Hybrid nitrate-water cluster in the hydrophobic cavity of cucurbit[8]uril
摘要:
A nitrate-water cluster [(NO3)(2)(H2O)(8)](2-) confined in the hydrophobic cavity of a cucurbit[8]uril complex with Sr2+ has been observed. It represents the first example of inorganic anion-water cluster formation inside the cucurbit[n]uril hydrophobic cavity. (C) 2016 Elsevier B.V. All rights reserved.
Probing Interactions between Hydrocarbons and Auxiliary Guests inside Cucurbit[8]uril
作者:Ramin Rabbani、Eric Masson
DOI:10.1021/acs.orglett.7b01966
日期:2017.8.18
The affinities of 20 hydrocarbons for the cavity formed by the inner wall of cucurbit[8]uril and a tolyl unit linked to an auxiliary guest were measured in aqueous solution. Cucurbit[8]uril and the auxiliary guest, a substituted ruthenium tris(2,2′-bipyridyl) complex bearing a trifluoromethyl 19F NMR probe, displayed perfect selectivity toward cyclic hydrocarbons, and cis- and trans-decalin, in particular
在水溶液中测量了20种碳氢化合物对葫芦[8] uril的内壁和与辅助客体连接的甲苯基单元形成的腔的亲和力。葫芦[8] uril和辅助客体,带有三氟甲基19 F NMR探针的取代钌三(2,2'-联吡啶)络合物,对环烃,尤其是顺式和反式十氢化萘显示出极好的选择性。与π-π相互作用不同,CH-π相互作用以及烃溶剂化的差异对识别过程有很大的贡献。
Dual Visible Light-Triggered Photoswitch of a Diarylethene Supramolecular Assembly with Cucurbit[8]uril
作者:Guoxing Liu、Ying-Ming Zhang、Conghui Wang、Yu Liu
DOI:10.1002/chem.201703562
日期:2017.10.17
only prompts the DAEs to form charge‐transfer complexes, but also restricts its intramolecular rotation to enhance fluorescence emission. In this CB[8]‐containing supramolecular system, the π‐conjugation is extended and its absorption is bathochromically shifted for visible light‐driven cyclization of DAEs. Meanwhile, the fluorescence of the supramolecular assembly can also be reversibly modulated by visible
A Woven Supramolecular Metal‐Organic Framework Comprising a Ruthenium Bis(terpyridine) Complex and Cucurbit[8]uril: Enhanced Catalytic Activity toward Alcohol Oxidation
作者:Yun‐Chang Zhang、Zi‐Yue Xu、Ze‐Kun Wang、Hui Wang、Dan‐Wei Zhang、Yi Liu、Zhan‐Ting Li
DOI:10.1002/cplu.202000391
日期:2020.7
supramolecular metal–organic framework wSMOF‐1 has been achieved from intertwined [Ru(tpy)2]2+ (tpy=2,2′,6′,2′′‐terpyridine) complex M1 and cucurbit[8]uril (CB[8]) in water, where the intermolecular dimers formed by the appended aromatic arms of M1 are encapsulated in CB[8]. wSMOF‐1 exhibits ordered pore periodicity in both water and the solid state, as confirmed by a combination of 1H NMR spectroscopy, UV‐vis
can be stabilized when those are secured with two Cucurbit[8]uril macrocycles (CB[8]) on top of rigid 2,6- and 2,7-substituted naphthalenes, which respectively mimic the trans and cis conformations of the dithiophene. The substituents are Pt(II) terpyridyl groups bearing CB[8]-binding sites at their 4′-position, as those form dimers in the presence of the macrocycle through Pt–Pt and dispersive interactions
Room-temperature phosphorescence of a water-soluble supramolecular organic framework
作者:Chen Xu、Xiaohan Lin、Wenjun Wu、Xiang Ma
DOI:10.1039/d1cc04786h
日期:——
A flexible porous water-soluble supramolecular organicframework was developed, which could efficiently exhibit phosphorescence both in an aqueous phase and in a film state at room-temperature.