Rationally tuning host–guest interactions to free hydroxide ions within intertrimerically cuprophilic metal–organic frameworks for high OH<sup>−</sup> conductivity
Rationally tuning host–guest interactions to free hydroxide ions within intertrimerically cuprophilic MOF for high OH− conductivity.
合理调节宿主-客体相互作用,以在三聚物杯铜MOF中释放氢氧根离子,实现高OH-导电性。
Poly(ionic liquid) and macrocyclic polyoxometalate ionic self-assemblies: new water-insoluble and visible light photosensitive catalysts
作者:Rosa Ngo Biboum、Floriant Doungmene、Bineta Keita、Pedro de Oliveira、Louis Nadjo、Bénédicte Lepoittevin、Philippe Roger、François Brisset、Pierre Mialane、Anne Dolbecq、Israel M. Mbomekalle、Céline Pichon、Panchao Yin、Tianbo Liu、Roland Contant
DOI:10.1039/c1jm14573h
日期:——
Several poly(ionic liquid)s (PILs) were synthesized and assembled with a multielectronic-process sustaining polyoxometalate (POM) into new green and water-insoluble nanomaterials (POM@PILs). They are visible light photosensitive, unlike their two components. A synergic effect was highlighted for the first time. POM@PILs achieve complete photodegradation of AO7 in aerobic media. The photocatalysts were recoverable and recyclable.
METALLIC SALT CONTAINING ANION HAVING HETEROCYCLIC AROMATIC STRUCTURE, METHOD OF PREPARING THE METALLIC SALT, AND ELECTROLYTE AND ELECTROCHEMICAL DEVICE EACH INCLUDING THE METALLIC SALT
申请人:Samsung Electronics Co., Ltd.
公开号:US20200157058A1
公开(公告)日:2020-05-21
A metallic salt including at least one anion having a heterocyclic aromatic structure represented by one of Formulae 1 to 3; and a metallic cation:
wherein, in Formulae 1 to 3, each X is independently N, P, or As, one of A
1
and A
2
is an electron-donating group, and the other one is an electron-withdrawing group, ring, Ar
1
and ring Ar
2
are as defined herein, L is a linker group as defined herein, m is an integer from 1 to 5, and n is an integer from 0 to 5.
Flexibility Matters: Cooperative Active Sites in Covalent Organic Framework and Threaded Ionic Polymer
作者:Qi Sun、Briana Aguila、Jason Perman、Nicholas Nguyen、Shengqian Ma
DOI:10.1021/jacs.6b10629
日期:2016.12.7
molecular organocatalysts and heterogeneous Lewis acid catalysts, while affording additional recyclability. The extraordinary flexibility and enriched concentration of the catalytically active moieties on linear polymers facilitate the concerted catalysis, thus leading to superior catalytic performance. This work therefore uncovers an entirely new strategy for designing bifunctional catalysts with double-activation
两个或多个反应中心在底物上协同工作以促进反应的组合现在被认为是催化领域的最新技术,但仍然存在巨大的挑战。这种类型的异构系统很少被利用,因为在刚性框架内空间分离的活性位点通常难以合作。现在事实证明,这个障碍是可以被超越的。这里介绍的策略的基本原理是将具有优异柔韧性和多孔多相催化剂的催化组分结合起来,正如将线性离子聚合物放置在靠近表面路易斯酸活性位点的位置,这些位点锚定在共价有机框架的壁上。 COF)。使用环氧化物和 CO2 的环加成反应作为模型反应,相对于单个催化组分,复合催化剂的活性得到了显着提高。此外,它们也明显优于由分子有机催化剂和多相路易斯酸催化剂组合形成的基准催化系统,同时提供额外的可回收性。线性聚合物上催化活性部分的非凡灵活性和富集浓度促进协同催化,从而导致优异的催化性能。因此,这项工作揭示了一种全新的设计具有双重活化行为的双功能催化剂的策略,并为设计模拟生物催化的多功能系统开辟