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Journal articles on the topic 'Oxalate complexes'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Aplin, R., A. J. Feitz, and T. D. Waite. "Effect of Fe(III)-ligand properties on effectiveness of modified photo-Fenton processes." Water Science and Technology 44, no. 5 (2001): 23–30. http://dx.doi.org/10.2166/wst.2001.0243.

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This paper examines a modified photo-Fenton (UV/Fe oxalate/H2O2 process. The degradation of oxalate in this system in the absence of Reactive Red 235 was studied using both experimentation and kinetic modelling. The degradation of Reactive Red 235 in this system was also studied. Light intensity and solution pH had large effects on the degradation of both oxalate and Reactive Red 235, with the effect of pH not due simply to speciation changes. The most important properties of the oxalate ligand in the UV/Fe oxalate/H2O2 process are that it forms Fe(III)-oxalato complexes that are easily photol

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2

A., K. BANERJEE, SATYA PRAKASH SHEO, and K. ROY S. "Metal Complexes as Ligands. Polynuclear Alkali Metal Complexes with Diaquomonooxalato-nickel(ll) and -cobalt(ll)." Journal of Indian Chemical Society Vol. 62, Nov 1985 (1985): 818–20. https://doi.org/10.5281/zenodo.6324806.

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Chemistry Department, Patna University, Patna-800 005 Polymeric octahedral, diaquomonooxalato-nickel(II) and -cobalt(II) (Ni/Co(ox). 2H<sub>2</sub>O] have been used as 'metal complex ligands' in the synthesis of oxygen-bridged binuclear alkali metal complexes of the general formula [(M<sub>b</sub>L).M<sub>a</sub>ox.2H<sub>2</sub>O], <em>where </em>M<sub>b</sub> =Li, Na and K ; L=deprotonated organic acids ; M<sub>a</sub>= Ni or Co ; and ox=oxalate. In these binuclear alkali metal transition metal oxalates, the C=O frequencies have been observed only below 1 650 cm<sup>-1</sup> sug

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3

Farrell, RP, and PA Lay. "13C N.M.R. Spectroscopic Studies on the Reactions of Vanadium(V) With 13C2-Labeled Oxalate in Aqueous and 50% v/v Aqueous Acetic Acid Solutions." Australian Journal of Chemistry 48, no. 4 (1995): 763. http://dx.doi.org/10.1071/ch9950763.

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13 C n.m.r, spectroscopy has been used to study the reactions of vanadate , H2VO4-, with 13C2-labelled oxalate in aqueous and 50% v/v aqueous acetic acid media. The results of the aqueous system corroborate the natural abundance oxalate 13C n.m.r. studies of Ehde and coworkers ( Ehde, P.M., Petterson , L., and Glaser, J., Acta Chem. Scand., 1991, 45, 998) who report the formation of both mono( oxalato )-, [VO2(ox)(OH2)] - , and bis(oxalato)-vanadium(V), cis-[VO2(ox)2]3-, complexes in solution. At 270 K, pH 3.3, and an n.m.r. operating frequency of 100.16 MHz, the former complex appears as a si

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4

Furukawa, T., and Y. Takahashi. "Oxalate metal complexes in aerosol particles: implications for the hygroscopicity of oxalate-containing particles." Atmospheric Chemistry and Physics 11, no. 9 (2011): 4289–301. http://dx.doi.org/10.5194/acp-11-4289-2011.

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Abstract. Atmospheric aerosols have both a direct and an indirect cooling effect that influences the radiative balance at the Earth's surface. It has been estimated that the degree of cooling is large enough to weaken the warming effect of carbon dioxide. Among the cooling factors, secondary organic aerosols (SOA) play an important role in the solar radiation balance in the troposphere as SOA can act as cloud condensation nuclei (CCN) and extend the lifespan of clouds because of their high hygroscopic and water soluble nature. Oxalic acid is an important component of SOA, and is produced via s

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5

Xiong, Yongliang, and Yifeng Wang. "Uranyl oxalate species in high ionic strength environments: stability constants for aqueous and solid uranyl oxalate complexes." Radiochimica Acta 109, no. 3 (2021): 177–85. http://dx.doi.org/10.1515/ract-2020-0083.

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Abstract Uranyl ion, UO2 2+, and its aqueous complexes with organic and inorganic ligands can be the dominant species for uranium transport on the Earth surface or in a nuclear waste disposal system if an oxidizing condition is present. As an important biodegradation product, oxalate, C2O4 2−, is ubiquitous in natural environments and is known for its ability to complex with the uranyl ion. Oxalate can also form solid phases with uranyl ion in certain environments thus limiting uranium migration. Therefore, the determination of stability constants for aqueous and solid uranyl oxalate complexes

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6

Ferri, Diego, Mauro Iuliano, Carla Manfredi, et al. "Dioxouranium(VI) oxalate complexes †." Journal of the Chemical Society, Dalton Transactions, no. 19 (2000): 3460–66. http://dx.doi.org/10.1039/b006544g.

