scholarly journals Crystal structure of a dinuclear CoIIcomplex with bridging fluoride ligands: di-μ-fluorido-bis{tris[(6-methylpyridin-2-yl)methyl]amine}dicobalt(II) bis(tetrafluoridoborate)

2014 ◽  
Vol 70 (11) ◽  
pp. m359-m360 ◽  
Author(s):  
Masataka Inomata ◽  
Yusaku Suenaga
Keyword(s):  
Crystal Structure ◽  
Complex Cation ◽  
Three Dimensional ◽  
High Spin State ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Methyl Amine ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Fluoride Ligands

Reaction of Co(BF4)2·6H2O with tris[(6-methylpyridin-2-yl)methyl]amiine in methanol results in a fluoride abstraction from BF4−, yielding the unexpected title compound, [Co2F2(C21H24N4)2](BF4)2. The complex cation consists of two inversion-related [Co(C21H24N4)]2+moieties bridged by a pair of fluoride ligands. The CoIIcation is six-coordinated in a distorted octahedral geometry and forms a +II high-spin state. In the crystal, the complex cation and the BF4−anion are connected by C—H...F hydrogen bonds, forming a three-dimensional network. An intramolecular C—H...F hydrogen bond is also observed.

scholarly journals Crystal structure and magnetic properties of (tris{4-[1-(2-methoxyethyl)imidazol-2-yl]-3-azabut-3-enyl}amine)iron(II) bis(hexafluoridophosphate)

2019 ◽  
Vol 75 (3) ◽  
pp. 358-361 ◽  
Author(s):  
Kateryna Znovjyak ◽  
Igor O. Fritsky ◽  
Iryna A. Golenya ◽  
Tatiana Y. Sliva ◽  
Matti Haukka
Keyword(s):  
Spin State ◽  
Complex Cation ◽  
Three Dimensional ◽  
Bond Distance ◽  
High Spin State ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Amine Ligand

In the complex cation of the title compound, [Fe(C27H41N10O3)](PF6)2, the tripodal tris{4-[1-(2-methoxyethyl)imidazol-2-yl]-3-azabut-3-enyl}amine ligand is coordinated to an FeII ion through the nitrogen atoms of three imidazole and three imino groups. The Fe atom exhibits a distorted octahedral geometry. In the crystal, L and D antipodes are arranged in layers in the bc plane. Weak C...F and C—H...F/O contacts exist between the ligands of the complex cation and the PF6 − anions, generating a three-dimensional network. At 120 K, the FeII ion is in a low-spin state, with an average Fe—N bond distance of 1.970 (2) Å. On heating, the FeII ion converts to the high-spin state, as demonstrated by magnetic susceptibility measurements.

Bis[1,3-bis(1H-benzimidazol-2-yl)benzene-κN 3]bis(nitrato-κ2 O,O′)cadmium(II) dihydrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2752-m2752 ◽  
Author(s):  
Fa-Yan Meng ◽  
Yi-Ming Zhang ◽  
Seik Weng Ng
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Complex Molecules ◽  
Solvent Water ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title complex, [Cd(NO3)2(C20H14N4)2]·2H2O, the CdII ion, which lies on a crystallographic twofold axis, is bis-chelated by two nitrate ligands and is coordinated by one tertiary N atom from each of two 1,3-bis(1H-benzimidazol-2-ylmethyl)benzene ligands in a distorted octahedral geometry. In the crystal structure, complex molecules and solvent water molecules are connected via hydrogen bonds to form a three-dimensional network.

Hexaaquanickel(II) chelidonate monohydrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2720-m2720 ◽  
Author(s):  
Vaduganathan Yasodha ◽  
Subbaiah Govindarajan ◽  
V. Manivannan ◽  
O. Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Molecular Salt

In the title hydrated molecular salt, [Ni(H2O)6](C7H2O6)·H2O, the Ni cation adopts a slightly distorted octahedral geometry. In the crystal structure, the component species interact by way of O—H...O and weak C—H...O interactions, resulting in a three-dimensional network.

scholarly journals Crystal structure of the tetraaquabis(thiocyanato-κN)cobalt(II)–caffeine–water (1/2/4) co-crystal

2017 ◽  
Vol 73 (7) ◽  
pp. 980-982
Author(s):  
H. El Hamdani ◽  
M. El Amane ◽  
C. Duhayon
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Complex Molecules ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Distorted Octahedral

