The Use of Cupferron (Phenylnitroso-Hydroxyl-Amine Ammonium) In: I. The Quantitative Separation of Zirconium, Titanium, Iron, Manganese and Aluminum. Ii. The Analysis of Zircon and Baddeleyite.

Brown, James Meikle

doi:10.1021/ja02256a013

Cited by 20 publications

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“…There are more examples of the diazeniumdiolate group being bound to carbon than to any other element. One of the first chemical properties of this functional group to be discovered was the ability of Cupferron ( 5 ) to complex metal ions, which has led to its extensive use in analytical chemistry . While technically the name only applies to the ammonium salt of phenyldiazeniumdiolate, many similar compounds are described by invoking the Cupferron name. , Complexes form between C -diazeniumdiolates and a wide range of metal ions. − Such complexes have even been used in the purification of plutonium, and while a review of their chemistry is long overdue, a complete discussion of these materials is not included here since it is beyond the intended scope of this work.…”

Section: C-bound Diazeniumdiolates (Including Nitrosohydroxylamines)mentioning

confidence: 99%

Chemistry of the Nitric Oxide-Releasing Diazeniumdiolate (“Nitrosohydroxylamine”) Functional Group and Its Oxygen-Substituted Derivatives

2002

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Joseph A. Hrabie received his entire education in the New York City public school system, including his Ph.D. degree in Chemistry (1981) under the guidance of Professor William F. Berkowitz at Queens College of the City University of New York. After postdoctoral research with Professor Herbert O. House at the Georgia Institute of Technology, he moved to the National Cancer Institute at Frederick and is currently a Senior Scientist with SAIC−Frederick, the primary NCI contractor at the site. In addition to many scientific publications, his continuing interest in nitric oxide chemistry has resulted in 15 U.S. patents. Larry K. Keefer received his B.A. degree from Oberlin College and his Ph.D. degree in Chemistry (1965) under the guidance of Professor Gloria G. Lyle at the University of New Hampshire. He held research positions at the Chicago Medical School and the University of Nebraska College of Medicine before coming to the National Cancer Institute in 1971. He and his colleagues in the NCI's Chemistry Section, Laboratory of Comparative Carcinogenesis, are intensively studying the chemistry and pharmacology of the diazeniumdiolates as nitric oxide sources for biomedical applications.This section contains a description of reactions that are used preparatively as well as those that do not

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Section: C-bound Diazeniumdiolates (Including Nitrosohydroxylamines)mentioning

confidence: 99%

Chemistry of the Nitric Oxide-Releasing Diazeniumdiolate (“Nitrosohydroxylamine”) Functional Group and Its Oxygen-Substituted Derivatives

2002

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“…They are widely used in chemistry as analytical reagents for the extraction of many metals [1][2][3][4][5][6][7][8][9][10][11][12][13][14] and their spectrophotometric analysis [15], and as precursors for the synthesis of nanoparticles of metal oxides [16][17][18][19][20].…”

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“…EXPERIMENTAL Synthesis of complexes of tervalent d and p metals (Al 3+ , Cr 3+ , Fe 3+ ) with N-nitrozohydroxylamine derivatives was performed by the reaction between a corresponding metal chloride and KL [1][2][3][4][5] . In a typical reaction, an aqueous solution (5 mL) containing MCl 3 · nH 2 O (1 mmol) was added drop by drop to an aqueous solution (5 mL) containing KL 1-5 (3 mmol) under vigorous stirring (ratio M 3+ : L -= 1 : 3).…”

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Complexes of some tervalent metals with N-alkyl(benzyl)nitrozohydroxylamine derivatives

Kovalchukova

Namichemazi

Bostanabad

et al. 2016

Russ. J. Inorg. Chem.

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Twenty two new complexes of some tervalent metals (aluminum, chromium, iron, and lanthanides) with nitrozohydroxylamine N-alkyl(benzyl) derivatives · nH 2 O, (m = 1-5) were synthesized and isolated in a crystalline state. The crystal and molecular structures of the iron(III) complex with N-(2-fluorobenzyl)-N-nitrozohydroxylamine were determined by X-ray diffraction. An octahedral coordination of the central ion and a bidentate chelating coordination of the organic ligand were established. The spectral criteria of coordination of nitrozohydroxylamine alkyl(benzyl) derivatives were determined, and the complexation processes in solutions were studied.The compounds containing N-nitrozohydroxylamine moieties are good chelating reagents able of forming stable metal complexes with metals of various types. They are widely used in chemistry as analytical reagents for the extraction of many metals [1][2][3][4][5][6][7][8][9][10][11][12][13][14] and their spectrophotometric analysis [15], and as precursors for the synthesis of nanoparticles of metal oxides [16][17][18][19][20].

