Copper(II) and Nickel(II) Complexes of Pentaaza Macrocyclic Ligands

1987 ◽  
Vol 40 (2) ◽  
pp. 347 ◽  
Author(s):  
P Osvath ◽  
NF Curtis ◽  
DC Weatherburn

The preparations of the pentaazamacrocyclic ligands 1,4,7,10,13-pentaazacyclopentadecane, cpad , l,4,7,l0,13-pentaazacyclohexadecane, ched , l,4,7,l0,14-pentaazacycloheptadecane, chad , 1,4,7,11,14-pentaazacycloheptadecane, cnad , 1,4,7,11,15-pentaazacyclooctadecane, cnad , 1,4,8,11,15-pentaazacyclooctadecane, cnad , 1,4,8,12,16-pentaazacyclononadecane, cnad , and 1,5,9,13,17-pentaazacycloeicosane, ceic , as well as the new linear pentaamine N-(3-aminopropy1)- N'-[3-[(3-aminopropyl)amino] propyl ]propane-1,3-diamine, tpah , are described. Copper(II) and nickel(II) complexes of the above ligands have been prepared and characterized. The nickel(II) complexes of the smaller macrocycles and the linear pentaamine contain NiII in a tetragonally distorted octahedral environment in the presence of coordinating anions or in aqueous solution but the [Ni( cnad )]2+ and [Ni( ceic )]2+ cations are five-coordinate both in the solid state and in aqueous solution. The copper(II) complexes of the macrocyclic pentaamines appear to be square-pyramidal on the basis of their electronic spectra, whereas the complex [cu( tpah )]2+ is probably trigonal- bipyramidal.

2007 ◽  
Vol 63 (11) ◽  
pp. i189-i189 ◽  
Author(s):  
Le-Qing Fan ◽  
Ji-Huai Wu

Single crystals of ammonium lead iodide, NH4PbI3, have been obtained by solid-state reactions. Each PbII ion is coordinated by six I− ions in a distorted octahedral environment. PbI6 octahedra are connected by common edges, forming a one-dimensional anion chain. All atoms except one H atom in a general position have site symmetry m.


2006 ◽  
Vol 62 (5) ◽  
pp. m1132-m1133 ◽  
Author(s):  
Han-Mao Kuang ◽  
Xi-Rui Zeng ◽  
Yin-Qiu Liu ◽  
Qiu-Yan Luo ◽  
Xiao-Niu Fang

The title complex, [Ni(C10H8N3O2)2]·CH3OH, is a mononuclear nickel(II) compound containing two di-2-pyridylamine N,N′-dioxide (dpa dioxide) ligands that are nearly perpendicular to each other. The NiII ion of the complex has a distorted octahedral environment with the equatorial plane formed by an N atom from each amine group and two O atoms of one ligand, while the axial positions are occupied by two O atoms of the second ligand. In the solid state, hydrogen-bonding interactions are dominant, with solvent molecules also participating in hydrogen bonding.


2010 ◽  
Vol 75 (8) ◽  
pp. 1085-1092 ◽  
Author(s):  
Arumugam Manohar ◽  
Kuppukannu Ramalingam ◽  
Gabriele Bocelli ◽  
Andrea Cantoni

Reaction of bis(diethanoldithiocarbamato)copper(II), [Cu(deadtc)2] and bis(di-n-propyldithiocarbamato)zinc(II), [Zn(dnpdtc)2] complexes with 2,2?-bipyridine (2,2?-bipy) (1:1 ratio) in ethanol was investigated. Simple mixing of the reactants in 1:1 ratio resulted in five-coordinated [Cu(2,2?-bipy)2S]CH3CH2OSO3H (1) and [Zn(2,2?-bipy)2S]CH3CH2OSO3H.2H2O (2). Refluxing the reactants and cooling the contents result in the formation of [Zn(2,2?-bipy)(H2O)2]SO4 (3) and [Cu(2,2?-bipy)(H2O)2]SO4 (4). Complexes 1 and 2 are monomeric with trigonal bipyramidal geometry. A distorted octahedral environment was observed in complexes 3 and 4. The crystal structure of 4 has already been reported in the literature. Crystal structures of 1, 2 and 3 are reported in this paper. The M-S distances in 1 and 2 are 2.318(1) ? and 2.323 ?, respectively. The N-M-S angles are larger than the N-M-N angles due to the steric requirements.