In the structure of the title compound [systematic name: tetraaquabis(thiocyanato-κN)cobalt(II)–1,3,7-trimethyl-1,2,3,6-tetrahydro-7H-purine-2,6-dione–water (1/2/4)], [Co(NCS)2(H2O)4]·2C8H10N4O2·4H2O, the cobalt(II) cation lies on an inversion centre and is coordinated in a slightly distorted octahedral geometry by the oxygen atoms of four water molecules and two N atoms of twotrans-arranged thiocyanate anions. In the crystal, the complex molecules interact with the caffeine molecules through O—H...N, O—H...O and C—H...S hydrogen bonds and π–π interactions [centroid-to-centroid distance = 3.4715 (5) Å], forming layers parallel to theabplane, which are further connected into a three-dimensional network by O—H...O and O—H...S hydrogen bonds involving the non-coordinating water molecules.

scholarly journals Aqua(4-bromobenzoato-κO)bis(1,10-phenanthroline-κ2N,N′)manganese(II) 4-bromobenzoate dihydrate

IUCrData ◽  
2016 ◽  
Vol 1 (5) ◽  
Author(s):  
Ling-Xia Hu ◽  
Bi-Song Zhang
Keyword(s):  
Complex Cation ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Lattice Water ◽  
Dimensional Network ◽  
Distorted Octahedral

The asymmetric unit of the title compound, [Mn(C7H4BrO2)(C12H8N2)2(H2O)](C7H4BrO2)·2H2O, consists of a monovalent [Mn(C7H4BrO2)(C12H8N2)2(H2O)]+complex cation, a 4-bromobenzoate anion and two lattice water molecules. In the complex cation, the MnIIatom is coordinated by four N atoms from two bidentate chelating 1,10-phenanthroline (phen) ligands and two O atoms, one from a 4-bromobenzoate anion and the other from a coordinating water molecule. This completes an MnN4O2coordination sphere with a distorted octahedral geometry. The Br atom of the bromobenzoato ligand is equally disordered over two sites. In the crystal, the complex cations are connected to each otherviaO—H...O, O—H...Br and C—H...O hydrogen bonds and π–π stacking interactions [closest separation = 3.492 (4) Å]. π–π contacts [closest separation = 3.771 (4) Å] also link the complex cations to both the coordinated and non-coordinating 4-bromobenzoate anions. Overall, these contacts generate a three-dimensional network structure.

Synthesis, Crystal Structure, Magnetic, Thermal and Fluorescent Properties of [Co(H2O)4(nia)2](suc)·(H2suc)

2010 ◽  
Vol 65 (6) ◽  
pp. 695-700 ◽  
Author(s):  
Selcuk Demir ◽  
Veysel T. Yilmaz ◽  
Jerzy Mroziński ◽  
Tadeusz Lis ◽  
Małgorzata Hołyńska
Keyword(s):  
Room Temperature ◽  
Complex Cation ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
X Ray Diffraction ◽  
Fluorescent Properties ◽  
X Ray ◽  
Dimensional Network ◽  
Distorted Octahedral

A new cobalt(II) complex, [Co(H2O)4(nia)2](suc)·(H2suc) [nicotinamide = nia, succinate = suc2−], has been synthesized and characterized by elemental analysis, IR, TG-DTA and single-crystal X-ray diffraction. It contains [Co(H2O)4(nia)2]2+ complex cations, uncoordinated suc2− anios and H2suc species. In the complex cation the cobalt(II) ion is coordinated by four aqua and two nia ligands in a distorted octahedral geometry. The suc2− dianion acts as a counter-ion, while H2suc is present as a molecule of solvation. A three-dimensional network is formed by O-H· · ·O and N-H· · ·O hydrogen bonds. The title complex exhibits luminescence in the solid state at room temperature. The magnetism of the complex was studied over the temperature range 1.8 - 300 K.

The first three-dimensional FeIII–SrIIheterometallic coordination polymer: poly[[diaquatetrakis(μ3-pyridine-2,3-dicarboxylato)diiron(III)strontium(II)] dihydrate]

2015 ◽  
Vol 71 (10) ◽  
pp. 903-907 ◽  
Author(s):  
Yongfeng Yang ◽  
Tao Li ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Coordination Geometry ◽  
One Dimensional ◽  
Distorted Octahedral