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“…The ammonium salt of N-nitroso-N-phenylhydroxylamine, is a well-known analytical reagent (cupferron) and it was very popular especially for analytical separations [1, 2]. The chelate-forming derivatives of this ligand is known to form stable complexes with various metals, but only few of them have been structurally characterized [3][4][5][6][7][8][9][10][11][12].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of tris(N-nitroso-N-oxyanilino-κ² O, O′) oxidoniobium(V), C₁₈H₁₅N₆O₇Nb

Belay

Koen

Venter

et al. 2016

Zeitschrift Für Kristallographie - New Crystal Structures

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CCDC no.: 1447423The crystal structure is shown in the gure. Tables 1-3 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters. Source of materialUnder atmospheric conditions, NbCl5 (0.27 g, 1 mmol) was dissolved in acetonitrile (10 mL), and treated with tetraethylammonium chloride (0.165 g, 1 mmol). The mixture was re uxed overnight at 90-100°C and the solvent was removed under vacuum. (0.2604 g, 1.68 mmol) at room temperature. The resulting mixture was stirred for 4 h, and then the volatile material was removed in vacuo. The resulting residue was washed with diethyl ether (2 × 10 mL), giving a grey solid and the solution was left to stand at 255 K for a few days after which red crystals were obtained. Atom Site Experimental detailsThe H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C-H = 0.98 Å and Uiso(H) = 1.2Ueq(C), respectively. The highest peak (2.37 e. Å −3 ) is located 1.07 Å from O4 and the deepest hole (−0.65 e. Å −3 ) is situated 0.69 Å from Nb1. DiscussionThe ammonium salt of N-nitroso-N-phenylhydroxylamine, is a well-known analytical reagent (cupferron) and it was very popular especially for analytical separations [1, 2]. The chelate-forming derivatives of this ligand is known to form stable complexes with various metals, but only few of them have been structurally characterized [3][4][5][6][7][8][9][10][11][12]. Also some cupferrates were investigated in our group [13][14][15][16][17][18]. This study forms part of ongoing research to investigate the mechanism of the reactions of O,O′-and N,O-bidentate ligands with transition metals used in nuclear industry, such as Hf, Zr, Nb,.In the title structure the Nb atom is heptacoordinated by six oxygen atoms, of three bidentate cupferron ligands and an oxido group. The cupferrate ligand forms a ve-membered ring with a small bite angle (see the gure). The Nb-O distances are between 1.7107 (5) and 2.2267 (7) Å, and the O-Nb-O angles vary between 68.36(2)°and 158.51(2)°. All the bond distances and angles are similar to other relevant niobium(V) structures [27,28].Acknowledgements: Financial assistance from the faculty

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The Use of Cupferron (Phenylnitroso-Hydroxyl-Amine Ammonium) In: I. The Quantitative Separation of Zirconium, Titanium, Iron, Manganese and Aluminum. Ii. The Analysis of Zircon and Baddeleyite.

Abstract: Theory for KzO on No. of mercial RCN KzO 92% RCN and 8% experiment. taken, g. found. g. KICOS basis, g.

Cited by 20 publications

References 0 publications

Chemistry of the Nitric Oxide-Releasing Diazeniumdiolate (“Nitrosohydroxylamine”) Functional Group and Its Oxygen-Substituted Derivatives

Chemistry of the Nitric Oxide-Releasing Diazeniumdiolate (“Nitrosohydroxylamine”) Functional Group and Its Oxygen-Substituted Derivatives

Complexes of some tervalent metals with N-alkyl(benzyl)nitrozohydroxylamine derivatives

Crystal structure of tris(N-nitroso-N-oxyanilino-κ² O, O′) oxidoniobium(V), C₁₈H₁₅N₆O₇Nb

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The Use of Cupferron (Phenylnitroso-Hydroxyl-Amine Ammonium) In: I. The Quantitative Separation of Zirconium, Titanium, Iron, Manganese and Aluminum. Ii. The Analysis of Zircon and Baddeleyite.

Abstract: Theory for KzO on No. of mercial RCN KzO 92% RCN and 8% experiment. taken, g. found. g. KICOS basis, g.

Cited by 20 publications

References 0 publications

Chemistry of the Nitric Oxide-Releasing Diazeniumdiolate (“Nitrosohydroxylamine”) Functional Group and Its Oxygen-Substituted Derivatives

Chemistry of the Nitric Oxide-Releasing Diazeniumdiolate (“Nitrosohydroxylamine”) Functional Group and Its Oxygen-Substituted Derivatives

Complexes of some tervalent metals with N-alkyl(benzyl)nitrozohydroxylamine derivatives

Crystal structure of tris(N-nitroso-N-oxyanilino-κ2 O, O′) oxidoniobium(V), C18H15N6O7Nb

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Crystal structure of tris(N-nitroso-N-oxyanilino-κ² O, O′) oxidoniobium(V), C₁₈H₁₅N₆O₇Nb