IUCrData ◽  
2018 ◽  
Vol 3 (8) ◽  
Author(s):  
Antoine Blaise Kama ◽  
Mamadou Sidibe ◽  
Cheikh Abdoul Khadre Diop ◽  
Florent Blanchard

The title compound, [Co(C6H6NO3S)2(H2O)2] n , was obtained from a mixture of Co(NO3)2·6H2O and a previously synthesized salt, namely CyNH3·NH2PhSO3, in a 1:1 ratio (Cy = cyclohexyl; Ph = phenyl). The crystal structure consists of a three-dimensional supramolecular framework, in which polymeric layers are interconnected via N—H...O and O—H...O hydrogen bonding. The polymeric layers are formed by an interconnection of neighbouring cobalt(II) cations via NH2PhSO3 − bridges. Each cobalt(II) cation is surrounded by four NH2PhSO3 − moieties and two water molecules, leading to a distorted octahedral environment.


2012 ◽  
Vol 68 (6) ◽  
pp. m809-m810 ◽  
Author(s):  
Chao-Zhu Li ◽  
Xue-Ren Huang

In the title complex, [Ni(C12H9N2O3S)2(H2O)2]·4H2O, the NiII ion is coordinated by four N atoms from two bidentate chelating 4-[(pyridin-2-yl)methylideneamino]benzenesulfonate ligands and two O atoms from cis-related water molecules in a slightly distorted octahedral environment [Ni—N = 2.071 (3)–2.121 (3) Å and Ni—O = 2.071 (2) and 2.073 (3) Å]. In the crystal, the coordinated water molecules and the four water molecules of solvation are involved in intermolecular O—H...O hydrogen-bonding interactions with water and sulfonate O-atom acceptors, giving a three-dimensional framework structure.


2012 ◽  
Vol 68 (6) ◽  
pp. m781-m781
Author(s):  
Franc Perdih

In the title compound, [Al(C7H9O2)3], the AlIII cation is coordinated by six O atoms from three 2-acetylcyclopentanonate ligands in a slightly distorted octahedral environment, with Al—O bond lengths in the range 1.882 (2)–1.896 (2) Å. In the crystal, molecules are linked together via C—H...O interactions. One of the C atoms in one ring has a large thermal motion compared to the other atoms, indicating some possible disorder. However, the treatment of this C atom as disordered over two positions did not give a significant improvement.


2012 ◽  
Vol 68 (8) ◽  
pp. m1047-m1047 ◽  
Author(s):  
Qiu Ping Huang ◽  
Jing Jing Guo ◽  
Yi Dong Zhang ◽  
Shu Hua Zhang

The asymmetric unit of the title compound, [Co(C9H8Cl2NO)3], contains three independent molecules. In each molecule, the CoIIIion is coordinated by an O atom and an N atom from three bidentate 2,4-dichloro-6-(ethyliminomethyl)phenolate ligands in a slightly distorted octahedral environment. In the crystal, a weak C—H...Cl hydrogen bond is observed.


2007 ◽  
Vol 63 (11) ◽  
pp. m2813-m2814 ◽  
Author(s):  
Xiao-peng Xuan ◽  
Pei-zheng Zhao ◽  
Shu-xia Zhang

In the title compound, [Mn(C7H5O3)2(C14H12N2)]·C14H12N2·2H2O, the MnII ion is coordinated by a bidentate 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand and two bidentate 3-hydroxybenzoate anions in a distorted octahedral environment. The structure is stabilized by O—H...O and O—H...N hydrogen bonds involving water molecules, the 3-hydroxybenzoate ligands and the uncoordinated dmphen molecules to form a three-dimensional network.


2006 ◽  
Vol 62 (4) ◽  
pp. m736-m737
Author(s):  
Rong Yu ◽  
Ya-Qi Jiang ◽  
Zhao-Xiong Xie

The title compound, [Zn(C12H6O4)(C3H10N2)2] n , has been prepared from zinc(II), naphthalene-2,6-dicarboxylic acid (H2napdc) and 1,3-propylenediamine (pren). The Zn atom lies on a crystallographic centre of symmetry and is coordinated by two monodentate naphthalene-2,6-dicarboxylate ligands and two chelating 1,3-propylenediamine ligands in a distorted octahedral environment. The naphthalene-2,6-dicarboxylate ligands link the Zn atoms, forming a one-dimensional chain structure.


Author(s):  
Stefan Suckert ◽  
Inke Jess ◽  
Christian Näther

In the crystal structure of the mononuclear title compound, [Mn(NCS)2(C10H8N2)2]·C10H8N2, the MnIIcation is coordinated in an all-cisconfiguration by two N-bound thiocyanate anions and two 2,2′-bipyridine ligands within a slightly distorted octahedral environment. The asymmetric unit consists of one MnIIcation, two thiocyanate anions and two 2,2′-bipyridine ligands, as well as two non-coordinating 2,2′-bipyridine ligands that are each located on centres of inversion. In the crystal structure, the discrete [Mn(NCS)2(C10H8N2)2] complex molecules are arranged in such a way that cavities are formed, in which the solvent 2,2′-bipyridine molecules are located. Apart from van der Waals forces, there are no remarkable intermolecular interactions present in the crystal structure.


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