Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(20)
Опубликована: Фев. 21, 2024
Post-synthetic modification plays a crucial role in precisely adjusting the structure and functions of advanced materials. Herein, we report self-assembly tubular heterometallic Pd
Язык: Английский
Nature Reviews Chemistry, Год журнала: 2022, Номер 6(5), С. 339 - 356
Опубликована: Апрель 4, 2022
Язык: Английский
Процитировано
142
Journal of the American Chemical Society, Год журнала: 2022, Номер 144(16), С. 7504 - 7513
Опубликована: Апрель 18, 2022
Anthracene crude oil is a common source of phenanthrene for its industrial use. The isolation from this challenging task due to very similar physical properties isomer anthracene. We report here water-soluble Pd(II) molecular boat (MB1) with unusual structural topology that was obtained by assembling flexible tetrapyridyl donor (L) cis-Pd(II) acceptor. backbone the enabled it breathe in presence guest optimizing fit within cavity. binds more strongly than anthracene, which separation an >98% purity equimolar mixture two isomers using MB1 as extracting agent. represents unique example coordination receptor suitable selective aqueous extraction anthracene reusability several cycles.
Язык: Английский
Процитировано
57
Journal of the American Chemical Society, Год журнала: 2023, Номер 145(46), С. 25365 - 25371
Опубликована: Ноя. 14, 2023
Azulene, a blue structural isomer of naphthalene, is introduced as the backbone for new family Pd(II)-based self-assemblies. Three organic ligands, equipped with varying donor groups, produce three [Pd2L4] cages different cavity dimensions. Unexpectedly, addition disulfonate guests to smallest lantern-shaped cage (featuring pyridine donors) led rapid and quantitative transformation distorted-tetrahedral [Pd4L8] species. On contrary, formed from ligands isoquinoline donors either just encapsulated or showed no interaction. The tetrahedral species could be fully reverted back its original topology by capturing guest another, stronger binding [Pd2L'4] coordination cage, narcissistically self-sorting first cage. azulenes, serving colored hydrocarbon backbones minimal atom count, allow one follow assembly guest-induced naked eye. Furthermore, we propose that their peculiar electronic structure influences system's behavior.
Язык: Английский
Процитировано
28
Nature Communications, Год журнала: 2023, Номер 14(1)
Опубликована: Янв. 11, 2023
Abstract Bio-inspired self-assembly is invaluable to create well-defined giant structures from small molecular units. Owing a large entropy loss in the process, highly symmetric are typically obtained as thermodynamic products while formation of low assemblies still challenging. In this study, we report symmetry-breaking defined C 1 -symmetric supramolecular structure an O h hydrogen-bonded resorcin[4]arene capsule and 2 cationic bis-cyclometalated Ir complexes, carrying sterically demanding tertiary butyl ( t Bu) groups, on basis synergistic effects weak binding forces. The flexible framework shows structural change upon guest form distorted hexameric capsule, providing asymmetric cavity. Location chiral inside anisotropic environment leads modulation its Electric Dipole (ED) Magnetic (MD) transition moments excited state, causing increased emission quantum yield, longer lifetime, enhancement dissymmetry factor g lum ) circularly polarized luminescence.
Язык: Английский
Процитировано
25
Chemical Society Reviews, Год журнала: 2024, Номер 53(21), С. 10380 - 10408
Опубликована: Янв. 1, 2024
Stemming from early seminal notions of molecular recognition and encapsulation, three-dimensional, cavity-containing capsular compounds assemblies have attracted intense interest due to the ability modulate chemical physical properties species encapsulated within these confined spaces compared bulk environments. With such a diverse range covalent motifs non-covalent (supramolecular) interactions available assemble building blocks, an incredibly wide-range capsular-type architectures been developed. Furthermore, synthetic tunability internal environments gives chemists opportunity engineer systems for uses in sensing, sequestration, catalysis transport molecules, just name few. In this tutorial review, overview is provided into design principles, synthesis, characterisation, structural facets coordination cages, porous organic supramolecular capsules, foldamers mechanically interlocked molecules. Using recent examples, advantages limitations each system are explored, highlighting their application various tasks functions.
Язык: Английский
Процитировано
13
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(23)
Опубликована: Апрель 3, 2024
Abstract Controlling supramolecular systems between different functional forms by utilizing acids/bases as stimuli is a formidable challenge, especially where labile coordination bonds are involved. A pair of acid/base responsive, interconvertible 1,5‐enedione/pyrylium based Pd 2 L 4 ‐type cages prepared that exhibit differential guest binding abilities towards disulfonates varied sizes. three‐state switch has been achieved, (i) weakly coordinating base induced cage‐to‐cage transformation in the first step, (ii) strongly triggered cage disassembly second and (iii) third step shows acid(strong) promoted generation initial cage, thereby completing cycle. To our surprise, specific disulfonate facilitated transformations inducing strain on assembly opening pyrylium rings cage. Through competitive study, we demonstrated superior capability octacationic pyrylium‐based over similar‐sized tetracationic These results provide reliable approach to reversibly modulate properties acid/base‐responsive self‐assembled cages.
Язык: Английский
Процитировано
10
Chemical Science, Год журнала: 2022, Номер 13(40), С. 11764 - 11771
Опубликована: Янв. 1, 2022
We report here a triply interlocked cage with the ability to encapsulate planar guests in aqueous medium. This property was then employed efficiently separate and non-planar aromatic hydrocarbons by extraction.
Язык: Английский
Процитировано
37
Chemical Communications, Год журнала: 2022, Номер 58(33), С. 5055 - 5071
Опубликована: Янв. 1, 2022
The continuous release of toxic chemicals and pollutants into the atmosphere natural waters threatens, directly indirectly, human health, sustainability planet, future society. Materials capable capturing or chemically inactivating hazardous substances, which are harmful to humans environment, critical in modern age. Metal-organic cages (MOCs) show great promise as materials against agents both solution solid state. This Highlight features examples MOCs that selectively encapsulate, adsorb, remove from a medium noxious gases, organophosphorus compounds, water pollutant oxoanions, some emerging organic contaminants. Remarkably, toxicity interacting contaminants may be lowered by well. Specific cases pertaining use these for chemical degradation substances presented. thus aims provide an overview possibilities this area new methodological insights their operation enhancing activity engineering further remediation applications.
Язык: Английский
Процитировано
34
Chemical Science, Год журнала: 2022, Номер 13(40), С. 11912 - 11917
Опубликована: Янв. 1, 2022
Cuboctahedral coordination cages of the general formula [Pd12L24]24+ (L = low-symmetry ligand) were analyzed theoretically and experimentally. With 350 696 potential isomers, structural space these assemblies is vast. Orientational self-sorting refers to preferential formation particular isomers within pool structures. Geometric computational analyses predict preferred with a cis arrangement at metal centers. This prediction was corroborated experimentally by synthesizing cage bridging 3-(4-(pyridin-4-yl)phenyl)pyridine ligand. A crystallographic analysis this assembly showed exclusive 3- 4-pyridyl donor groups Pd2+ ions.
Язык: Английский
Процитировано
30
Nature Synthesis, Год журнала: 2024, Номер 3(10), С. 1197 - 1207
Опубликована: Июль 24, 2024
Язык: Английский
Процитировано
9