Supramolecular-jack-like guest in ultramicroporous crystal for exceptional thermal expansion behaviour
書誌事項
- 公開日
- 2015-04-21
- 資源種別
- journal article
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1038/ncomms7917
- 公開者
- Springer Science and Business Media LLC
説明
<jats:title>Abstract</jats:title><jats:p>The dynamic behaviours of host frameworks and guest molecules have received much attention for their great relevance with smart materials, but little has been developed to control or understand the host–guest interplay. Here we show that the confined guest can utilize not only molecular static effects but also bulk dynamic properties to control the host dynamics. By virtue of the three-dimensional hinge-like framework and quasi-discrete ultramicropores, a flexible porous coordination polymer exhibits not only drastic guest-modulation effect of the thermal expansion magnitude (up to 422 × 10<jats:sup>−6</jats:sup> K<jats:sup>−1</jats:sup>) and even the anisotropy but also records positive/negative thermal expansion coefficients of +482/−218 × 10<jats:sup>−6</jats:sup> K<jats:sup>−1</jats:sup>. Moreover, single-crystal X-ray diffraction analyses demonstrate that the jack-like motion of the guest supramolecular dimers, being analogous to the anisotropic thermal expansion of bulk van der Waals solids, is crucial for changing the flexibility mode and thermal expansion behaviour of the crystal.</jats:p>
収録刊行物
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- Nature Communications
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Nature Communications 6 (1), 6917-, 2015-04-21
Springer Science and Business Media LLC
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詳細情報 詳細情報について
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- CRID
- 1360565166757796608
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- ISSN
- 20411723
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
