Výsledky vyhledávání - "Bieluonwu Augustus Uzoukwu"

Physicochemical Profile Studies of Soil Along the Banks of Ubu River in Ekwusigo and Nnewi Local Government Areas of Anambra State of Nigeria

Autor: Okiemute Rosa Onomake, Bieluonwu Augustus Uzoukwu

Publikováno v: Annali di Chimica. 95:95-104

A physicochemical profile study on the soil along the banks of the Ubu river that runs across Ekwusigo and Nnewi Local Government Areas (LGA) of Anambra State of Nigeria was investigated for possible evidence of industrial waste disposal by the vario

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fb8d934b6ceed1b5fd8e4bbee6450fd
https://doi.org/10.1002/adic.200590011

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Synthesis and X-Ray Diffraction Studies of Bis(4-propanoyl-2,4-dihydro-5-methyl-2-phenyl-3 H-pyrazol-3-onato) Dioxomolybdenum(VI) and [4-(1-trichloro-2-ethoxy)propanoyl-2,4-dihydro5-methyl-2-phenyl-3 H-pyrazol-3-onato][4-trichloroacetyl-2,4-dihydro5-methyl-2-phenyl-3 H-pyrazol-3-onato] Dioxomolybdenum(VI)

Autor: Karsten Gloe, Otto Rademacher, Bieluonwu Augustus Uzoukwu

Publikováno v: Zeitschrift für anorganische und allgemeine Chemie. 627:108-113

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1977862a08535ac02f0e87e8f6369c3
https://doi.org/10.1002/1521-3749(200101)627:1<108::aid-zaac108>3.0.co

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Molybdenum(VI), Uranium(VI) and Vanadium(V) Complexes of 4-Acylbis(L-Phenyl-3-Methylpyrazolone-5): Synthesis and Spectroscopic Characterization

Autor: K. Gloeb, P. U. Adiukwu, Bieluonwu Augustus Uzoukwu

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 30:433-443

The synthesis and characterization of metal complexes of 4-adipoyl and 4-sebacoyl derivatives of bis(l-phenyl-3-methylpyrazolone-5) with Mo(VI), U(VI) and V(V) are reported. Analytical and spectroscopic data show that the complexes are neutral and co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee22c94165471ddf0be99cf61f287338
https://doi.org/10.1080/00945710009351772

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Metal(III) Complexes of 4-acylbis(L-phenyl-3-methyl-pyrazolone-5): Synthesis and Spectroscopic Studies

Autor: Patricia U. Adiukwu, Bieluonwu Augustus Uzoukwu, Karsten Gloe

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 30:335-346

La(III), Y(III) and Fe(III) complexes of 4-acylbis(l-phenyl-3-methyl-pyrazolone-5) were synthesised and characterised spectroscopically. Y(III) and Fe(III) reacted with the ligands in the metal:lig...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6696af24768b5eb910eccd89b91dd440
https://doi.org/10.1080/00945710009351766

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Kinetic Studies of the Solvent Extraction of UO2(II) and Hg(II) with 4-Sebacoylbis(1-phenyl-3-methylpyrazolone-5) in Chloroform

Autor: Karsten Gloe, Helmut Duddeck, Bieluonwu Augustus Uzoukwu

Publikováno v: ract. 83:69-74

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46b78059d41fd5a4999ee195b0b81227
https://doi.org/10.1524/ract.1998.83.2.69

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4-Acylpyrazoloneiminjz Schiff Bases and Their Metal Complexes: Synthesis and Spectroscopic Studies

Autor: H. Duddeck, Karsten Gloe, Bieluonwu Augustus Uzoukwu

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 28:819-831

Copper(II) and nickel(II) complexes with selected N,N'-ethylenebis(1-phenyl-3-methyl-4-acylpyrazoloneimine) ligands were synthesised and characterised spectroscopically. Molar conductivity measurements for the complexes in DMF indxate that the comple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f26b89d832e67aa2d1ca40f2e973672
https://doi.org/10.1080/00945719809349384

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Separation of U(VI) from V(V) and Extraction-Spectrophotometric Analysis of V(V) with 4-Acylbis(1-phenyl-3-methylpyrazolones-5)

Autor: Karsten Gloe, Helmut Duddeck, Bieluonwu Augustus Uzoukwu

Publikováno v: ract. 81:33-38

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::625605af7107b4cfe726d787760316fe
https://doi.org/10.1524/ract.1998.81.1.33

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Square and Bicapped Trigonal Antiprismatic Thorium(IV) Tetrakis(1-Phenyl-3-Methyl-4-Acylpyrazol-5-Onoate) Complexes: Synthesis and Spectroscopic Studies

Autor: Bieluonwu Augustus Uzoukwu, Patricia U. Adiukwu

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 27:509-518

Thorium tetrakis (1-phenyl-3-methyl-4-acylpyrazol-5-onoates) have been synthesised and characterized spectros-copically using UV, IR and 13C NMR spectroscopy. IR spectral data showed a stereochemically differing CO-Th bonding system present in some o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::437b89d80fc02a0825b7ace529dfcff5
https://doi.org/10.1080/00945719708000206

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Metal-Nitrogen Bonding in 1-Phenyl-3-Methyl-4-Acylpyrazolone-5 Complexes of Lead(II): Synthesis and Spectroscopic Studies

Autor: Patricia U. Adiukwu, Bieluonwu Augustus Uzoukwu

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 27:187-195

Synthesis, electronic, infrared and NMR spectral studies were carried out on a series of 4-acyl-3-methyl-1-phenylpyrazolone-5 complexes of lead(II). They showed that both Pb-O and Pb-N bonds were present in the complexes. Subsequently, the complexes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3792f7741bb40476c1d766ccbf8dff62
https://doi.org/10.1080/00945719708000145

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Adducp Coordination in U(VI) Complexes of 4-Actl Derivatives of 1-Pkenyl-3-Msthyl-Pyrazolone-5: UV, IR and NMR Spectral Studies

Autor: Emmanuel Chukwuemeka Okafor, Bieluonwu Augustus Uzoukwu

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 23:85-95

Uranyl complexes with the general molecular formula UO2L2(H2O)2 have been synthesised where L = 1-phenyl-3-methyl-4-acyl-pyrazolone-5 anion. IR and NMR spectral studies suggest that the complexes are monoaquobis(1-phenyl-3-methyl-4-acyl–pyrazolonat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3eaccdb0bc1f1d1f6798d66ae572b61
https://doi.org/10.1080/15533179308016619

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