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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
Structure of solvated mercury(II) halides in liquid ammonia, triethyl phosphite and tri-n-butylphosphine solution
Abstract
Liquid ammonia, trialkyl phosphites, and especially trialkylphosphines, are very powerful electron-pair donor solvents with soft bonding character. The solvent molecules act as strongly coordinating ligands towards mercury(II), interacting strongly enough to displace halide ligands. In liquid ammonia mercury(II) chloride solutions separate into two liquid phases; the upper contains tetraamminemercury(II) complexes, [Hg(NH3)4]2+, and chloride ions in low concentration, while the lower is a dense highly concentrated solution of [Hg(NH3)4]2+ entities, ca. 1.4 mol dm−3, probably ion-paired by hydrogen bonds to the chloride ions. Mercury(II) bromide also dissociates to ionic complexes in liquid ammonia and forms a homogeneous solution for which 199Hg NMR indicates weak bromide association with mercury(II). When dissolving mercury(II) iodide in liquid ammonia and triethyl phosphite solvated molecular complexes form in the solutions. The Raman m(I–Hg–I) symmetric stretching frequency is 132 cm−1 for the pseudo-tetrahedral [HgI2(NH3)2] complex formed in liquid ammonia, corresponding to DS = 56 on the donor strength scale. For the Hg(ClO4)2/NH4I system in liquid ammonia a 199Hg NMR study showed [HgI4]2− to be the dominating mercury(II) complex for mole ratios n(I−) : n(Hg2+) ≥ 6. A large angle X-ray scattering (LAXS) study of mercury(II) iodide in triethyl phosphite solution showed a [HgI2(P(OC4H9)3)2] complex with the Hg–I and Hg–P bond distances 2.750(3) and 2.457(4) Å, respectively, in near tetrahedral configuration. Trialkylphosphines generally form very strong bonds to mercury(II), dissociating all mercury(II) halides.Mercury(II) chloride and bromide form solid solvated mercury(II) halide salts when treated with tri-n-butylphosphine, because of the low permittivity of the solvent. A LAXS study of a melt of mercury(II) iodide in tri-n-butylphosphine at 330 K resulted in the Hg–I and Hg–P distances 2.851(3) and 2.468(4) Å , respectively. The absence of a distinct I–I distance indicates flexible coordination geometry with weak and non-directional mercury(II) iodide association within the tri-n-butylphosphine solvated complex.