scholarly journals Diaquabis(2-iodobenzoato-κO)bis(nicotinamide-κN1)cobalt(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m521-m522 ◽  
Author(s):  
Ömür Aydın ◽  
Nagihan Çaylak Delibaş ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek
Keyword(s):  
Benzene Ring ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Carboxylate Group ◽  
Inversion Center ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Coordinated Water

In the title complex, [Co(C7H4IO2)2(C6H6N2O)2(H2O)2], the CoIIcation is located on an inversion center and is coordinated by two monodentate 2-iodobenzoate (IB) anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane around the CoIIcation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 22.3 (3)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 84.59 (13)°. Intramolecular O—H...O hydrogen bonding occurs between the carboxylate group and coordinated water molecule. In the crystal, N—H...O, O—H...O and weak C—H...O hydrogen bonds link the molecules into a three-dimensional supramolecular network.

scholarly journals Diaquabis(N,N-diethylnicotinamide-κN1)bis(4-formylbenzoato-κO1)zinc

2012 ◽  
Vol 68 (8) ◽  
pp. m1067-m1068 ◽  
Author(s):  
Mustafa Sertçelik ◽  
Nagihan Çaylak Delibaş ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek
Keyword(s):  
Benzene Ring ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Carboxylate Group ◽  
Inversion Center ◽  
Centroid Distance ◽  
Square Planar ◽  
Distorted Octahedral

In the title complex, [Zn(C8H5O3)2(C10H14N2O)2(H2O)2], the ZnIIcation is located on an inversion center and is coordinated by two 4-formylbenzoate anions, twoN,N-diethylnicotinamide (DENA) ligands and two water molecules. The four O atoms in the equatorial plane around the ZnIIcation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the DENA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 2.96 (11)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 79.26 (4)°. The coordinating water molecule links with the carboxylate groupviaan intramolecular O—H...O hydrogen bond. In the crystal, O—H...O and weak C—H...O hydrogen bonds link the molecules into a three-dimensional supramolecular network. A π–π contact between the parallel pyridine rings of adjacent molecules may further stabilize the crystal structure [centroid–centroid distance = 3.5654 (8) Å].

scholarly journals Diaquabis(4-formylbenzoato-κO1)bis(nicotinamide-κN1)cobalt(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1091-m1092 ◽  
Author(s):  
Mustafa Sertçelik ◽  
Nagihan Çaylak Delibaş ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek
Keyword(s):  
Dihedral Angle ◽  
Three Dimensional ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Carboxylate Group ◽  
Inversion Center ◽  
Centroid Distance ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Benzene Rings

In the title complex, [Co(C8H5O3)2(C6H6N2O)2(H2O)2], the CoIIcation is located on an inversion center and is coordinated by two 4-formylbenzoate (FB) anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane around the CoIIcation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 23.91 (9)°, while the pyridine and benzene rings are oriented at a dihedral angle of 88.84 (4)°. The coordinating water molecule links with the carboxylate groupviaan intramolecular O—H...O hydrogen bond. In the crystal, N—H...O, O—H...O and weak C—H...O hydrogen bonds link the molecules into a three-dimensional supramolecular network. π–π stacking between the parallel benzene rings of adjacent molecules [centroid–centroid distance = 3.8505 (8) Å] may further stabilize the structure. A weak C—H...π interaction also occurs in the crystal.

scholarly journals Diaquabis(4-formylbenzoato-κO1)bis(nicotinamide-κN1)zinc

2012 ◽  
Vol 68 (8) ◽  
pp. m1127-m1128 ◽  
Author(s):  
Mustafa Sertçelik ◽  
Nagihan Çaylak Delibaş ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek
Keyword(s):  
Benzene Ring ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Water Molecules ◽  
Carboxylate Group ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Benzene Rings

In the title complex, [Zn(C8H5O3)2(C6H6N2O)2(H2O)2], the ZnIIcation is located on an inversion center and is coordinated by two 4-formylbenzoate (FB) anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane around the ZnIIcation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 24.13 (8)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 88.52 (4)°. The coordinating water molecule links with the carboxylate groupviaan O—H...O hydrogen bond. In the crystal, N—H...O and O—H...O hydrogen bonds, and a weak C—H...π interaction link the molecules into a two-dimensional network parallel to (010). These networks are linkedviaC—H...O and π–π interactions between inversion-related benzene rings [centroid–centroid distance = 3.8483 (7) Å], forming a three-dimensional supramolecular structure.