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7

Furukawa, T., and Y. Takahashi. "Metal complexation inhibits the effect of oxalic acid in aerosols as cloud condensation nuclei (CCN)." Atmospheric Chemistry and Physics Discussions 10, no. 11 (2010): 27099–134. http://dx.doi.org/10.5194/acpd-10-27099-2010.

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Abstract. Atmospheric aerosols have both a direct and an indirect cooling effect that influences the radiative balance at the Earth's surface. It has been estimated that the degree of cooling is large enough to cancel the warming effect of carbon dioxide. Among the cooling factors, secondary organic aerosols (SOA) play a key role in the solar radiation balance in the troposphere as SOA can act as cloud condensation nuclei (CCN) and extend the lifespan of clouds because of their high hygroscopic and water soluble nature. Oxalic acid is one of the major components of SOA, and is produced via sev

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8

Chandra, N. R., M. M. Prabu, J. Venkatraman, S. Suresh, and M. Vijayan. "X-ray Studies on Crystalline Complexes Involving Amino Acids and Peptides. XXXIII. Crystal Structures of L- and DL-Arginine Complexed with Oxalic Acid and a Comparative Study of Amino Acid–Oxalic Acid Complexes." Acta Crystallographica Section B Structural Science 54, no. 3 (1998): 257–63. http://dx.doi.org/10.1107/s0108768197011543.

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The DL- and L-arginine complexes of oxalic acid are made up of zwitterionic positively charged amino acid molecules and semi-oxalate ions. The dissimilar molecules aggregate into separate alternating layers in the former. The basic unit in the arginine layer is a centrosymmetric dimer, while the semi-oxalate ions form hydrogen-bonded strings in their layer. In the L-arginine complex each semi-oxalate ion is surrounded by arginine molecules and the complex can be described as an inclusion compound. The oxalic acid complexes of basic amino acids exhibit a variety of ionization states and stoichi

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9

A., K. BANERJEE, SATYA PRAKASH SHEO, and K. ROY S. "Metal Complexes as Ligand. Binuclear Alkali Metal Complexes with Nickel Ethylenediamine Oxalate and Cobalt Ethylenediamine Oxalate." Journal of Chemical Indian Society Vol. 65, May 1988 (1988): 378–79. https://doi.org/10.5281/zenodo.6280110.

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Chemistry Department, Patna University, Patna.-800 005 <em>Manuscript received 24 November 1986, revised 1 March 1988, accepted 17 March 1988</em> Metal Complexes as Ligand. Binuclear Alkali Metal Complexes with Nickel Ethylenediamine Oxalate and Cobalt Ethylenediamine Oxalate.

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10

Xue, Xiao Fei, Yan Xiang Liu, Yan Qing Shao, and Nan Sheng Deng. "Rapid Decolorization of Rhodamine B by UV/Fe(III)-Penicillamine Process under Neutral pH: Compared with UV/Fe(III)-Oxalate." Advanced Materials Research 183-185 (January 2011): 130–34. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.130.

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This study investigated the decolorization of Rhodamine B by the UV/Fe(III)-Oxalate and UV/Fe(III)-Penicillamine process under neutral pH. Fe(III)-Penicillamine complexes showed much higher photoactivity than that of Fe(III)-Oxalate complexes. The efficiency for decolorization of Rhodamine B at pH 5.0 was 59% and 88% in Fe(III)-Oxalate and Fe(III)-Penicillamine complexes aqueous solution after 60 min irradiation, respectively, whereas, 35% and 57% was achieved at pH 7.0. Compared to the Fe(III)/Oxalate system, the kinetic constants kapp (min-1) for Rhodamine B decolorization in Fe(III)/Penicil

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11

Liu, Chen, та Khalil A. Abboud. "Crystal structures of μ-oxalato-bis[azido(histamine)copper(II)] and μ-oxalato-bis[(dicyanamido)(histamine)copper(II)]". Acta Crystallographica Section E Crystallographic Communications 71, № 11 (2015): 1379–83. http://dx.doi.org/10.1107/s2056989015019908.

