Reversible Scrolling of Two-Dimensional Sheets from the Self-Assembly of Laterally Grafted Amphiphilic Rods

2009 ◽  
Vol 48 (20) ◽  
pp. 3657-3660 ◽  
Author(s):  
Eunji Lee ◽  
Jung-Keun Kim ◽  
Myongsoo Lee
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Two Dimensional

Self-assembled atomically thin hybrid conjugated polymer perovskites with two-dimensional structure

2018 ◽  
Vol 6 (31) ◽  
pp. 8405-8410 ◽  
Author(s):  
Furkan H. Isikgor ◽  
Chilla Damodara Reddy ◽  
Mengsha Li ◽  
Hikmet Coskun ◽  
Bichen Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
Conjugated Polymer ◽  
The Self ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Self Assembled

2D hybrid perovskites are formed through the self assembly of polyaniline with PbI6 octahedra.

scholarly journals Isostructural rubidium and caesium 4-(3,5-dinitropyrazol-4-yl)-3,5-dinitropyrazolates: crystal engineering with polynitro energetic species

2021 ◽  
Vol 77 (11) ◽  
Author(s):  
Kostiantyn V. Domasevitch ◽  
Vira V. Ponomarova
Keyword(s):  
Crystal Engineering ◽  
Self Assembly ◽  
Energetic Materials ◽  
Lone Pair ◽  
The Self ◽  
Two Dimensional ◽  
Modular Construction ◽  
Dipole Interactions ◽  
Hirshfeld Surfaces ◽  
Counter Ions

In the structures of the title salts, poly[[μ4-4-(3,5-dinitropyrazol-4-yl)-3,5-dinitropyrazol-1-ido]rubidium], [Rb(C6HN8O8)] n , (1), and its isostructural caesium analogue [Cs(C6HN8O8) n , (2), two independent cations M1 and M2 (M = Rb, Cs) are situated on a crystallographic twofold axis and on a center of inversion, respectively. Mutual intermolecular hydrogen bonding between the conjugate 3,5-dinitopyrazole NH-donor and 3,5-dinitropyrazole N-acceptor sites of the anions [N...N = 2.785 (2) Å for (1) and 2.832 (3) Å for (2)] governs the self-assembly of the translation-related anions in a predictable fashion. Such one-component modular construction of the organic subtopology supports the utility of the crystal-engineering approach towards designing the structures of polynitro energetic materials. The anionic chains are further linked by multiple ion–dipole interactions involving the 12-coordinate cations bonded to two pyrazole N-atoms [Rb—N = 3.1285 (16), 3.2261 (16) Å; Cs—N = 3.369 (2), 3.401 (2) Å] and all of the eight nitro O-atoms [Rb—O = 2.8543 (15)–3.6985 (16) Å; Cs—O = 3.071 (2)–3.811 (2) Å]. The resulting ionic networks follow the CsCl topological archetype, with either metal or organic ions residing in an environment of eight counter-ions. Weak lone pair–π-hole interactions [pyrazole-N atoms to NO2 groups; N...N = 2.990 (3)–3.198 (3) Å] are also relevant to the packing. The Hirshfeld surfaces and percentage two-dimensional fingerprint plots for (1) and (2) are described.

Two-dimensional (2D) self-assembly of oligo(phenylene-ethynylene) molecules and their triangular platinum(ii) diimine complexes studied using STM

2017 ◽  
Vol 19 (46) ◽  
pp. 31284-31289 ◽  
Author(s):  
Siqi Zhang ◽  
Yanfang Geng ◽  
Yuanpeng Fan ◽  
Wubiao Duan ◽  
Ke Deng ◽  
...  
Keyword(s):  
Self Assembly ◽  
Scanning Tunneling Microscope ◽  
The Self ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Phenylene Ethynylene ◽  
Tunneling Microscope ◽  
Diimine Complexes

The self-assembly of a series of cyclic oligo(phenylene-ethynylene) (OPE) molecules and their triangular Pt(ii) diimine complexes were studied using scanning tunneling microscope (STM).

Effect of the annealing time on the self-assembly of two-dimensional DNA crystals

2013 ◽  
Vol 58 (15) ◽  
pp. 1450-1455
Author(s):  
ChangLong LIU ◽  
ZhiYong SHEN ◽  
Ming ZHOU ◽  
LiZhou ZHUANG ◽  
George AMOAKO ◽  
...  
Keyword(s):  
Annealing Time ◽  
Self Assembly ◽  
The Self ◽  
Two Dimensional ◽  
Dna Crystals

Poly[di-μ-aqua-μ-1,2-bis(pyridin-4-yl)ethene-κ2N:N′-tetrakis(4-iodobenzoato-κ2O,O′)dicadmium]

2011 ◽  
Vol 68 (1) ◽  
pp. m21-m23 ◽  
Author(s):  
Dong Liu ◽  
Ni-Ya Li
Keyword(s):  
Self Assembly ◽  
Title Compound ◽  
The Self ◽  
Dimensional Structure ◽  
Water Molecules ◽  
Two Dimensional ◽  
Coordination Environment ◽  
Iodobenzoic Acid

Colourless crystals of the title compound, [Cd2(C7H4IO2)4(C12H10N2)(H2O)2]n, were obtained by the self-assembly of Cd(NO3)2·4H2O, 1,2-bis(pyridin-4-yl)ethene (bpe) and 4-iodobenzoic acid (4-IBA). Each CdIIatom is seven-coordinated in a pentagonal–bipyramidal coordination environment by four carboxylate O atoms from two different 4-IBA ligands, two O atoms from two water molecules and one N atom from a bpe ligand. The CdIIcentres are bridged by the aqua molecules and bpe ligands, which lie across centres of inversion, to give a two-dimensional net. Topologically, taking the CdIIatoms as nodes and the μ-aqua and μ-bpe ligands as linkers, the two-dimensional structure can be simplified as a (6,3) network.

scholarly journals Synergistic role of nucleotides and lipids for the self-assembly of Shs1 septin oligomers

2020 ◽  
Vol 477 (14) ◽  
pp. 2697-2714
Author(s):  
Cyntia Taveneau ◽  
Rémi Blanc ◽  
Gérard Péhau-Arnaudet ◽  
Aurélie Di Cicco ◽  
Aurélie Bertin
Keyword(s):  
Self Assembly ◽  
Structural Organization ◽  
Electron Tomography ◽  
Budding Yeast ◽  
The Self ◽  
Two Dimensional ◽  
Molecular Polymorphism ◽  
Cryo Electron Tomography ◽  
First Time

Budding yeast septins are essential for cell division and polarity. Septins assemble as palindromic linear octameric complexes. The function and ultra-structural organization of septins are finely governed by their molecular polymorphism. In particular, in budding yeast, the end subunit can stand either as Shs1 or Cdc11. We have dissected, here, for the first time, the behavior of the Shs1 protomer bound to membranes at nanometer resolution, in complex with the other septins. Using electron microscopy, we have shown that on membranes, Shs1 protomers self-assemble into rings, bundles, filaments or two-dimensional gauzes. Using a set of specific mutants we have demonstrated a synergistic role of both nucleotides and lipids for the organization and oligomerization of budding yeast septins. Besides, cryo-electron tomography assays show that vesicles are deformed by the interaction between Shs1 oligomers and lipids. The Shs1–Shs1 interface is stabilized by the presence of phosphoinositides, allowing the visualization of micrometric long filaments formed by Shs1 protomers. In addition, molecular modeling experiments have revealed a potential molecular mechanism regarding the selectivity of septin subunits for phosphoinositide lipids.

Sign in / Sign up

Export Citation Format

Share Document