Soluble selenides and tellurides

Ansari, Mohammad A.; Ibers, James A.

doi:10.1016/0010-8545(90)85011-g

Cited by 261 publications

(56 citation statements)

References 141 publications

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“…Molybdenum ions show antagonistic function with regard to copper in humans and animals [6][7][8][9]. Molybdenum-copper complexes or tungstencopper complexes combining polyfunctional ligands constitute an interesting system of research due to their diverse structural chemistry [10,11] and their relevance to biological systems [12,13]. Besides such importance of copper either alone or in combination with molybdenum in biological system, copper plays a significant role in combination with other metals such as zinc and iron in the active sites of several enzymes.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a binuclear copper(II) complex [Cu(H₂slox)]₂ from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Kumar

Lal

Chanu

et al. 2011

Journal of Coordination Chemistry

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The binuclear copper complex [Cu(H 2 slox)] 2 (1) and heterobinuclear copper and molybdenum complexes [Cu(slox)MoO 2 (A) 2 ] (slox ¼ tetranegative disalicylaldehyde oxaloyldihydrazone) (A ¼ H 2 O (2), py (3), 2-pic (4), 3-pic (5), 4-pic (6)) and [Cu(slox)MoO 2 (NN)] (NN ¼ bpy (7) and phen (8)) have been synthesized from disalicylaldehyde oxaloyldihydrazone in methanol and characterized by various physico-chemical and spectroscopic techniques. The stoichiometry of the complexes has been established based on elemental analyses and thermoanalytical studies. The m eff values for the complexes rule out metal-metal interaction between the metal centers in the structural unit of the complexes. The dihydrazone has keto-enol forms; in 1, it is a dibasic tetradentate bridging ligand in enol form and in heterobinuclear complexes as a tetrabasic hexadentate bridging ligand. Electronic spectra of the complexes show that copper(II) is square-planar in binuclear and heterobinuclear complexes; molybdenum is a distorted octahedral stereochemistry in heterobinuclear complexes. EPR spectra suggest that in all complexes, the unpaired electron is in the d x2Ày2 orbital of copper and that the copper in heterobinuclear complexes is tetrahedrally distorted.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a binuclear copper(II) complex [Cu(H₂slox)]₂ from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Kumar

Lal

Chanu

et al. 2011

Journal of Coordination Chemistry

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“…1989.24,243-252; M. Goodman, R. Rone, N. Manesis, M. Hassan, N. Mammi, Bivpolymers 1987, 26, S25-S32. [2] a) P. Pallai, M. Goodman, J. Chem. SOC.…”

mentioning

confidence: 99%

Synthesis and Structure of the Cluster [NaAu₁₂Se₈]³⁻: An Inorganic Cryptand Complex

Huang¹,

Kanatzidis²

1992

Angew. Chem. Int. Ed. Engl.

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A cube with twelve linearly coordinated gold atoms in the middle of the edges and eight trigonally coordinated selenium atoms at the corners is found in the structure of the title compound 1 (see right). A sodium ion is encapsulated in the center of the cube and interacts with the gold atoms. The (Et4N) 3 salt of this inorganic cryptand complex is formed in the reaction of AuCN and Na2Se in the presence of Et4NCl.

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“…Work in this area has been well summarized in a series of review articles that appeared in the 1990s [1][2][3][4][5] and since 2000. [6][7][8] However, although a vast array of these materials have been synthesized and characterized by X-ray crystallography and other techniques, most reaction mechanisms are not known and the actual identity of the polytelluride reagents in solution is not known with certainty, although they are frequently considered to be complex equilibrium mixtures.…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet-Visible Spectroscopic Investigation of Reaction of Rubidium and Tellurium in Liquid Ammonia Solution

Poindexter

Schultz

2013

Spectroscopy Letters

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The sequential reaction of tellurium with rubidium in liquid ammonia solution has been monitored by ultraviolet-visible spectroscopy. Reaction times for rubidium with tellurium in liquid ammonia were markedly slower than those of sodium and potassium, and the ''yellow phase'' intermediate was long lived and exhibited a peak at approximately 330 nm with a broad shoulder at about 440 nm. Species formed agree with those previously reported: Rb 2 Te, Rb 2 Te 2 , and Rb 2 Te 3 . Rb 2 Te 2 solution was a violet-blue with absorbance peaks at 285.8, 324.3, 358.0, and 560.0 nm. No evidence of disproportionation reactions for rubidium polytellurides in liquid ammonia was observed.

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Soluble selenides and tellurides

Cited by 261 publications

References 141 publications

Synthesis and characterization of a binuclear copper(II) complex [Cu(H₂slox)]₂ from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Synthesis and characterization of a binuclear copper(II) complex [Cu(H₂slox)]₂ from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Synthesis and Structure of the Cluster [NaAu₁₂Se₈]³⁻: An Inorganic Cryptand Complex

Ultraviolet-Visible Spectroscopic Investigation of Reaction of Rubidium and Tellurium in Liquid Ammonia Solution

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Soluble selenides and tellurides

Cited by 261 publications

References 141 publications

Synthesis and characterization of a binuclear copper(II) complex [Cu(H2slox)]2 from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Synthesis and characterization of a binuclear copper(II) complex [Cu(H2slox)]2 from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Synthesis and Structure of the Cluster [NaAu12Se8]3−: An Inorganic Cryptand Complex

Ultraviolet-Visible Spectroscopic Investigation of Reaction of Rubidium and Tellurium in Liquid Ammonia Solution

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Synthesis and characterization of a binuclear copper(II) complex [Cu(H₂slox)]₂ from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Synthesis and characterization of a binuclear copper(II) complex [Cu(H₂slox)]₂ from polyfunctional disalicylaldehyde oxaloyldihydrazone and its heterobinuclear copper(II) and molybdenum(VI) complexes

Synthesis and Structure of the Cluster [NaAu₁₂Se₈]³⁻: An Inorganic Cryptand Complex