Directional Intermolecular Interactions for Precise Molecular Design of a High-Tc Multiaxial Molecular Ferroelectric
| العنوان: | Directional Intermolecular Interactions for Precise Molecular Design of a High-Tc Multiaxial Molecular Ferroelectric |
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| المؤلفون: | Jing Wang, Yin Rao, Yan-Ting Ding, Chen-Kai Yang, Yongfa Xie, Ren-Gen Xiong, Wei-Qiang Liao, Wennan Zou, Wang-Nan Chen |
| المصدر: | Journal of the American Chemical Society. 141:1781-1787 |
| بيانات النشر: | American Chemical Society (ACS), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Group (mathematics), Intermolecular force, Substituent, General Chemistry, Crystal structure, 010402 general chemistry, 01 natural sciences, Biochemistry, Ferroelectricity, Catalysis, 0104 chemical sciences, Crystallography, chemistry.chemical_compound, Colloid and Surface Chemistry, chemistry, Molecule, Polar, Orthorhombic crystal system |
| الوصف: | Quasi-spherical molecules have recently been developed as promising building blocks for constructing high-performance molecular ferroelectrics. However, although the modification of spherical molecules into quasi-spherical ones can efficiently lower the crystal symmetry, it is still a challenge to precisely arouse a low-symmetric polar crystal structure. Here, by introducing directional hydrogen-bonding interactions in the molecular modification, we successfully reduced the cubic centrosymmetric Pm3m space group of [quinuclidinium]ClO4 at room temperature to the orthorhombic polar Pna21 space group of [3-oxoquinuclidinium]ClO4. Different from the substituent groups of −OH, −CH3, and ═CH2, the addition of a ═O group with H-acceptor to [quinuclidinium]+ forms directionally N–H···O═C hydrogen-bonded chains, which plays a critical role in the generation of polar structure in [3-oxoquinuclidinium]ClO4. Systematic characterization indicates that [3-oxoquinuclidinium]ClO4 is an excellent molecular ferroelectric... |
| تدمد: | 1520-5126 0002-7863 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0a48181c214c06ad71d2fe2d955a02dc https://doi.org/10.1021/jacs.8b13223 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........0a48181c214c06ad71d2fe2d955a02dc |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205126 00027863 |
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