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The title compounds, μ-oxalato-κ4O1,O2:O1′,O2′-bis[[4-(2-aminoethyl)-1H-imidazole-κ2N3,N4](azido-κN1)copper(II)], [Cu2(C2O4)(N3)2(C5H9N3)2], (I), and μ-oxalato-κ4O1,O2:O1′,O2′-bis[[4-(2-aminoethyl)-1H-imidazole-κ2N3,N4](dicyanamido-κN1)copper(II)], [Cu2(C2O4)(C2N3)2(C5H9N3)2], (II), are two oxalate-bridged dinuclear copper complexes. Each CuIIion adopts a five-coordinate square-pyramidal coordination sphere where the basal N2O2plane is formed by two O atoms of the oxalate ligand and two N atoms of a bidentate chelating histamine molecule. The apical coordination site in compound (I) is occupie

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12

Beattie, J. W., D. S. White, A. Bheemaraju, P. D. Martin, and S. Groysman. "Recyclable chemosensor for oxalate based on bimetallic complexes of a dinucleating bis(iminopyridine) ligand." Dalton Trans. 43, no. 21 (2014): 7979–86. http://dx.doi.org/10.1039/c4dt00577e.

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13

Glodjovic, Verica, Milan Joksovic, and Srecko Trifunovic. "The geometrical isomers of oxalato and malonato-(ethylenediamine-N,N’-di-S,S-2-propionato)-chromate(III) complexes." Journal of the Serbian Chemical Society 70, no. 1 (2005): 1–7. http://dx.doi.org/10.2298/jsc0501001g.

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Three octahedral chromium(III) complexes of the general formula Na[Cr(S,S-eddp)L].2H2O, where eddp = the tetradentate O-N-N-O-type ligand ethylenediamine-N,N?-di-S,S-2-propionate and L = a bidentate O-O-type ligand, either oxalate or malonate, were prepared. The complexes were synthesized by the reaction of chromium(III) chloride, S,S-eddp and malonic acid or sodium oxalate, at 60?C. The complexes were isolated chromatographically and the geometric configuration of the complexes was proposed on the basis of their infrared and electronic absorption spectra.

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14

Vekeman, Jelle, Javier Torres, Cristina Eugenia David, et al. "In Search of an Efficient Complexing Agent for Oxalates and Phosphates: A Quantum Chemical Study." Nanomaterials 11, no. 7 (2021): 1763. http://dx.doi.org/10.3390/nano11071763.

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Limiting gastrointestinal oxalate absorption is a promising approach to reduce urinary oxalate excretion in patients with idiopathic and enteric hyperoxaluria. Phosphate binders, that inhibit gastrointestinal absorption of dietary phosphate by the formation of easily excretable insoluble complexes, are commonly used as a treatment for hyperphosphatemia in patients with end-stage renal disease. Several of these commercially available phosphate binders also have affinity for oxalate. In this work, a series of metallic cations (Li+, Na+, Mg2+, Ca2+, Fe2+, Cu2+, Zn2+, Al3+, Fe3+ and La3+) is inves

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15

Kherfi, Hamza, Mohamed Al Amine Benhacine, and Malika Hamadene. "A novel layered structure of the heterometallic oxalate compound [NH₂(CH₃)₂]₂[NaFe(C₂O₄)₃]·0.33NH(CH₃)₂·0.33H₂O: synthesis, crystal structure and thermal decomposition." Acta Crystallographica Section C Structural Chemistry 80, no. 12 (2024): 798–805. http://dx.doi.org/10.1107/s2053229624011185.

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The synthesis, single-crystal X-ray structure determination and thermal analysis are reported for a novel heteronuclear oxalate compound synthesized from a mixture of Fe and Na salts, oxalic acid and N,N-dimethylformamide (DMF) in aqueous solution. The new metallooxalate compound was obtained and identified as a dimethylammonium tris(oxalato)ferrate(III), namely, poly[[bis(dimethylammonium) [tri-μ-oxalato-sodium(I)iron(III)]]–dimethylamine–water (3/1/1)], [NH2(CH3)2]2[NaFe(C2O4)3]·0.33NH(CH3)2·0.33H2O, which crystallizes in the orthorhombic noncentrosymmetric space group C2221. In this novel s

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16

Köferstein, Roberto. "Synthesis, structures, thermal and magnetic properties of two bis(oxalato)cuprate(II) hybrid salts containing pyridinium derivative cations." Journal of Molecular Structure 1203 (March 1, 2020): 127399. https://doi.org/10.1016/j.molstruc.2019.127399.

