Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1002/anie.202208247

Аннотация: <jats:title>Abstract</jats:title><jats:p>Under cold pressure sp<jats:sup>1</jats:sup>/sp<jats:sup>2</jats:sup>-to-sp<jats:sup>3</jats:sup> hybridization transformation has been exclusively observed in covalent or molecular crystals overwhelmingly above ≈10 GPa, and the approaches to lower the transition pressure are limited on exteПоказать полностьюrnal heat-treatment and/or catalyzers. Herein we demonstrate that, by internal-lattice stress-transfer from ionic to covalent groups, the transformation can be significantly prompted, as shown in a crystal of LiBO<jats:sub>2</jats:sub> under 2.85 GPa for the first case in ionic crystals. This unprecedentedly low transformation pressure is ascribed to the enhanced localized stress on covalent B−O frames transferred from ionic Li−O bonds in LiBO<jats:sub>2</jats:sub>, and accordingly the corresponding structural feature is summarized. This work provides an internal structural regulation strategy for pressure-reduction of the s-p orbital hybridization transformation and extends the sp<jats:sup>1</jats:sup>/sp<jats:sup>2</jats:sup>-to-sp<jats:sup>3</jats:sup> transformation landscape from molecular and covalent compounds to ionic systems.</jats:p>

Журнал: Angewandte Chemie International Edition

Выпуск журнала: Т. 61, № 44

ISSN журнала: 14337851

Издатель: Wiley Interscience

• Jiang Xingxing (Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China)
• Molokeev Maxim S. (Siberian Federal University Krasnoyarsk 660041 Russia)
• Wang Naizheng (University of Chinese Academy of Sciences Beijing 100049 China)
• Wang Yonggang (School of Materials Science and Engineering Peking University Beijing 100871 China)
• Wen Ting (Center for High Pressure Science &amp; Technology Advanced Research Beijing 100094 China)
• Dong Zhichao (Laboratory of Space Astronomy and Technology National Astronomical Observatories Chinese Academy of Sciences Beijing 100101 China)
• Liu Youquan (University of Chinese Academy of Sciences Beijing 100049 China)
• Li Wei (School of Materials Science and Engineering TKL of Metal and Molecule-Based Material Chemistry Nankai University Tianjin 300350 China)
• Lin Zheshuai (University of Chinese Academy of Sciences Beijing 100049 China)

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