The title compound, poly[[diaqua-1κ2O-tetrakis(μ3-pyridine-2,3-dicarboxylato)-2:1:2′κ10N,O2:O2′,O3:O3′;2:1:2′κ8O3:O3′:N,O2-diiron(III)strontium(II)] dihydrate], {[Fe2Sr(C7H3O4)4(H2O)2]·2H2O}n, which has triclinic (P\overline{1}) symmetry, was prepared by the reaction of pyridine-2,3-dicarboxylic acid, SrCl2·6H2O and Fe(OAc)2(OH) (OAc is acetate) in the presence of imidazole in water at 363 K. In the crystal structure, the pyridine-2,3-dicarboxylate (pydc2−) ligand exhibits μ3-η1,η1:η1:η1and μ3-η1,η1:η1,η1:η1coordination modes, bridging two FeIIIcations and one SrIIcation. The SrIIcation, which is located on an inversion centre, is eight-coordinated by six O atoms of four pydc2−ligands and two water molecules. The coordination geometry of the SrIIcation can be best described as distorted dodecahedral. The FeIIIcation is six-coordinated by O and N atoms of four pydc2−ligands in a slightly distorted octahedral geometry. Each FeIIIcation bridges two neighbouring FeIIIcations to form a one-dimensional [Fe2(pydc)4]nchain. The chains are connected by SrIIcations to form a three-dimensional framework. The topology type of this framework istfj. The structure displays O—H...O and C—H...O hydrogen bonding.

scholarly journals fac-Triaqua(2,2′-bipyridine-κ2 N,N′)(nitrato-κO)cobalt(II) chloride

IUCrData ◽  
2018 ◽  
Vol 3 (6) ◽  
Author(s):  
Mouhamadou Birame Diop ◽  
Libasse Diop ◽  
Sylvain Bernès
Keyword(s):  
Complex Cation ◽  
Three Dimensional ◽  
Chloride Ions ◽  
Chloride Anion ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Nitrate Anion ◽  
Asymmetric Unit ◽  
Distorted Octahedral

The asymmetric unit of the title complex, [Co(NO3)(C10H8N2)(H2O)3]Cl, consists of a chloride anion and a complex cation, which is built on a monodentate nitrate anion, three water molecules and one bidentate 2,2′-bipyridine molecule, coordinated to a CoII cation, in a distorted octahedral geometry. The water molecules are arranged in a facial geometry, and serve as donors for hydrogen bonding. Acceptor sites in the crystal are chloride ions and one O atom of the coordinating nitrate ion. A three-dimensional framework is formed, based on O—H...O and O—H...Cl contacts.

scholarly journals Bis(μ-4-amino-N-oxidobenzamide)bis[(4-amino-N-oxidobenzamide)aquacobalt] dihydrate

IUCrData ◽  
2016 ◽  
Vol 1 (10) ◽  
Author(s):  
Xulong Ding ◽  
Li Li
Keyword(s):  
Water Molecule ◽  
Binuclear Complex ◽  
Complex Molecule ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Solvent Water ◽  
Dimensional Network ◽  
Distorted Octahedral

The structure of the title compound, [Co2(C7H7N2O2)4(H2O)2]·2H2O, consists of a centrosymmetric binuclear [Co2(4-Apha)4(H2O)2] complex molecule (4-AphaH = 4-aminophenylhydroxamic acid), and two solvent water molecules. Each CoII cation is six coordinate, binding five oxygen atoms from three 4-Apha− ligands and a water molecule in a slightly distorted octahedral geometry. Two of the 4-Apha− ligands bridge two neighbouring CoII ions to form the binuclear complex. A three-dimensional network structure is generated by O—H...O, N—H...O, and N—H...N hydrogen bonds.

scholarly journals Crystal structure of bis{N-[2-(dimethylamino)ethyl]quinolin-8-amine-κ3N,N′,N′′}nickel(II) dichloride 3.5-hydrate

2014 ◽  
Vol 70 (9) ◽  
pp. m339-m340
Author(s):  
Benson M. Kariuki ◽  
Abdul-Razak H. Al-Sudani
Keyword(s):  
Crystal Structure ◽  
Metal Ion ◽  
Complex Cation ◽  
Three Dimensional ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Amine Ligands

In the title compound, [Ni(C13H17N3)2]Cl2·3.5H2O, the geometry of the NiN6complex cation is slightly distorted octahedral, with a facial arrangement of the two tridentateN-[2-(dimethylamino)ethyl]quinolin-8-amine ligands around the metal ion. The asymmetric unit consists of two independent complex half-molecules located on centres of inversion, together with two chloride counter-anions and 3.5 water molecules of solvation, one of which is disordered across an inversion centre. In the crystal, O—H...O, O—H...Cl and N—H...Cl hydrogen-bonding interactions form a three-dimensional network structure.

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