scholarly journals Tris(1,10-phenanthroline-κ2 N,N′)cobalt(II) bis(2,4,5-tricarboxybenzoate) monohydrate

IUCrData ◽  
2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Kai-Long Zhong ◽  
Guo-Qing Cao ◽  
Wei Song ◽  
Chao Ni

In the complex cation of the title salt, [Co(C12H8N2)3](C10H5O8)2·H2O, the CoII cation is situated on a twofold rotation axis and is coordinated in a distorted octahedral manner by six N atoms from three chelating 1,10-phenanthroline (phen) ligands. In the crystal, the non-coordinating 2,4,5-tricarboxybenzoate anions interact with each other via O—H...O hydrogen bonds, generating a two-dimensional network parallel to (100). Adjacent sheets are connected by waterO—H...Ocarboxylate hydrogen bonds, resulting in a three-dimensional network structure that surrounds the complex cations.

Author(s):  
Gülçin Şefiye Aşkın ◽  
Fatih Çelik ◽  
Nefise Dilek ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek

In the title polymeric compound, [Co(C8H5O3)2(C4H4N2)(H2O)2]n, the CoIIatom is located on a twofold rotation axis and has a slightly distorted octahedral coordination sphere. In the equatorial plane, it is coordinated by two carboxylate O atoms of two symmetry-related monodentate formylbenzoate anions and by two N atoms of two bridging pyrazine ligands. The latter are bisected by the twofold rotation axis. The axial positions are occupied by two O atoms of the coordinating water molecules. In the formylbenzoate anion, the carboxylate group is twisted away from the attached benzene ring by 7.50 (8)°, while the benzene and pyrazine rings are oriented at a dihedral angle of 64.90 (4)°. The pyrazine ligands bridge the CoIIcations, forming linear chains running along theb-axis direction. Strong intramolecular O—H...O hydrogen bonds link the water molecules to the carboxylate O atoms. In the crystal, weak O—Hwater...Owaterhydrogen bonds link adjacent chains into layers parallel to thebcplane. The layers are linkedviaC—Hpyrazine...Oformylhydrogen bonds, forming a three-dimensional network. There are also weak C—H...π interactions present.


2009 ◽  
Vol 65 (3) ◽  
pp. m118-m120
Author(s):  
Olha Sereda ◽  
Helen Stoeckli-Evans

The title coordination polymer, [Cd3Co2(CN)12(C2H8N2)4]n, has an infinite two-dimensional network structure. The asymmetric unit is composed of two crystallographically independent CdIIatoms, one of which is located on a twofold rotation axis. There are two independent ethylenediamine (en) ligands, one of which bis-chelates to the Cd atom that sits in a general position, while the other bridges this Cd atom to that sitting on the twofold axis. The Cd atom located on the twofold rotation axis is linked to four equivalent CoIIIatomsviacyanide bridges, while the Cd atom that sits in a general position is connected to three equivalent CoIIIatomsviacyanide bridges. In this way, a series of trinuclear, tetranuclear and pentanuclear macrocycles are linked to form a two-dimensional network structure lying parallel to thebcplane. In the crystal structure, these two-dimensional networks are linkedviaN—H...N hydrogen bonds involving an en NH2H atom and a cyanide N atom, leading to the formation of a three-dimensional structure. This coordination polymer is only the second example involving a cyanometallate where the en ligand is present in both chelating and bridging coordination modes.


IUCrData ◽  
2018 ◽  
Vol 3 (6) ◽  
Author(s):  
S. Manimaran ◽  
M. Manjunathan ◽  
E. Govindan ◽  
K. Sambathkumar ◽  
K. Anbalagan

In the title complex, [CoBr(C2H7N)(C2H8N2)2]Br2, the CoIII centre has a distorted octahedral coordination environment, and is surrounded by four N atoms in the equatorial plane, with an additional N atom and the Br atom occupying the axial positions. The complex is isostructural with the Cl compound for which the X-ray structure has also been reported [Anbalagan, Mahalakshmi & Ganeshraja (2011). J. Mol. Struct. 1005, 45–52]. In the crystal, the complex cation and the two counter-anions are linked via N—H...Br hydrogen bonds, forming a three-dimensional network.


2009 ◽  
Vol 65 (6) ◽  
pp. m622-m622 ◽  
Author(s):  
Qi-Hua Zhao ◽  
Ai-Ling Fan ◽  
Li-Nan Li ◽  
Ming-Jing Xie

In the title mononuclear complex, [Zn(N3)2(C8H8N6)2], the ZnIIatom, lying on a twofold rotation axis, is six-coordinated in a distorted octahedral environment by four N atoms from two 2,4-diamino-6-(2-pyridyl)-1,3,5-triazine ligands and two N atoms from two end-on-coordinated azide ions. N—H...N hydrogen bonds between the ligand and azide ion link the complex molecules into a three-dimensional network.


Author(s):  
Aziz B. Ibragimov ◽  
Bakhtiyar S. Zakirov ◽  
Jamshid M. Ashurov

Reaction ofm-aminobenzoic acid (MABA), diethanolamine (DEA) and MnCl2·4H2O led to the formation of the title salt, [Mn(C4H11NO2)2](C7H6NO2)2. In the complex cation, the Mn2+ion is located on an inversion centre and is coordinated by two symmetry-related tridentate DEA molecules, leading to the formation of a slightly distorted MnN2O4octahedron. The MABA−counter-anions are connected to the complex ion by a pair of rather strong O—H...O hydrogen bonds, yielding a 1:2 supramolecular aggregate. Much weaker N—H...O hydrogen bonds connect neighbouring aggregates into a three-dimensional network structure.