scholarly journals Crystal structure ofcatena-poly[[[tetraaquairon(II)]-trans-μ-1,2-bis(pyridin-4-yl)ethene-κ2N:N′] bis(p-toluenesulfonate) methanol disolvate]

2017 ◽  
Vol 73 (12) ◽  
pp. 1977-1980
Author(s):  
Volodymyr M. Hiiuk ◽  
Diana D. Barakhty ◽  
Sergiu Shova ◽  
Ruslan A. Polunin ◽  
Il'ya A. Gural'skiy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Polymeric Complex ◽  
Distorted Octahedral ◽  
Polymeric Chains ◽  
Coordinated Water

In the title polymeric complex, {[Fe(C12H10N2)2(H2O)4](CH3C6H4SO3)2·2CH3OH}n, the FeIIcation, located on an inversion centre, is coordinated by four water molecules in the equatorial positions and two 1,2-bis(pyridin-4-yl)ethene molecules in the axial positions. This results in a distorted octahedral geometry for the [N2O4] coordination polyhedron. The 1,2-bis(pyridin-4-yl)ethene molecules bridge the FeIIcations, forming polymeric chains running along thea-axis direction. Stabilization of the crystal structure is provided by O—H...O hydrogen bonds; these are formed by coordinated water molecules as donors towards the O atoms of the methanol molecules and tosylate anions as acceptors of protons, leading to the formation of a three-dimensional supramolecular network. Weak C—H...O hydrogen bonds are also observed in the crystal.

Diaquabis(5-carboxy-2-methyl-1H-imidazole-4-carboxylato-κ2 N 3,O 4)cadmium(II)

2007 ◽  
Vol 63 (3) ◽  
pp. m753-m755 ◽  
Author(s):  
Xu-Liang Nie ◽  
Hui-Liang Wen ◽  
Zi-Sheng Wu ◽  
Da-Bo Liu ◽  
Chong-Bo Liu
Keyword(s):  
Hydrogen Bonds ◽  
Equatorial Plane ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Framework ◽  
Inversion Center ◽  
Distorted Octahedral ◽  
Coordinated Water

In the title compound, [Cd(C6H7N2O5)2], the Cd atom lies on an inversion center and has a slightly distorted octahedral geometry. The equatorial plane contains two bidentate 5-carboxy-2-methyl-1H-imidazole-4-carboxylate monoanionic ligands. Two coordinated water molecules occupy the axial sites. Intermolecular N—H...O hydrogen bonds link the molecules into chains, which are further connected by intermolecular O—H...O hydrogen bonds, resulting in a three-dimensional supramolecular framework.

scholarly journals 1:1 Co-crystal of 4,4′-(ethene-1,2-diyl)dipyridin-1-ium sulfate and hexaaquairon(II) sulfate monohydrate

2014 ◽  
Vol 70 (5) ◽  
pp. m169-m169
Author(s):  
Dan Yang ◽  
Fei-Lin Yang
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Double Salt ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Distorted Octahedral

In the title hydrated double salt, 4,4′-(ethene-1,2-diyl)dipyridin-1-ium hexaaquairon(II) bis(sulfate) monohydrate, (C12H12N2)[Fe(H2O)6](SO4)2·H2O, the FeIIcation is coordinated by six water molecules in a slightly distorted octahedral geometry; the two pyridine rings of the 4,4′-(ethene-1,2-diyl)dipyridin-1-ium cation are twisted to each other by a dihedral angle of 11.84 (10)°. In the crystal, the cations, sulfate anions and water molecules of crystallization are linked by O—H...O, N—H...O and weak C—H...O hydrogen bonds, forming a three-dimensional supramolecular network.

scholarly journals Crystal structure of diaquabis(N,N-diethylnicotinamide-κN1)bis(2,4,6-trimethylbenzoato-κO1)cobalt(II)

2016 ◽  
Vol 72 (4) ◽  
pp. 498-501
Author(s):  
Gülçin Şefiye Aşkın ◽  
Hacali Necefoğlu ◽  
Safiye Özkaya ◽  
Raziye Çatak Çelik ◽  
Tuncer Hökelek
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Cobalt Complex ◽  
Three Dimensional ◽  
Water Molecules ◽  
Dimensional Network ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Amide Carbonyl ◽  
Centrosymmetric Molecule

