxyphenyl)-6-methyl-2-phenyl-5-{[4-(trifluoromethyl)anilino]methyl}pyrimidin-4-amine

2013 ◽  
Vol 69 (12) ◽  
pp. o1831-o1832
Author(s):  
Jerzy Cieplik ◽  
Janusz Pluta ◽  
Iwona Bryndal ◽  
Tadeusz Lis
Keyword(s):  
Hydrogen Bonds ◽  
Pyrimidine Ring ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Compound C ◽  
Centroid Distance ◽  
Independent Molecules ◽  
Adjacent Molecule ◽  
Ring Motif

The title compound, C26H23F3N4O, crystallizes with two symmetry-independent molecules in the asymmetric unit, denotedAandB, which differ mainly in the rotation of the methoxyphenyl ring. The –CF3group of moleculeBis disordered by rotation, with the F atoms split over two sets of sites; the occupancy factor for the major component is 0.853 (4). The dihedral angles between the pyrimidine ring and the attached phenyl, methoxyphenyl and trifluoromethylphenyl rings are 8.1 (2), 37.5 (2) and 70.7 (2)°, respectively, in moleculeA, and 9.3 (2), 5.3 (2) and 79.7 (2)° in moleculeB. An intramolecular N—H...N hydrogen bond occurs in each molecule. In the crystal, two crystallographically independent molecules associate into a dimerviaa pair of N—H...N hydrogen bonds, with a resultingR22(12) ring motif and π–π stacking interactions [centroid–centroid distance = 3.517 (4) Å] between the pyrimidine rings. For theAmolecules, there are intermolecular C—H...O hydrogen bonds between an aryl C atom of methoxyphenyl ring and a methoxy O atom of an adjacent molecule. A similar interaction is lacking in theBmolecules.

scholarly journals 1,2-Bis(pyridin-4-yl)diazene–3,4,5-trihydroxybenzoic acid–methanol (3/2/2)

2012 ◽  
Vol 68 (8) ◽  
pp. o2436-o2436
Author(s):  
Elena Rusu ◽  
Sergiu Shova ◽  
Gheorghe Rusu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Molecular Crystal ◽  
Molar Ratio ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Extended System ◽  
Centroid Distance

The title compound, 3C10H8N4·2C7H6O5·2CH4O, has a molecular crystal structure which results from the cocrystallization of gallic acid (GA), 4,4′-azodipyridine (AzPy) and methanol in a 2:3:2 molar ratio. The asymmetric unit comprises one molecule each of GA, AzPy and methanol in general positions and half a molecule of AzPy as this is located about a centre of inversion. In the crystal, all the components of the structure are associatedviathe extended system of hydrogen bonds (O—H...O and O—H...N) and π–π stacking interactions [centroid–centroid distance = 3.637 (3) Å] into two-dimensional supramolecular layers which are packed parallel to the [101] plane. The shortest perpendicular distance and the slippage between aromatic groups are 3.395 (3) and 2.152 (3) Å, respectively. The AzPy molecules display atransconformation with respect to the azo groups.

scholarly journals Crystal structure of an AgIintercalation compound:catena-poly[[silver(I)-μ-N-(pyridin-3-ylmethyl)pyridin-3-amine-κ2N:N′] hexafluoridophosphate acetonitrile disolvate]

2017 ◽  
Vol 73 (10) ◽  
pp. 1542-1545
Author(s):  
Suk-Hee Moon ◽  
Youngjin Kang ◽  
Ki-Min Park
Keyword(s):  
Three Dimensional ◽  
Supramolecular Network ◽  
Zigzag Chain ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Centroid Distance ◽  
Solvent Molecules ◽  
F Ring ◽  
Ring Centroid ◽  
Linear Coordination

The asymmetric unit in the title compound, [Ag(C11H11N3)]PF6·2CH3CN or {[AgL]·PF6·2CH3CN}n,L=N-(pyridin-3-ylmethyl)pyridin-3-amine, comprises one AgIatom, oneLligand, two acetonitrile solvent molecules and one PF6−anion disordered over two orientations in a 0.567 (11):0.433 (11) ratio. Each AgIatom is coordinated by two pyridine N atoms from twoLligands in a slightly distorted linear coordination geometry [N—Ag—N = 170.55 (8)°]. EachLligand bridges two AgIions, resulting in the formation of a zigzag chain propagating along the [101] direction. In the crystal, Ag...Ag contacts [3.3023 (5) Å] and intermolecular π–π stacking interactions [centroid-to-centroid distance = 3.5922 (15) Å] between the pyridine rings link these chains into a corrugated layer parallel to the (\overline{1}01) plane. The layers are stacked with a separation of 10.4532 (5) Å, and acetonitrile solvent molecules and PF6−anions as guests are intercalated between the layers. The layers are connected through several N/C—H...F hydrogen bonds and P—F...π interactions [F...ring centroid = 3.241 (8) Å] between the layer and the intercalated guests and between the intercalated guests, forming a three-dimensional supramolecular network.

scholarly journals A one-dimensional HgIIcoordination polymer based on bis(pyridin-3-ylmethyl)sulfane

2017 ◽  
Vol 73 (12) ◽  
pp. 1871-1874
Author(s):  
Suk-Hee Moon ◽  
Youngjin Kang ◽  
Ki-Min Park
Keyword(s):  
Hydrogen Bonds ◽  
Central Atom ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Zigzag Chain ◽  
Asymmetric Unit ◽  
Tetrahedral Geometry ◽  
One Dimensional ◽  
Centroid Distance ◽  
The One

The reaction of mercury(II) chloride with bis(pyridin-3-ylmethyl)sulfane (L, C12H12N2S) in methanol afforded the title crystalline coordination polymercatena-poly[[dichloridomercury(II)]-μ-bis(pyridin-3-ylmethyl)sulfane-κ2N:N′], [HgCl2L]n. The asymmetric unit consists of one HgIIcation, oneLligand and two chloride anions. Each HgIIion is coordinated by two pyridine N atoms from separateLligands and two chloride anions. The metal adopts a highly distorted tetrahedral geometry, with bond angles about the central atom in the range 97.69 (12)–153.86 (7)°. EachLligand bridges two HgIIions, forming an infinite –(Hg–L)n– zigzag chain along thebaxis, with an Hg...Hg separation of 10.3997 (8) Å. In the crystal, adjacent chains are connected by intermolecular C—H...Cl hydrogen bonds, together with Hg—Cl...π interactions [chloride-to-centroid distance = 3.902 (3) Å], that form between a chloride anion and the one of the pyridine rings ofL, generating a two-dimensional layer extending parallel to (101). These layers are further linked by intermolecular C—H...π hydrogen bonds, forming a three-dimensional supramolecular network.

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