The Chemistry of the Metal Oxalato Complexes.

Krishnamurty, Kotra V.; Harris, G. M.

doi:10.1021/cr60211a001

Cited by 178 publications

(77 citation statements)

References 166 publications

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“…The oxalato ligand has long played an important role in coordination chemistry [15]. It is easily isolated in the form of a white hygroscopic solid by acid-base neutralization of oxalic acid (H 2 C 2 O 4 ) with the tetramethylammonium hydroxide (TMNOH) in absolute ethanol [16].…”

Section: Resultsmentioning

confidence: 99%

<b>The synthesis and the reactivity of arene ruthenium oxalato complexes</b>

Ndiaye

Dieng

Faye

et al. 2008

Bull. Chem. Soc. Eth.

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Section: Resultsmentioning

confidence: 99%

<b>The synthesis and the reactivity of arene ruthenium oxalato complexes</b>

Ndiaye

Dieng

Faye

et al. 2008

Bull. Chem. Soc. Eth.

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“…The lability of the tris(oxa1ato) complexes of trivalent metals follows the trend of A1 > Fe > Cr > Co > Ir, which has been established by stability constant, rate of racemization, and ligand exchange measurements (14). The lack of such an analogous trend indicates that the mechanism of the Pfeiffer effect in these systems may be quite complicated.…”

Section: Methodsmentioning

confidence: 89%

A Study of the Pfeiffer Effect in Systems containing Trisoxalatometallate(III) Complexes and Cinchonine Hydrochloride

Kan¹,

Brewer²

1971

Can. J. Chem.

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The Pfeiffer effect was studied in systems containing cinchonine hydrochloride and trisoxalatometallate(II1) complexes of Al, Fe, Cr, Co, and Ir. The Pfeiffer rotatory dispersion curves of the Cr and Co complexes show Cotton effects analogous to that observed in the optical rotatory dispersion (0.r.d.) curves of the respective complexes. The source of the Pfeiffer effect in all these systems is attributed either to an association between the complex ion and the optically active species in solution alone, as in the case of the Ir(lI1) complex, or to a combination of this association and an "equilibrium shift" between the two enantiomers in solution in favor of one of them, as in the case of the other complexes under investigation.

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“…These complexes can be obtained with the dissolution of hydrated niobium oxide in an aqueous oxalic acid solution, followed by a treatment with a suitable salt. The first niobium complexes were obtained from the alkali metals and were named mono, bus and tris(oxalate) niobate (Khrishnamurty and Harris, 1961). Mathern et al (1969), determined the structure of monohydrated ammonium oxotris(oxalate) niobate.…”

Section: Introductionmentioning

confidence: 99%

The thermal decomposition of monohydrated ammonium oxotris (oxalate) niobate

Medeiros

Moura

Silva

et al. 2006

Braz. J. Chem. Eng.

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-The thermal decomposition in argon of the monohydrated ammonium tris(oxalate)niobate, (NH 4 ) 3 NbO(C 2 O 4 ) 3 .H 2 O, has been studied by TG/DTG, DTA, DSC, IR absorption and XRD. The material decomposes stepwise by the release of CO, CO 2 , NH 3 and water. The atomic structure of the complex initially becomes amorphous and then crystallizes twice in the form of orthorhombic and monoclinic niobium pentoxide.

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The Chemistry of the Metal Oxalato Complexes.

Cited by 178 publications

References 166 publications

<b>The synthesis and the reactivity of arene ruthenium oxalato complexes</b>

<b>The synthesis and the reactivity of arene ruthenium oxalato complexes</b>

A Study of the Pfeiffer Effect in Systems containing Trisoxalatometallate(III) Complexes and Cinchonine Hydrochloride

The thermal decomposition of monohydrated ammonium oxotris (oxalate) niobate

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