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Two bis(oxalato)cuprate(II) hybrid salts, (C5H7N2)2[Cu(C2O4)2]·2H2O (1) and (C7H11N2)2[Cu(C2O4)2]·5H2O (2) (C5H7N2 = 3-aminopyridinium; C7H11N2 = 2-amino-4,6- dimethylpyridinium) have been synthesized and characterized by elemental and thermal analyses, IR and UV-Vis spectroscopies, single-crystal X-ray diffraction, and SQUID magnetometry. The polymeric anionic motifs in the two salts are significantly different. In 1, stacking of [Cu(C2O4)2]2- units through axial Cu···O contacts (2.890 Å) yields straight Cu(II) chains, with a prolate CuO6 octahedron ar

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17

Oliveira, Willian X. C., Cynthia L. M. Pereira, Carlos B. Pinheiro, Francesc Lloret, and Miguel Julve. "Towards oxalate-bridged iron(ii), cobalt(ii), nickel(ii) and zinc(ii) complexes through oxotris(oxalato)niobate(v): an open air non-oxidizing synthetic route." Inorganic Chemistry Frontiers 5, no. 6 (2018): 1294–306. http://dx.doi.org/10.1039/c8qi00191j.

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Oxalate release by [Nb<sup>V</sup>O(C<sub>2</sub>O<sub>4</sub>)<sub>3</sub>]<sup>3–</sup> is a suitable strategy to prepare oxalate-bridged dimetal(ii) complexes that exhibit antiferromagnetic interactions.

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18

Willauer, Aurélien R., Davide Toniolo, Farzaneh Fadaei-Tirani, Yan Yang, Maron Laurent, and Marinella Mazzanti. "Carbon dioxide reduction by dinuclear Yb(ii) and Sm(ii) complexes supported by siloxide ligands." Dalton Transactions 48, no. 18 (2019): 6100–6110. http://dx.doi.org/10.1039/c9dt00554d.

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Low-coordinate dinuclear lanthanide complexes supported by siloxides effect the reduction of carbon dioxide to both carbonate and oxalate, but the cooperative binding of CO2 to the two Ln(ii) cations in the dimer favours oxalate formation.

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19

Bocharova, Irina, and Galina Kunshina. "WATER-SOLUBLE GERMANIUM COMPLEXES FOR THE SYNTHESIS OF Li1.5Al0.5Ge1.5(PO4)3 SOLID ELECTROLYTE." Transaction Kola Science Centre 15, no. 1 (2024): 79–86. https://doi.org/10.37614/2949-1215.2024.15.1.012.

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Water-soluble citrate and oxalate complexes of germanium (IV) were obtained. Thermal decomposition of citrate and oxalate precursors of a solid electrolyte of Li1.5Al0.5Ge1.5(PO4)3 (LAGP) composition with NASICON structure has been studied using DSC/TG, XRD and IR-spectroscopy. The use of the LAGP oxalate precursor ensures the formation of a monophase product at 650°C with ionic conductivity at 4,2∙10-4 S/cm at room temperature

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20

C. Anbarasi, S. Kokila, and K. Saravanan. "Spectral and Thermal Studies on Bivalent Transition Metal Complexes of Oxalic Acid with Morpholine." Journal of Environmental Nanotechnology 7, no. 3 (2018): 18–21. http://dx.doi.org/10.13074/jent.2018.09.183318.

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Morpholinium transition metal oxalates of the formula (MorpH)2[MII(ox)2 (H2O)2].2H2O, where M = Co, Ni have been prepared by the reaction of respective metal nitrates with aqueous solution of morpholinium oxalate salts in appropriate mole ratios. These compounds have been characterized by various physico-chemical techniques like elemental analysis, conductance measurements, UV-Vis, IR, TG-DTA, XRD and SEM studies. The elemental analysis confirms the desired composition of the complexes. Conductance measurements show that all the complexes behave as 2:1 electrolytes, augmenting the non-coordina

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21

S., BALASUBRAMANIAN. "Thermal Studies on Iron(II) Complexes with Polypyridine and Dicarboxylic Acid Ligands." Journal of Indian Chemical Society Vol. 75, Mar 1998 (1998): 156–57. https://doi.org/10.5281/zenodo.5915637.

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Education & Training Division, Central Leather Research Institute, Adyar, Chennai-600 020 <em>Manuscript received 18 July 1996, revised 17 June 1997, accepted 25 June 1997</em> The mixed ligand complexes of iron(II) which exhibit spin equilibrium have been synthesized by the reaction of ferrous sulfate with polypyridine ligand (phenlbpy) and sodium oxalate. The thermograms indicate that the dehydration of the complexes is followed by the elimination of the oxalate and then polypyridine ligand. The <strong>DSC</strong> of both the complexes exhibit two endotherms corresponding to the dehydr

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22

Pricop, Laurentiu, Ioana Cristina Marincas, Anamaria Hanganu, Mihaela Ganciarov, Augustin M. Mădălan, and Maria Olimpia Miclăuș. "Complexes of Cd(II) with Nicotinamide, Nitrate, and Oxalate as Mixed Ligands: Synthesis, Characterization, and Biological Activity." Crystals 15, no. 2 (2025): 140. https://doi.org/10.3390/cryst15020140.

