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Online Gas Adsorption Chromatography with Tl on Fused Silica for Next-Generation Chemistry Experiments with Nhстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или ScopusДата последнего поиска статьи во внешних источниках: 22 апреля 2026 г.
- Авторы: Jennifer Marie Wilson, Dressler Rugard, Aksenov Nikolay Viktorovich, Albin Yuri Valerianovich, Asfari Zouhair, Bodrov Alexander Yurievich, Bozhikov Gospodin Apostolov, Chepigin Victor Ivanovich, Chuprakov Iliya, Dmitriev Sergey Nikolaevich, Eichler Robert, Gall Benoît, Gustova Natalia Sergeevna, Herrmann Dominik, Isaev Andrei Vladimirovich, Madumarov Alexander Shavkatovich, Malyshev Oleg Nikolaevich, Pishchalnikova Elizaveta Vasilievna, Popov Yuri Anatolievich, Sabelnikov Alexei Valentinovich, Svirikhin Alexander Igorevich, Voronuk Marina Gennadievna, Yeremin Alexander Vladimirovich, Zobnin Vladislav, Steinegger Patrick
- Журнал: Inorganic Chemistry
- Том: 64
- Номер: 49
- Год издания: 2025
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 23810
- Последняя страница: 23824
- DOI: 10.1021/acs.inorgchem.5c02244.
- Аннотация: Presented here are comprehensive online gas adsorption chromatography experiments with thallium on fused silica surfaces toward an unambiguous chemical characterization of nihonium (Nh, Z = 113). Short-lived 184Tl (t1/2 = 10.1 ± 5 s), produced in the nuclear fusion-evaporation reaction 141Pr(48Ti, 5n)184Tl, was velocity-separated and introduced into the chemistry setup mounted in the focal plane of the separator. Isothermal gas adsorption chromatography experiments with a fused silica stationary phase at different dehydroxylation stages revealed a strong influence on the yield of transported Tl species. The evaluated adsorption enthalpies of the presumed monohydroxide TlOH of – ΔHadsd-SiO2(TlOH) = 127 ± 3 kJ/mol (dehydroxylated SiO2) and −ΔHadsh-SiO2(TlOH) = 132 ± 12 kJ/mol (hydroxylated SiO2) agree well with earlier offline experiments. In the case of a dehydroxylated stationary phase, the chemical speciation of Tl shifted from TlOH to less volatile species TlX2 with −ΔHadsd-SiO2(TlX2) ≥197 kJ/mol. The presented findings highlight the central role of the fused silica stationary phase in order to promote the formation of a defined chemical species of heavy Group 13 elements Tl and potentially Nh. The outcome is compared to state-of-the-art theoretical predictions.
- Добавил в систему: Пищальникова Елизавета Васильевна