Novel heterobimetallic Cu/Mn coordination polymers prepared by “direct permanganate” synthesis

Beznischenko, Asya O.; Makhankova, Valeriya G.; Kokozay, Vladimir N.; Zubatyuk, Roman I.; Шишкин, Олег В.

doi:10.1016/j.inoche.2007.07.020

Cited by 14 publications

(11 citation statements)

References 20 publications

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“…The asymmetric unit also contains a solvate water molecule. The distances and angles agree with related structures (Beznischenko et al, 2007;Pajunen, 1981). The terminal C-atom of the ethyl group was disordered over two sites C6 and C6′ with equal site occopancy factors.…”

Section: Methodssupporting

confidence: 76%

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Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN³)methane]cobalt(II) monohydrate

Qian

Luo

et al. 2011

Acta Cryst E

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Key indicators: single-crystal X-ray study; T = 298 K; mean (C-C) = 0.005 Å; disorder in main residue; R factor = 0.040; wR factor = 0.114; data-to-parameter ratio = 14.7.In the title compound, [CoCl 2 (C 13 H 20 N 4 )]ÁH 2 O, the Co II atom lies on a mirror plane and is four-coordinated by two N atoms of the imidazole ligand and two Cl atoms in a distorted tetrahedral arrangement. The water molecule participates in the formation of hydrogen bonds, resulting in a three dimensional network involving the Cl atoms and the NH groups. The terminal C atom of the ethyl group is disordered over two sites of equal occupancy. Related literature

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Section: Methodssupporting

confidence: 76%

“…For background to the use of imidazole derivatives as catalyts and biocatalysts for dioxygen transport and electron storage, see: Bouwman et al (2000). For related structures, see: Beznischenko et al (2007); Pajunen (1981). Hydrogen-bond geometry (Å , ).…”

Section: Related Literaturementioning

confidence: 99%

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN³)methane]cobalt(II) monohydrate

Qian

Luo

et al. 2011

Acta Cryst E

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“…4,5 In these compounds, the dimensionality of the coordination network is controlled by the relative configuration of the adjacent metal ions linked by an oxalate bridge. Thus, in the 2D honeycomb structure obtained using [XR 4 ] + (X = N and P; R = aryl and alkyl), 9-13 the decamethylmetallocenium unit [A(Cp*) 2 ] + , 14,15 or [Cu(Me 2 en) 2 ] 2+ (Me 2 en = N,N-dimethylethylenediamine) as the cation, 16 the relative configurations are opposite, e.g. (Δ, Λ).…”

Section: Introductionmentioning

confidence: 99%

Magnetic order in a novel 3D oxalate-based coordination polymer {[Cu(bpy)₃][Mn₂(C₂O₄)₃]·H₂O}_n

et al. 2015

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A heterometallic coordination polymer {[Cu(bpy)3][Mn2(C2O4)3]·H2O}n (1; bpy = 2,2'-bipyridine) was synthesized using a building-block approach and characterized by IR spectroscopy, single-crystal X-ray diffraction, magnetization measurement, and X-band ESR spectroscopy both on a single crystal and a polycrystalline sample. The molecular structure of 1 is made of a three-dimensional (3D) anionic network [Mn2(C2O4)3]n(2n-) and tris-chelated cations [Cu(bpy)3](2+) occupying the vacancies of the framework. In compound 1 magnetic order is confirmed below 12.8 K - magnetization measurements reveal an antiferromagnetic-like network of canted Mn(2+) spins with incorporated paramagnetic Cu(2+) centres. The ESR spectroscopy distinctly shows the phase transition; above T≈ 13 K, single isotropic Lorentzian lines of Mn(2+) ions in the high spin state S = 5/2 were observed, while below this temperature, only characteristic Cu(2+) signals from cations were detected. Thermal decomposition residues of 1 at different temperatures (800-1000 °C) were analyzed by powder X-ray diffraction; by heating the sample up to 1000 °C the spinel oxide CuMn2O4 [94.1(2) wt%] was formed. From the refined structural parameters, it could be seen that the obtained spinel is characterized by the inversion parameter δ∼ 0.8, and therefore the structural formula at room temperature can be written as (tet)[Cu0.17Mn0.83](oct)[Mn1.17Cu0.83]O4.

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“…The title compound C 27 H 27 NO 5 is the benzoate ester of the opioid receptor antagonist naltrexone and is important as an intermediate for the preparation N-methylnaltrexone bromide. It is used for the treatment of a number of diseases which are related to abnormal release of endogenous opium (Beznischenko et al, 2007). The structures of a number of derivatives of naltrexone are known, e.g.…”

Section: S1 Commentmentioning

confidence: 99%

O-Benzoylnaltrexone

Yang¹,

Wang²,

Liu³

et al. 2013

Acta Cryst E

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In the title compound, C27H27NO5 (systematic name: 17-cyclopropylmethyl-14-hydroxy-6-oxo-4,5-epoxymorphinan-6-yl benzoate), which is the benzoate ester of the opioid receptor antagonist naltrexone, the dihedral angle between the two phenyl rings is 77.1 (1)°. In the crystal, a weak aromatic C—H⋯Ocarboxyl hydrogen bond involving the benzoate groups of adjacent molecules gives rise to a chain extending along the a-axis direction. The known absolute configuration for the molecule was inferred from a previous naltrexone structure.

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Novel heterobimetallic Cu/Mn coordination polymers prepared by “direct permanganate” synthesis

Cited by 14 publications

References 20 publications

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN³)methane]cobalt(II) monohydrate

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN³)methane]cobalt(II) monohydrate

Magnetic order in a novel 3D oxalate-based coordination polymer {[Cu(bpy)₃][Mn₂(C₂O₄)₃]·H₂O}_n

O-Benzoylnaltrexone

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Novel heterobimetallic Cu/Mn coordination polymers prepared by “direct permanganate” synthesis

Cited by 14 publications

References 20 publications

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN3)methane]cobalt(II) monohydrate

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN3)methane]cobalt(II) monohydrate

Magnetic order in a novel 3D oxalate-based coordination polymer {[Cu(bpy)3][Mn2(C2O4)3]·H2O}n

O-Benzoylnaltrexone

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Product

Resources

About

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN³)methane]cobalt(II) monohydrate

Dichlorido[bis(2-ethyl-5-methyl-1H-imidazol-4-yl-κN³)methane]cobalt(II) monohydrate

Magnetic order in a novel 3D oxalate-based coordination polymer {[Cu(bpy)₃][Mn₂(C₂O₄)₃]·H₂O}_n