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Three complexes of Cd(II), [Cd(NA)₂(NO₃)₂(H₂O)₂] (1), [Cd(NA)₂(NO₃)₂(H₂O)₂]·2NA (2), and [Cd(ox)(NA)(H₂O)]·H₂O (3) (NA = nicotinamide, ox = oxalate) were synthesized and characterized. Complexes (1) and (2) are mononuclear, while complex (3) is a bidimensional polymeric coordination compound, with oxalate anions bridging metal ions in two different ways: µ₂ bis-bidentate chelating manner and µ₄ bis-bidentate bis-monodentate manner. The stereochemistry of Cd(II) in compounds (1) and (3) is a distorted pentagonal bipyramid, while in compound (2) it is a regular octahedron. Complexes (1) and (2)

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23

Chen, Sheng-Chun, Feng Tian, Ming-Yang He, and Qun Chen. "Syntheses, Crystal Structures and Luminescent Properties of Two Isostructural Fluorinated Metal–organic Frameworks Based on Mixed 2,3,5,6-tetrafluoro-1,4-bis(imidazole-1-yl-methyl)Benzene and Oxalate Ligands." Journal of Chemical Research 40, no. 12 (2016): 763–66. http://dx.doi.org/10.3184/174751916x14794636571574.

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Two isostructural fluorinated metal-organic frameworks [M(Fbix)(ox)]n (where M = Zn or Mn, Fbix = 2,3,5,6-tetrafluoro-1,4-bis(imidazole-1-yl-methyl)benzene, ox = oxalate) have been synthesised from Fbix and oxamide under hydrothermal conditions, where oxalate is generated by the in situ hydrolysation of oxamide. The complexes are isostructural and display similar two-dimensional undulating sql nets formed by pillaring the one-dimensional [M(ox)]n chains through Fbix linkers. Their solid-state fluorescence spectra indicate a ligand-based emission for both complexes.

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24

PAGÉ, F., and C. R. DE KIMPE. "DISSOLUTION DES COMPOSÉS FERRUGINEUX ET ALUMINEUX DES HORIZONS B PODZOLIQUES DE SOLS DU QUÉBEC PAR LE DITHIONITE-CITRATE-BICARBONATE, L'OXALATE, LE PYROPHOSPHATE ET LE TÉTRABORATE." Canadian Journal of Soil Science 69, no. 3 (1989): 451–59. http://dx.doi.org/10.4141/cjss89-047.

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Organic matter, Fe and Al were determined in dithionite-citrate-bicarbonate (d), oxalate (o), pyrophosphate (p) and tetraborate (t) extracts from Quebec Podzolic B horizons in order to evaluate the ability of these reagents to extract the organo-metallic complexes as well as inorganic oxides and hydroxides, and to verify the appropriateness of soil classification criteria. Dithionite solubilized most of the Fe whereas oxalate extracted most of the Al compounds; the ability of the same reagents to extract Al and Fe, respectively, was directly related to the amount of organo-metallic complexes.

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25

MAHMOUD, A. GHANDOUR, MANSOUR HESHAM, H. M. ABU EL·WAFA MOUSTAFA, and KHODARY MAHMOUD. "Polarographic Determination of the Formation Constants of Copper(II) and lron(III) Ternary Complexes with Pyruvate and Oxalate or Citrate." Journal of Indian Chemical Society Vol. 65, Dec 1988 (1988): 827–30. https://doi.org/10.5281/zenodo.6085918.

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Chemistry Department, Faculty of Science, Assiut University Chemistry Department, Faculty of Science at Qena, Qena, Egypt<strong> </strong> <em>Manuscript received 7 April 1988, accepted 28 August 1988</em> The stability constants of binary and ternary complexes of Cu<sup>ll</sup> and Fe<sup>III</sup> with oxalate or citrate as primary ligand and pyruvate as secondary ligand have been determined polarographically. The formed complexes are Cu(Ox)(Pyr), Cu(Ox)(Pyr)<sub>2</sub>, Cu(Ox)<sub>2</sub>(Pyr), Fe(Ox)(Pyr)<sub>2</sub> and Fe(Ox),(Pyr). For the citrate— pyruvate system the comp

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26

Androš Dubraja, Lidija, Marijana Jurić, Filip Torić, and Damir Pajić. "The influence of metal centres on the exchange interaction in heterometallic complexes with oxalate-bridged cations." Dalton Transactions 46, no. 35 (2017): 11748–56. http://dx.doi.org/10.1039/c7dt02522j.

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A series of complexes with [{M(phen)<sub>2</sub>}<sub>2</sub>(μ-C<sub>2</sub>O<sub>4</sub>)]<sup>2+</sup> cations (M = Mn, Co, Ni, Cu, and Zn) and bis(oxalate)chromium(iii) anions is synthesised. Magnetic exchange interactions mediated through oxalate bridge in the homodinuclear cations have been discussed.

