当前位置：
X-MOL 学术
›
Angew. Chem. Int. Ed.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Spherical Supramolecular Structures Constructed via Chemically Symmetric Perylene Bisimides: Beyond Columnar Assembly.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-07-12 , DOI: 10.1002/anie.201914889 Jiahao Huang 1, 2 , Zebin Su 2 , Mingjun Huang 1 , Rongchun Zhang 1 , Jian Wang 3 , Xueyan Feng 2 , Rui Zhang 1 , Ruimeng Zhang 2 , Wenpeng Shan 2 , Xiao-Yun Yan 2 , Qing-Yun Guo 2 , Tong Liu 2 , Yuchu Liu 2 , Yunpeng Cui 4 , Xiaopeng Li 4 , An-Chang Shi 5 , Stephen Z D Cheng 1, 2
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-07-12 , DOI: 10.1002/anie.201914889 Jiahao Huang 1, 2 , Zebin Su 2 , Mingjun Huang 1 , Rongchun Zhang 1 , Jian Wang 3 , Xueyan Feng 2 , Rui Zhang 1 , Ruimeng Zhang 2 , Wenpeng Shan 2 , Xiao-Yun Yan 2 , Qing-Yun Guo 2 , Tong Liu 2 , Yuchu Liu 2 , Yunpeng Cui 4 , Xiaopeng Li 4 , An-Chang Shi 5 , Stephen Z D Cheng 1, 2
Affiliation
|
Like other discotic molecules, self‐assembled supramolecular structures of perylene bisimides (PBIs) are commonly limited to columnar or lamellar structures due to their distinct π‐conjugated scaffolds and unique rectangular shape of perylene cores. The discovery of PBIs with supramolecular structures beyond layers and columns may expand the scope of PBI‐based materials. A series of unconventional spherical packing phases in PBIs, including A15 phase, σ phase, dodecagonal quasicrystalline (DQC) phase, and body‐centered cubic (BCC) phase, is reported. A strategy involving functionalization of perylene core with several polyhedral oligomeric silsesquioxane (POSS) cages achieved spherical assemblies of PBIs, instead of columnar assemblies, due to the significantly increased steric hindrance at the periphery. This strategy may also be employed for the discovery of unconventional spherical assemblies in other related discotic molecules by the introduction of similar bulky functional groups at their periphery. An unusual inverse phase transition sequence from a BCC phase to a σ phase was observed by increasing annealing temperature.
中文翻译：
通过化学对称Per双酰亚胺构筑的球状超分子结构：超越柱状组装。
像其他盘状分子一样，per双酰亚胺（PBI）的自组装超分子结构由于其独特的π共轭支架和unique核的独特矩形形状而通常限于柱状或层状结构。发现具有超越层和柱的超分子结构的PBI可能会扩展基于PBI的材料的范围。据报道，PBI中有一系列非常规的球形堆积相，包括A15相，σ相，十二边形准晶（DQC）相和体心立方（BCC）相。一种涉及用几个多面体低聚倍半硅氧烷（POSS）笼功能化per核的策略，由于在外围的空间位阻显着增加，因此实现了PBI的球形组装，而不是圆柱状组装。通过在其周边引入相似的庞大官能团，该策略也可用于发现其他相关盘状分子中的非常规球形组装体。通过提高退火温度，观察到了从BCC相到σ相的异常逆相变序列。
更新日期：2020-07-12
中文翻译：
通过化学对称Per双酰亚胺构筑的球状超分子结构：超越柱状组装。
像其他盘状分子一样，per双酰亚胺（PBI）的自组装超分子结构由于其独特的π共轭支架和unique核的独特矩形形状而通常限于柱状或层状结构。发现具有超越层和柱的超分子结构的PBI可能会扩展基于PBI的材料的范围。据报道，PBI中有一系列非常规的球形堆积相，包括A15相，σ相，十二边形准晶（DQC）相和体心立方（BCC）相。一种涉及用几个多面体低聚倍半硅氧烷（POSS）笼功能化per核的策略，由于在外围的空间位阻显着增加，因此实现了PBI的球形组装，而不是圆柱状组装。通过在其周边引入相似的庞大官能团，该策略也可用于发现其他相关盘状分子中的非常规球形组装体。通过提高退火温度，观察到了从BCC相到σ相的异常逆相变序列。
京公网安备 11010802027423号