2019年
Borohydride-containing coordination polymers: Synthesis, air stability and dehydrogenation
Chemical Science
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- 巻
- 10
- 号
- 24
- 開始ページ
- 6193
- 終了ページ
- 6198
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1039/c9sc00731h
- 出版者・発行元
- Royal Society of Chemistry ({RSC})
© 2019 The Royal Society of Chemistry. Control of the reactivity of hydride (H-) in crystal structures has been a challenge because of its strong electron-donating ability and reactivity with protic species. For metal borohydrides, the dehydrogenation activity and air stability are in a trade-off, and control of the reactivity of BH4- has been demanded. For this purpose, we synthesize a series of BH4--based coordination polymers/metal-organic frameworks. The reactivity of BH4- in the structures is regulated by coordination geometry and neighboring ligands, and one of the compounds [Zn(BH4)2(dipyridylpropane)] exhibits both high dehydrogenation reactivity (1.4 wt% at 179 °C) and high air stability (50 RH% at 25 °C, 7 days). Single crystal X-ray diffraction analysis reveals that Hδ+⋯Hδ- dihydrogen interactions and close packing of hydrophobic ligands are the key for the reactivity and stability. The dehydrogenation mechanism is investigated by temperature-programmed desorption, in situ synchrotron PXRD and solid-state NMR.
- リンク情報
- ID情報
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- DOI : 10.1039/c9sc00731h
- ISSN : 2041-6520
- eISSN : 2041-6539
- ORCIDのPut Code : 57667575
- SCOPUS ID : 85067683826