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27

Gopal, Meera, and Sreesha Sasi. "Synthesis and Structural Characterization of Lanthanum(III) Complexes of 4-Nitrosoantipyrine." Asian Journal of Chemistry 33, no. 3 (2021): 617–21. http://dx.doi.org/10.14233/ajchem.2021.23047.

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A new series of La(III) complexes of the ligand with the general formula [La(L)2(a)3] and [La2(L)4(aa)3], (a = nitrate (1), thiocyanate (2), acetate (3) and propionate (4) ions, aa = sulphate (5), thiosulphate (6), oxalate (7) and malonate (8) ions with the ligand 4-nitrosoantipyrine (L) were synthesized and characterized using various physico-chemical studies. The primary ligand L acts as a bidentate ligand utilizing the carbonyl group and the nitroso group for bonding. The nitrate, thiocyanate, acetate and propionate ions are monovalent unidentate ligands, whereas sulphate, thiosulphate, oxa

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28

F, Daisy Selasteen, Alfred Cecil Raj S, and Alagappa Moses A. "SYNTHESIS AND CHARACTERIZATION IN VITRO ANTIMICROBIAL AND CYTOTOXICITY TESTING OF OXALIC ACID-DERIVED CADMIUM CHELATING AGENTS." International Journal of Pharmacy and Pharmaceutical Sciences 10, no. 7 (2018): 80. http://dx.doi.org/10.22159/ijpps.2018v10i7.26034.

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Objective: The aim of this study is to investigate the growth, structure, spectral, solubility and biological activity of sodium cadmium oxalate dehydrate (NaCdOx) and cadmium oxalate trihydrate (CdOx) crystals prepared by a single diffusion method in the silica gel medium.Methods: The present crystals were grown using single diffusion methods and tested for XRD, UV absorption (190 to 1100 mm) and solubility (distilled water at 20-29 °C) studies. The antimicrobial efficacy of the grown samples at various concentrations (25, 50, 75 and 100 μg/ml) was studied against Streptococcus, (G+Ve), Pseud

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29

Anderson, Gordon K., Gregg J. Lumetta, and Jeffrey W. Siria. "Photochemical reactions of diphosphineplatinum(II) oxalate complexes." Journal of Organometallic Chemistry 434, no. 2 (1992): 253–59. http://dx.doi.org/10.1016/0022-328x(92)83310-e.

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30

Schlosser, Dietmar, and Christine Höfer. "Laccase-Catalyzed Oxidation of Mn2+ in the Presence of Natural Mn3+ Chelators as a Novel Source of Extracellular H2O2 Production and Its Impact on Manganese Peroxidase." Applied and Environmental Microbiology 68, no. 7 (2002): 3514–21. http://dx.doi.org/10.1128/aem.68.7.3514-3521.2002.

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ABSTRACT A purified and electrophoretically homogeneous blue laccase from the litter-decaying basidiomycete Stropharia rugosoannulata with a molecular mass of approximately 66 kDa oxidized Mn2+ to Mn3+, as assessed in the presence of the Mn chelators oxalate, malonate, and pyrophosphate. At rate-saturating concentrations (100 mM) of these chelators and at pH 5.0, Mn3+ complexes were produced at 0.15, 0.05, and 0.10 μmol/min/mg of protein, respectively. Concomitantly, application of oxalate and malonate, but not pyrophosphate, led to H2O2 formation and tetranitromethane (TNM) reduction indicati

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31

Fang, Xiaolong, Chunyan Zhang, Jin Chen, Hongping Zhu, and Youzhu Yuan. "Synthesis and catalytic performance of ruthenium complexes ligated with rigid o-(diphenylphosphino)aniline for chemoselective hydrogenation of dimethyl oxalate." RSC Advances 6, no. 51 (2016): 45512–18. http://dx.doi.org/10.1039/c6ra00320f.

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32

Kim, H. K., K. Jeong, H. R. Cho, E. C. Jung, K. Kwak, and W. Cha. "Spectroscopic speciation of aqueous Am(iii)–oxalate complexes." Dalton Transactions 48, no. 27 (2019): 10023–32. http://dx.doi.org/10.1039/c9dt01087d.

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33

Akgul, Ayfer, and Ali Akgul. "Mycoremediation of copper: Exploring the metal tolerance of brown rot fungi." BioResources 13, no. 3 (2018): 7155–71. http://dx.doi.org/10.15376/biores.13.3.akgul.