The centrosymmetric molecule in the monomeric title cobalt complex, [Co(C10H11O2)2(C10H14N2O)2(H2O)2], contains two water molecules, two 2,4,6-trimethylbenzoate (TMB) ligands and two diethylnicotinamide (DENA) ligands. All ligands coordinate to the CoIIatom in a monodentate fashion. The four O atoms around the CoIIatom form a slightly distorted square-planar arrangement, with the distorted octahedral coordination sphere completed by two pyridine N atoms of the DENA ligands. The dihedral angle between the planar carboxylate group and the adjacent benzene ring is 84.2 (4)°, while the benzene and pyridine rings are oriented at a dihedral angle of 38.87 (10)°. The water molecules exhibit both intramolecular (to the non-coordinating carboxylate O atom) and intermolecular (to the amide carbonyl O atom) O—H...O hydrogen bonds. The latter lead to the formation of layers parallel to (100), enclosingR44(32) ring motifs. These layers are further linkedviaweak C—H...O hydrogen bonds, resulting in a three-dimensional network. One of the two ethyl groups of the DENA ligand is disordered over two sets of sites with an occupancy ratio of 0.490 (13):0.510 (13).

scholarly journals Diaquabis(tetrazolo[1,5-a]pyridine-8-carboxylato-κ2N1,O)cobalt(II) dihydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m684-m684 ◽  
Author(s):  
Min Xue ◽  
Fu-Chen Liu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Inversion Center ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Carboxylate Anions ◽  
Distorted Octahedral

In the title compound, [Co(C6H3N4O2)2(H2O)2]·2H2O, the CoIIatom is located on an inversion center in a slightly distorted octahedral environment formed by the O atoms of two water molecules, and the N and O atoms of the chelating tetrazolo[1,5-a]pyridine-8-carboxylate anions. Hydrogen bonds of the O—H...O and O—H...N types result in a three-dimensional supramolecular network.

scholarly journals Crystal structure oftrans-diaquabis(4-cyanobenzoato-κO)bis(N,N-diethylnicotinamide-κN)cadmium

2016 ◽  
Vol 72 (12) ◽  
pp. 1827-1829 ◽  
Author(s):  
Nurcan Akduran ◽  
Mustafa Sertçelik ◽  
Ömer Aydoğdu ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek
Keyword(s):  
Dihedral Angle ◽  
Water Molecules ◽  
Cadmium Complex ◽  
Carboxylate Group ◽  
Distorted Octahedral Coordination ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Amide Carbonyl ◽  
Supramolecular Chains ◽  
Ring Motif

The mononuclear title cadmium complex, [Cd(C10H14N2O)2(C8H4NO2)2(H2O)2], is centrosymmetric and contains two water molecules, two 4-cyanobenzoate (CB) ligands and two diethylnicotinamide (DENA) ligands. All the ligands are coordinated to the CdIIatom in a monodentate mode. The four nearest O atoms around the CdIIatom form a slightly distorted square-planar arrangement, with the distorted octahedral coordination sphere being completed by the two pyridine N atoms of the DENA ligands at distances of 2.3336 (13) Å. The dihedral angle between the carboxylate group and the adjacent benzene ring is 8.75 (16)°, while the benzene and pyridine rings are oriented at a dihedral angle of 57.83 (5)°. The water molecules exhibit both intramolecular [to the non-coordinating carboxylate O atom, enclosing anS(6) hydrogen-bonding motif, where O...O = 2.670 (2) Å] and intermolecular [to the amide carbonyl O atom, enclosing anR22(16) ring motif, where O...O = 2.781 (2) Å] O—H...O hydrogen bonds. The latter lead to the formation of supramolecular chains propagating along [110].

scholarly journals Crystal structure oftrans-diaquabis(4-cyanobenzoato-κO)bis(nicotinamide-κN1)cobalt(II)

2015 ◽  
Vol 71 (5) ◽  
pp. 561-563 ◽  
Author(s):  
Gülçin Şefiye Aşkın ◽  
Hacali Necefoğlu ◽  
Gamze Yılmaz Nayir ◽  
Raziye Çatak Çelik ◽  
Tuncer Hökelek
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Water Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Benzene Rings ◽  
Plane Form

In the title complex, [Co(C8H4NO2)2(C6H6N2O)2(H2O)2], the CoIIatom is located on an inversion centre and is coordinated by two 4-cyanobenzoate (CNB) anions, two nicotinamide (NA) ligands and two water molecules. The four O atoms in the equatorial plane form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination sphere is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 22.11 (15)°, while the pyridine and benzene rings are oriented at a dihedral angle of 89.98 (5)°. In the crystal, intermolecular N—H...O and O—H...O hydrogen bonds link the molecules, enclosingR22(8) andR44(8) ring motifs, forming layers parallel to (100). The layers are linkedviaC—H...O and C—H...N hydrogen bonds, resulting in a three-dimensional network. A weak C—H...π interaction is also observed.

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