IUCrData ◽  
2019 ◽  
Vol 4 (3) ◽  
Author(s):  
A. SubbiahPandi ◽  
Y. AaminaNaaz ◽  
C. Maharaja Mahalakshmi ◽  
K. Anbalagan

The hydrated title salt, [CoCl(C6H6FN)(C2H8N2)2]Cl2·H2O, comprises of one chloridobis(ethane-1,2-diamine)(4-fluoroaniline)cobalt(III) cation, two chloride counter-anions and a water molecule of crystallization. The CoIII ion has a distorted octahedral environment and is surrounded by four N atoms in the equatorial plane, with a fifth N atom and one Cl− ligand occupying the axial positions. One of the methylene C groups in one of the ethane-1,2-diamine ligands is disordered over two set of sites in a 0.832 (10):0.168 (10) ratio. In the crystal, the complex cation, the two counter-anions and the water molecule of crystallization are linked via N—H...Cl, O—H...Cl and C—H...Cl hydrogen bonds, generating rings with R 4 2(8), R 2 1(6), R 4 2(10) and R 2 2(6) graph-set motifs within a three-dimensional network.


2016 ◽  
Vol 72 (7) ◽  
pp. 1047-1049 ◽  
Author(s):  
Mamadou Ndiaye ◽  
Abdoulaye Samb ◽  
Libasse Diop ◽  
Thierry Maris

In the structure of the title salt, (C5H14N3)2[CuCl4], the CuIIatom in the anion lies on a twofold rotation axis. The tetrachloridocuprate(II) anion adopts a flattened tetrahedral coordination environment and interacts electrostatically with the tetramethylguanidinium cation. The crystal packing is additionally consolidated through N—H...Cl and C—H...Cl hydrogen bonds, resulting in a three-dimensional network structure.


2018 ◽  
Vol 74 (9) ◽  
pp. 1339-1343 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Necmi Dege ◽  
James Pogrebetsky ◽  
Turganbay S. Iskenderov

In the title compound, [Cd(C16H16O3)2(C12H8N2)]·4H2O, the Cd ion lies on a twofold rotation axis and is chelated by two monodeprotonated residues of the L-tyrosine-derived ligand (S)-2-[(2-hydroxybenzyl)amino]-3-(4-hydroxyphenyl)propanoic acid (L) in a κ2 N,O amino acid chelating mode, exhibiting an (N,N′)-trans disposition, and by 1,10-phenanthroline in a κ2 N,N′ mode. The latter ligand is also located about the twofold rotation axis that bisects the central six-members ring. The phenolic groups remain protonated and non-coordinating and take part as acceptors in the intramolecular hydrogen bonds with the amino groups of the acido ligands. The Cd ion is six-coordinated in a distorted octahedral environment. In the crystal, O—H...O hydrogen bonds result in the formation of three-dimensional network structures. The title complex has also been characterized by IR and 1H NMR spectroscopy and DFT studies. The crystal studied was refined as an inversion twin.


2012 ◽  
Vol 68 (4) ◽  
pp. m400-m401
Author(s):  
Julia A. Rusanova

The ionic NiIItitle complex, [Ni(C3H10N2)2(H2O)2][Ni(SO4)2(C3H10N2)2], is built up of [Ni(dipr)2(H2O)2]2+complex cations and [Ni(dipr)2(SO4)2]2−complex anions (dipr is propane-1,3-diamine). Both NiIIatoms display a slightly distorted octahedral coordination and are located on inversion centers. There are several types of hydrogen-bonding interactions, which connect complex cations and anions into a two-dimensional network parallel to (010). Hydrogen bonds formed by the axially coordinated water molecule of the complex cation and one of the O atoms of the sulfate groups of the complex anion (first type) link them into chains along thecaxis. These chains are linked to each other through hydrogen bonds formed by an O atom (second type) of the SO4groups and NH2groups of the ligand of the complex cations from neighboring chains, forming a two-dimensional hydrogen-bonded net perpendicular to thebaxis. The third type of O atoms of the sulfate groups of the complex anion are also linked into chains by a combination of both previously described types of H-atom connections.


2014 ◽  
Vol 70 (2) ◽  
pp. m65-m66 ◽  
Author(s):  
Fatih Çelik ◽  
Nefise Dilek ◽  
Nagihan Çaylak Delibaş ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek

In the title polymeric compound, [Ni(C8H5O3)2(C4H4N2)(H2O)2]n, the NiIIatom is located on a twofold rotation axis and has a slightly distorted octahedral coordination sphere. In the equatorial plane, it is coordinated by two carboxylate O atoms of two symmetry-related monodentate formylbenzoate anions and by two N atoms of the bridging pyrazine ligand, which is bisected by the twofold rotation axis. The axial positions are occupied by two O atoms of the coordinating water molecules. In the formylbenzoate anion, the carboxylate group is twisted away from the attached benzene ring by 7.0 (6)°, while the benzene and pyrazine rings are oriented at a dihedral angle of 66.2 (3)°. The pyrazine ligands bridge the NiIIcations, forming polymeric chains running along theb-axis direction. Intramolecular O—H...O hydrogen bonds link the water ligands to the carboxylate O atoms. In the crystal, water–water O—H...O hydrogen bonds link adjacent chains into layers parallel to thebcplane. Pyrazine–formyl C—H...O hydrogen bonds link the layers, forming a three-dimensional network. There are also weak C—H...π interactions present. The title compound is isotypic with the copper(II) complex [Çeliket al.(2014a).Acta Cryst. E70, m4–m5].


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