Electronic structures and properties of MAu and MOH, where M = Tl and element 113

Pershina, V.; Anton, J.; Jacob, Timo

doi:10.1016/j.cplett.2009.08.069

Cited by 33 publications

(56 citation statements)

References 37 publications

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“…The same trend should be expected in the case of deposition of the heavier group 13 monohydroxides on quartz surfaces [25]. Predictions obtained from quantum chemical calculations of E113 adsorption [27] corroborate these suggestions. An accurate prediction of the element 113 volatility in elemental state or as hydroxide remains difficult, though.…”

Section: Discussionsupporting

confidence: 75%

Gas chromatography of indium in macroscopic and carrier-free amounts using quartz and gold as stationary phases

Serov

Eichler²,

Dressler

et al. 2011

Radiochimica Acta

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Summary. The chemical investigation of E113 is likely to become soon feasible. The determination of chemical properties of carrier-free amounts of the lighter homologues of element 113, especially indium and thallium, allows designing experimental set-ups and selecting experimental conditions suitable for performing these studies. Here, we present investigations of the interaction of indium species with quartz and gold surfaces. Deposition temperatures as well as enthalpies of adsorption were determined for indium T dep = 739 ± 20• C (−∆H ads (In) = 227 ± 10 kJ mol −1 ) and for indium hydroxide T dep = 250 ± 20• C (−∆H ads (InOH) = 124 ± 10 kJ mol −1 ) respectively, on quartz. In case of adsorption of indium on a gold surface only a lower limit of the deposition temperature was established T dep > 980• C (−∆H ads (In) ≥ 315 ± 10 kJ mol −1 ). Investigations of macroscopic amounts of indium in thermosublimation experiments at similar experimental conditions were instrumental to establish a tentative speciation of the observed indium species.

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Section: Discussionsupporting

confidence: 75%

Gas chromatography of indium in macroscopic and carrier-free amounts using quartz and gold as stationary phases

Serov

Eichler²,

Dressler

et al. 2011

Radiochimica Acta

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“…The enthalpy of adsorption of elemental thallium on a gold surface was deduced as ΔH Au ads (Tl) = −279 ± 6 kJ mol −1 . in fair agreement with scalar relativistic calculations [12,13] yielding a maximum Au 16 −Tl binding energy of 256 kJ/mol and CCSD(T) caclculations [14] yielding a dissociation energy for the Tl−Au molecule of 257 kJ/mol and with earlier Eichler-Miedema adsorption model calculations [15,16], where −215 kJ/mol were estimated for the Au−Tl adsorption interaction. Series of experiments with pure oxygen resulted in the deposition of thallium species at a signifi- • C related to an adsorption enthalpy ΔH Au ads (TlO x H y ) = −145 ± 3 kJ mol −1 (Fig.…”

Section: Thermochromatographic Experiments With 200 Tl On Gold As Stasupporting

confidence: 67%

“…bromine. On the other hand, in group 13 the stabilization of the oxidation state +1 is observed from Al to Tl, nonetheless due to relativistic effects [12][13][14]. Additional experiments were preformed to assign the observed deposition peak to a certain thallium species.…”

Section: Thermochromatographic Experiments With 200 Tl On Gold As Stamentioning

confidence: 99%

Adsorption interaction of carrier-free thallium species with gold and quartz surfaces

Serov

Eichler²,

Dressler

et al. 2013

Ract

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Thallium / Thallium hydroxide / Adsorption / Thermochromatography / SublimationSummary. The adsorption interactions of thallium and its compounds with gold and quartz surfaces were investigated. Carrier-free amounts of thallium were produced in nuclear fusion reactions of alpha particles with thick gold targets. The method chosen for the studies was gas thermochromatography and varying the redox potential of the carrier gases. It was observed that thallium is extremely sensitive to trace amounts of oxygen and water, and can even be oxidized by the hydroxyl groups located on the quartz surface. The experiments on a quartz surface with O 2 , He, H 2 gas in addition with water revealed the formation and deposition of only one thallium species -TlOH. The adsorption enthalpy was determined to be ΔH SiO 2 ads (TlOH) = −134 ± 5 kJ mol −1 . A series of experiments using gold as stationary surface and different carrier gases resulted in the detection of two thallium species -metallic Tl (H 2 as carrier gas) and TlOH (O 2 , O 2 + H 2 O and H 2 + H 2 O as pure carrier gas or carrier gas mixture) with ΔH Au ads (Tl) = −270 ± 10 kJ mol −1 and ΔH Au ads (TlOH) = −146 ± 3 kJ mol −1 . These data demonstrate a weak interaction of TlOH with both quartz and gold surfaces. The data represent important information for the design of future experiments with the heavier homologue of Tl in group 13 of the periodic table -element 113 (E113).

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“…The obtained information on the interaction of astatine with gold is sufficient for evaluating the adsorption energy for single atoms of elemental Nh on the same surface using semi-empirical relations [24,25,26]. These relations are based on the assumption, that for homologs M, the difference between the dissociation energy of the MAu molecule and the binding energy of the corresponding M − Au n system remains nearly the same, independent of the cluster size n and the adsorption position.…”

Section: Structure Of At − Au N Complexesmentioning

confidence: 99%

Adsorption of the astatine species on a gold surface: A relativistic density functional theory study

Demidov

Zaitsevskii

2018

Chemical Physics Letters

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Electronic structures and properties of MAu and MOH, where M = Tl and element 113

Cited by 33 publications

References 37 publications

Gas chromatography of indium in macroscopic and carrier-free amounts using quartz and gold as stationary phases

Gas chromatography of indium in macroscopic and carrier-free amounts using quartz and gold as stationary phases

Adsorption interaction of carrier-free thallium species with gold and quartz surfaces

Adsorption of the astatine species on a gold surface: A relativistic density functional theory study

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