Quantum-chemical simulation of molecular hydrogen abstraction from the ZnMg(BH4)4 · 4NH3 bicationic complex
- Авторлар: Zyubin A.S.1, Zyubina T.S.1, Kravchenko O.V.1,2, Solovev M.V.1, Vasiliev V.P.1,2, Zaitsev A.A.1, Shikhovtsev A.V.1,2, Dobrovol’sky Y.A.1,2
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Мекемелер:
- Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
- Center of Hydrogen Energy (Sistema PJSFC)
- Шығарылым: Том 70, № 7 (2025)
- Беттер: 927-944
- Бөлім: ТЕОРЕТИЧЕСКАЯ НЕОРГАНИЧЕСКАЯ ХИМИЯ
- URL: https://freezetech.ru/0044-457X/article/view/689602
- DOI: https://doi.org/10.31857/S0044457X25070092
- EDN: https://elibrary.ru/JOJEEN
- ID: 689602
Дәйексөз келтіру
Аннотация
Within the framework of the cluster approach using the 6-31G* basis set and the hybrid density functional (B3LYP), was modeled successive abstraction of H2 from the [ZnMg(BH4)4 4NH3] and [Zn2Mg2(BH4)8⋅8NH3] complexes. It was found that to start the dehydrogenation process, it is necessary to overcome the energy barrier of ~1.25 eV, then the process proceeds with the release of energy until about 70% of the available H2 is extracted, for a higher degree of conversion additional energy costs will be required. The cleavage of H2 molecules occurs through a number of intermediate structures of varying complexity with the significant participation of metal cations and the formation of fragments of chains based on B-N bonds containing fragments of N-H and B-H, which can be detected by IR spectroscopy, when dehydrogenation is stopped.
Толық мәтін

Авторлар туралы
A. Zyubin
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432
T. Zyubina
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432
O. Kravchenko
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Center of Hydrogen Energy (Sistema PJSFC)
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432; Chernogolovka, Moscow region, 142432
M. Solovev
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432
V. Vasiliev
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Center of Hydrogen Energy (Sistema PJSFC)
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432; Chernogolovka, Moscow region, 142432
A. Zaitsev
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432
A. Shikhovtsev
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Center of Hydrogen Energy (Sistema PJSFC)
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432; Chernogolovka, Moscow region, 142432
Yu. Dobrovol’sky
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Center of Hydrogen Energy (Sistema PJSFC)
Email: aszyubin@bk.ru
Ресей, Chernogolovka, Moscow region, 142432; Chernogolovka, Moscow region, 142432
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