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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Persson, Ingmar
Swedish University of Agricultural Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2020Solution chemistry in the surface region of aqueous solutionscitations
- 2019Chemical equilibria of aqueous ammonium-carboxylate systems in aqueous bulk, close to and at the water-air interfacecitations
- 2016Self-assembled SnO2 micro- and nanosphere-based gas sensor thick films from an alkoxide-derived high purity aqueous colloid precursorcitations
- 2015The structures of CyMe4-BTBP complexes of americium(III) and europium(III) in solvents used in solvent extraction, explaining their separation propertiescitations
- 2015The structures of CyMe4-BTBP complexes of americium(III) and europium(III) in solvents used in solvent extraction, explaining their separation propertiescitations
- 2014Speciation and structure of lead(II) in hyper-alkaline aqueous solutioncitations
- 2012Crystal Structures of [Hg10(dmso)16](ClO4)10 and [Hg2(H2O)2](ClO4)2citations
- 2010Structural Study of the N,N’-Dimethylpropyleneurea Solvated Lanthanoid(III) Ions in Solution and Solid State with an Analysis of the Ionic Radii of Lanthanoid(III) Ionscitations
- 2008Fenton-Induced Degradation of Polyethylene Glycol and Oak Cellulose. A Model Experiment in Comparison to Changes Observed in Conserved Waterlogged Woodcitations
- 2008Structure of solvated mercury(II) halides in liquid ammonia, triethyl phosphite and tri-n-butylphosphine solutioncitations
- 2007X-Ray Absorption Fine Structure Spectroscopic Studies of Octakis-(dimethylsulfoxide)lanthanoid(III) Complexes in Solution and in the Solid Iodidescitations
- 2006Crystal Structure of Lead(II) Acetylacetonate and the Structure of the Acetylacetone Solvated Lead(II) Ion in Solution Studied by Large Angle X-ray scatteringcitations
- 2004Structure of the Hydrated, Hydrolysed and Solvated Zirconium(IV) and Hafnium(IV) Ions in Water and Aprotic Oxygen Donor Solvents. A Crystallographic, EXAFS Spectroscopic and Large Angle X-ray Scattering Studycitations
- 2003Dimethyl Sulfoxide Solvates of the Aluminium(III), Gallium(III) and Indium(III) Ionscitations
- 2003A Structural Study of the Hydrated and the Dimethylsulfoxide, N,N’-Dimethyl-propyleneurea, Acetonitrile, Pyridine and N,N-Dimethylthioformamide Solvated Nickel(II) Ion Solution and Solid State
- 2003The discovery of the N,N-dimethylthioformamidium ion. A structural study of {(CH3)2NCHSH)}2[HfCl6] in solid state and solutioncitations
- 2001New Class of Oligonuclear Platinum-Thallium Compounds with a Direct Metal-Metal Bond. 5. Structure of Heterodimetallic Cyano Complexes in Aqueous Solution by EXAFS and Vibrational Spectroscopycitations
- 2001Crystal and Solution Structures of N,N-Dimethylthioformamide-Solvated Copper(I), Silver(I), and Gold(I) Ions Studied by X-ray Diffraction, X-ray Absorption, and Vibrational Spectroscopycitations
Places of action
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article
New Class of Oligonuclear Platinum-Thallium Compounds with a Direct Metal-Metal Bond. 5. Structure of Heterodimetallic Cyano Complexes in Aqueous Solution by EXAFS and Vibrational Spectroscopy
Abstract
The structures of three closely related heterodimetallic cyano complexes, [(NC)5Pt−Tl(CN)n]n- (n = 1−3), formed in reactions between [PtII(CN)4]2- and TlIII cyano complexes, have been studied in aqueous solution. Multinuclear NMR data (205Tl, 195Pt, and 13C) were used for identification and quantitative analysis. X-ray absorption spectra were recorded at the Pt and Tl LIII edges. The EXAFS data show, after developing a model describing the extensive multiple scattering within the linearly coordinated cyano ligands, short Pt−Tl bond distances in the [(NC)5Pt−Tl(CN)n]n- complexes: 2.60(1), 2.62(1), and 2.64(1) Å for n = 1−3, respectively. Thus, the Pt−Tl bond distance increases with increasing number of cyano ligands on the thallium atom. In all three complexes the thallium atom and five cyano ligands, with a mean Pt−C distance of 2.00−2.01 Å, octahedrally coordinate the platinum atom. In the hydrated [(NC)5Pt−Tl(CN)(H2O)4]- species the thallium atom coordinates one cyano ligand, probably as a linear Pt−Tl−CN entity with a Tl−C bond distance of 2.13(1) Å, and possibly four loosely bound water molecules with a mean Tl−O bond distance of about 2.51 Å. In the [(NC)5Pt−Tl(CN)2]2- species, the thallium atom probably coordinates the cyano ligands trigonally with two Tl−C bond distances at 2.20(2) Å, and in [(NC)5Pt−Tl(CN)3]3- Tl coordinates tetrahedrally with three Tl−C distances at 2.22(2) Å. EXAFS data were reevaluated for previously studied mononuclear thallium(III)−cyano complexes in aqueous solution, [Tl(CN)2(H2O)4]+, [Tl(CN)3(H2O)], and [Tl(CN)4]-, and also for the solid K[Tl(CN)4] compound. A comparison shows that the Tl−C bond distances are longer in the dinuclear complexes [(NC)5Pt−Tl(CN)n]n- (n = 1−3) for the same coordination number. Relative oxidation states of the metal atoms were estimated from their 195Pt and 205Tl chemical shifts, confirming that the [(NC)5Pt−Tl(CN)n]n- complexes can be considered as metastable intermediates in a two-electron-transfer redox reaction from platinum(II) to thallium(III). Vibrational spectra were recorded and force constants from normal-coordinate analyses are used for discussing the delocalized bonding in these species.