A novel coordination mode for oxygen: preparation and properties of (NBun4)2[V4O(edt)2Cl8] containing a square planar oxide bridge

Rambo, Joe R.; Huffman, John C.; Eisenstein, Odile; Christou, George

doi:10.1021/ja00202a061

Cited by 44 publications

(12 citation statements)

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“…Freie Universität Berlin, Institut für Chemie und Biochemie, Fabeckstr. [34][35][36]14195 Berlin, Germany. E-mail: jspandl@chemie.fu-berlin.de pyridyl group is readily applicable in coordination chemistry while the azido group has a potential synthetic application as 1,3-dipole in cycloadditions like the commonly copper catalysed Huisgen reaction.…”

Section: 1039/c6dt03638dmentioning

confidence: 99%

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Functional polyoxometalates from solvothermal reactions of VOSO₄ with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

et al. 2017

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We report a study on the structure directing effects of functional groups and counterions. The aim was to find a facile and high yielding synthetic procedure to obtain polyoxometalate (POM) building blocks for post-functionalisation. Therefore, solvothermal reactions of VOSO with various tris(hydroxymethyl)methane derivatives in alkaline methanolic solutions were investigated. In doing so, new POM fragments were isolated and characterised. The binding modes of the functionalised tripodal alkoxides turned out to be surprisingly different.

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Section: 1039/c6dt03638dmentioning

confidence: 99%

“…[30][31][32] Other known [V 4 ] aggregates are the non-planar butterfly complexes. [33][34][35][36][37] For our examples, two tripodal ligands are capping the tetrahedral voids on both sides of the aggregates. Bidentate sulfato and methanol ligands are bound to the corners of the POM structure.…”

Section: Functionalised Tetranuclear Polyoxoalkoxovanadatesmentioning

confidence: 99%

Functional polyoxometalates from solvothermal reactions of VOSO₄ with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

et al. 2017

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“…Compounds containing sulphur, as well as their metal complexes exhibit numerous biochemical applications [3][4][5]. 2-Hydroxy-pyridine-N-oxide (HOPNO) [6] and 2-mercaptopyridine-N-oxide (HSPNO) [7,8] have been described as new and efficient transition-state analog (TS-analog) inhibitors for the mushroom tyrosinase enzyme.…”

Section: Introductionmentioning

confidence: 99%

The Ni(II) Complex of 2-Hydroxy-Pyridine-N-Oxide 2-Isothionate: Synthesis, Characterization, Biological Studies, and X-ray Crystal Structures using (1) Cu Kα Data and (2) Synchrotron Data

Makhyoun¹,

Palmer²,

Soayed³

et al. 2014

Journal of Materials Science and Nanotechnology

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C 12 H 20 N 6 NiO 6 S 2 or NiL 2 (SCN) 2 ](NH 4 ) 2 .2H 2 O, where L is 2-hydroxy-pyridine-N-oxide, has been prepared and characterized using elemental analyses, IR, UV and visible spectrometry, magnetic moment measurements, thermal analyses and single crystal X-ray analyis. The results indicate that the complex reacts as a bidentate ligand and is bound to the metal ion via the two oxygen atoms of the ligand (HL). The activation energies, ∆E*, entropies ∆S*, enthalpies ∆H* and order of reactions have been derived from differential thermogravimetric (DTA) curves. Based on inhibition zone diameter measurements, the complex exhibited significant antibacterial activity against both Staphylococcus aureus and Escherichia coli. It also exhibited significant antifungal activity against Candida albicans, but no activity was found against Aspergillus flavus. The crystal structure of the Ni(II) complex [C 12 H 20 N 6 Ni O 6 S 2 ], Mr = 467.17, was determined from Cu Kα X-ray diffraction data, λ = 1.54178 Å, at 100 K using direct methods. The crystals are monoclinic, space group P2 1 /n with Z = 4 and a = 8.9893(2) Å, b = 17.6680(5) Å, c = 12.5665(3) Å, β = 108.609(1)°. In parallel with this study corresponding results were derived for the crystal structure determined independently from synchrotron X-ray diffraction data, λ = 0.61990 Å, at 100 K. The unit cell parameters derived in this experiment are a = 9.000(2) Å, b = 17.700(4) Å, c = 12.590(3) Å, β = 108.61(3)°. Both studies show 4 O and 2 N atoms coordinating Ni in a distorted octahedral arrangement. Each of the Ni 2-hydroxy-pyridinium-N-oxide moieties is highly planar and the S=C=N-Ni ligands are approximately linear. The crystal structure is characterised by a number of strong hydrogen bonds.

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“…Further, compounds containing sulphur, such as 2-mercaptopyridine, 2-mercaptopyridine-N-oxide, 2,2′-dithiodipyridine-1,1′-dioxide and related derivatives, as well as their metal complexes exhibit numerous biochemical applications. [29][30][31] 1-Oxopyridinium-2-thioacetic acid (OPTAH) has been known 32 for several years. However, its coordination chemistry remains relatively unexplored.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal syntheses and single crystal structural characterization of M(H2O)6(OPTA)2 [M = Co(II), Ni(II), Zn(II); OPTA = 1-oxopyridinium-2-thioacetato]

et al. 2006

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A new class of compounds of the family M(H 2 O) 6 (OPTA) 2 (where M = Co(II), Ni(II), and Zn(II); OPTA = 1-oxopyridinium-2-thioacetato) was prepared from the appropriate metal acetates, 1-oxopyridinium-2-thioacetic acid (OPTAH), and potassium hydroxide in hydrothermal media and structurally characterized. The structure is constructed from M(H 2 O) 6 2+ and two anions of OPTAH (C 7 H 6 NO 3 S) linked through hydrogen bonding into an extended network.

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A novel coordination mode for oxygen: preparation and properties of (NBun4)2[V4O(edt)2Cl8] containing a square planar oxide bridge

Cited by 44 publications

References 1 publication

Functional polyoxometalates from solvothermal reactions of VOSO₄ with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

Functional polyoxometalates from solvothermal reactions of VOSO₄ with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

The Ni(II) Complex of 2-Hydroxy-Pyridine-N-Oxide 2-Isothionate: Synthesis, Characterization, Biological Studies, and X-ray Crystal Structures using (1) Cu Kα Data and (2) Synchrotron Data

Hydrothermal syntheses and single crystal structural characterization of M(H2O)6(OPTA)2 [M = Co(II), Ni(II), Zn(II); OPTA = 1-oxopyridinium-2-thioacetato]

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A novel coordination mode for oxygen: preparation and properties of (NBun4)2[V4O(edt)2Cl8] containing a square planar oxide bridge

Cited by 44 publications

References 1 publication

Functional polyoxometalates from solvothermal reactions of VOSO4 with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

Functional polyoxometalates from solvothermal reactions of VOSO4 with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

The Ni(II) Complex of 2-Hydroxy-Pyridine-N-Oxide 2-Isothionate: Synthesis, Characterization, Biological Studies, and X-ray Crystal Structures using (1) Cu Kα Data and (2) Synchrotron Data

Hydrothermal syntheses and single crystal structural characterization of M(H2O)6(OPTA)2 [M = Co(II), Ni(II), Zn(II); OPTA = 1-oxopyridinium-2-thioacetato]

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Functional polyoxometalates from solvothermal reactions of VOSO₄ with tripodal alkoxides – a study on the reactivity of different “tris” derivatives

Functional polyoxometalates from solvothermal reactions of VOSO₄ with tripodal alkoxides – a study on the reactivity of different “tris” derivatives