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In recent decades, fungal roles in bioremediation of toxic contaminants such as potentially toxic elements (PTEs) residing in soil, waste water, and landfills have been studied. Bioremediation is an alternative way to deal with toxic contaminants in the environment. Some decay fungi are able to remove metals by producing metabolites, such as oxalate, which can react with metal ions and generate insoluble forms of metal:crystal complexes. Brown-rot fungi have the ability to produce extracellular oxalate in significant amounts, and this is closely related to chelation of copper by precipitating

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34

Benmansour, Samia, and Carlos J. Gómez-García. "The Peter Day Series of Magnetic (Super)Conductors." Magnetochemistry 7, no. 7 (2021): 93. http://dx.doi.org/10.3390/magnetochemistry7070093.

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Here, we review the different series of (super)conducting and magnetic radical salts prepared with organic donors of the tetrathiafulvalene (TTF) family and oxalato-based metal complexes (ox = oxalate = C2O42−). Although most of these radical salts have been prepared with the donor bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF = ET), we also include all the salts prepared with other TTF-type donors such as tetrathiafulvalene (TTF), tetramethyl-tetrathiafulvalene (TM-TTF), bis(ethylenediseleno)tetrathiafulvalene (BEST), bis(ethylenedithio)tetraselenafulvalene (BETS) and 4,5-bis((2S)-2-hydroxy

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35

Tsoureas, Nikolaos, Ludovic Castro, Alexander F. R. Kilpatrick, F. Geoffey N. Cloke, and Laurent Maron. "Controlling selectivity in the reductive activation of CO2 by mixed sandwich uranium(iii) complexes." Chem. Sci. 5, no. 10 (2014): 3777–88. http://dx.doi.org/10.1039/c4sc01401d.

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The uranium complexes [U(η<sup>8</sup>-C<sub>8</sub>H<sub>6</sub>(1,4-SiMe<sub>3</sub>)<sub>2</sub>)(η<sup>5</sup>-Cp<sup>Me4R</sup>)] can be tuned to selectively reduce CO<sub>2</sub>, giving U(iv) complexes incorporating bridging oxo, carbonate, or oxalate groups.

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36

Royappa, A. Timothy, Andrew D. Royappa, Raphael F. Moral, et al. "Copper(I) oxalate complexes: Synthesis, structures and surprises." Polyhedron 119 (November 2016): 563–74. http://dx.doi.org/10.1016/j.poly.2016.09.043.

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37

Si, Shufeng, Chunhui Li, Ruji Wang, and Yadong Li. "Ternary oxalate-bridged lanthanide complexes from hydrothermal reactions." Journal of Molecular Structure 703, no. 1-3 (2004): 11–17. http://dx.doi.org/10.1016/j.molstruc.2004.05.009.

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38

Krulic, D., N. Larabi, and N. Fatouros. "Voltamperometric study of the titanium IV–oxalate complexes." Journal of Electroanalytical Chemistry 579, no. 2 (2005): 239–42. http://dx.doi.org/10.1016/j.jelechem.2005.02.010.

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39

Jun, Li, Zhang Feng-Xing, Ren Yan-Wei, Hun Yong-Qian, and Nan Ye-Fei. "Thermal kinetic TG-analysis of metal oxalate complexes." Thermochimica Acta 406, no. 1-2 (2003): 77–87. http://dx.doi.org/10.1016/s0040-6031(03)00221-1.

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40

Anderson, J. E., C. P. Murphy, J. Real, J. Balué, and J. C. Bayón. "Electron transfer properties of rhodium(I) oxalate complexes." Inorganica Chimica Acta 209, no. 2 (1993): 151–60. http://dx.doi.org/10.1016/s0020-1693(00)85136-1.

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41

Reynolds, John R., Frank E. Karasz, C. Peter Lillya, and James C. W. Chien. "Electrically conducting transition metal complexes of tetrathio-oxalate." Journal of the Chemical Society, Chemical Communications, no. 5 (1985): 268. http://dx.doi.org/10.1039/c39850000268.

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42

Larenkov, Bubenschikov, Makichyan, Zhukova, Krasnoperova, and Kodina. "Preparation of Zirconium-89 Solutions for Radiopharmaceutical Purposes: Interrelation Between Formulation, Radiochemical Purity, Stability and Biodistribution." Molecules 24, no. 8 (2019): 1534. http://dx.doi.org/10.3390/molecules24081534.

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Zirconium-89 is a promising radionuclide for nuclear medicine. The aim of the present work was to find a suitable method for obtaining zirconium-89 solutions for radiopharmaceutical purposes. For this purpose, the ion exchange behavior of zirconium-89 solutions was studied. Radio-TLC (thin layer chromatography) and biodistribution studies were carried out to understand speciation of zirconium-89 complexes and their role in the development of new radiopharmaceuticals. Three methods of zirconium-89 isolation were studied using ZR (hydroxamate) and Chelex-100 resins. It was found that ZR-resin al

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43

Maiwald, M. M., M. Trumm, K. Dardenne, J. Rothe, A. Skerencak-Frech, and P. J. Panak. "Speciation, thermodynamics and structure of Np(v) oxalate complexes in aqueous solution." Dalton Transactions 49, no. 38 (2020): 13359–71. http://dx.doi.org/10.1039/d0dt02379e.

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44

Zhang, Ye, Zhen-An Qiao, Junmin Liu, et al. "Ti(iv) oxalate complex-derived hierarchical hollow TiO2 materials with dye degradation properties in water." Dalton Transactions 45, no. 1 (2016): 265–70. http://dx.doi.org/10.1039/c5dt03291a.

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This work demonstrates the transformation of Ti(iv) oxalate complexes to hierarchical hollow titania nanostructures by a hydrothermal process and investigates the catalytic properties of the final products for dye degradation.

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45

Watts, Harry, and Yee-Kwong Leong. "Predicting the Logarithmic Distribution Factors for Coprecipitation into an Organic Salt: Selection of Rare Earths into a Mixed Oxalate." Minerals 10, no. 8 (2020): 712. http://dx.doi.org/10.3390/min10080712.

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Thermodynamic modelling of a leaching system that involves concurrent precipitation depends on an understanding of how the metals distribute into the precipitate before an assessment of solubility can be made. It has been suggested in the past that a pair of rare earths (A and B) in solution will separate from each other by oxalate precipitation according to a logarithmic distribution coefficient (λ), determined by the kinetics of the precipitation. By contrast, the present study hypothesises that λ may be approximated from thermodynamic terms, including the solubility product (KSp) of each ra

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46

Muthuppalani, M., Ahmed Al Otaibi, S. Balasubramaniyan, et al. "Synthesis, Characterization and Bio-Potential Activities of Co(II) and Ni(II) Complexes with O and N Donor Mixed Ligands." Crystals 12, no. 3 (2022): 326. http://dx.doi.org/10.3390/cryst12030326.

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The synthesis and characterization of Co(II) and Ni(II) mixed ligand complexes are derived from isoniazid, 9-fluorenoneandoxalate. The metal complexes were characterized on the basis of elemental analysis, IR, UV-visible, CV, PXRD, and molar conductance analytical data, viz., all the metal complexes were suggested in an octahedral geometry, respectively. The mixed ligand complexes are formed in the 1:1:2:1 (M:L1:L2:L3) ratios, as found from the elemental analyses, and originate to have the formula [M(L1)(L2)2(L3)]. Where M = Co(II), Ni(II), L1 = isoniazid, L2 = 9-fluorenone, and L3 = oxalate.

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47

Anderson, Gordon K., and Gregg J. Lumetta. "Reactions of diphosphineplatinum(II) oxalate complexes with phenylacetylene. Formation of phenylalkynylplatinum complexes." Journal of Organometallic Chemistry 295, no. 2 (1985): 257–64. http://dx.doi.org/10.1016/0022-328x(85)80277-1.

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48

Nakamura, T., T. Yoshimura, A. Nakatani, and C. Miyake. "Magnetic susceptibilities of lanthanide(III)-CMPO complexes and lanthanide(III) oxalate complexes." Journal of Alloys and Compounds 192, no. 1-2 (1993): 303–5. http://dx.doi.org/10.1016/0925-8388(93)90256-m.

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49

Hazlehurst, Richard J., Kyle R. Pellarin, Matthew S. McCready, and Richard J. Puddephatt. "Oxidation of dimethylplatinum(II) complexes with malonyl peroxide derivatives." Canadian Journal of Chemistry 93, no. 1 (2015): 74–81. http://dx.doi.org/10.1139/cjc-2014-0212.

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The reaction of the cyclic peroxides cyclobutane malonoyl peroxide and cyclopentane malonoyl peroxide to dimethylplatinum(II) complexes with the bidentate nitrogen donor ligand 4,4′-di-t-butyl-2,2′-bipyridine (bubpy) gave a mixture of the products of cis and trans oxidative addition, [PtMe2{(O2C)2C(C3H6)}(bubpy)] and [PtMe2{(O2C)2C(C4H8)}(bubpy)], respectively. The cis isomers exist with a chelating dicarboxylate ligand, forming a six-membered ring, while the trans isomers are thought to exist as oligomers, which may react with water or solvent to give complexes containing a monodentate dicarb

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50

Pilný, Radomír, Přemysl Lubal, and Lars I. Elding. "Thermodynamics for complex formation between palladium(ii) and oxalate." Dalton Trans. 43, no. 32 (2014): 12243–50. http://dx.doi.org/10.1039/c4dt01062k.

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