Same building block, but diverse surface-confined self-assemblies: solvent and concentration effects-induced structural diversity towards chirality and achirality

2018 ◽  
Vol 20 (25) ◽  
pp. 17367-17379 ◽  
Author(s):  
Yi Hu ◽  
Shaogang Xu ◽  
Kai Miao ◽  
Xinrui Miao ◽  
Wenli Deng

The study presents solvent and concentration effects-induced diverse chiral and achiral self-assembly nanostructures on an HOPG surface.

2017 ◽  
Vol 53 (64) ◽  
pp. 9024-9027 ◽  
Author(s):  
Shuang Fu ◽  
Guo An ◽  
Hongcheng Sun ◽  
Quan Luo ◽  
Chunxi Hou ◽  
...  

Polymer nanocapsules and 2D-polymer films were successfully constructed by using a novel laterally functionalized pillararene derivative.


2001 ◽  
Vol 676 ◽  
Author(s):  
Trent H. Galow ◽  
Andrew K. Boal ◽  
Vincent M. Rotello

ABSTRACTWe have developed a highly modular electrostatically-mediated approach to colloid-colloid and polymer-colloid networks using ‘building block’ and ‘bricks and mortar’ self-assembly methodologies, respectively. The former approach involved functionalization of one type of nanoparticle building block with a primary amine and a counterpart building block with a carboxylic acid derivative. After combining these two systems, acid-base chemistry followed by immediate charge-pairing resulted in the spontaneous formation of electrostatically-bound mixed-nanoparticle constructs. The shape and size of these ensembles were controlled via variation of particle size and stoichiometries. In the ‘bricks and mortar’ approach, a functionalized polymer is combined with complementary nanoparticles to provide mixed polymer-nanoparticle networked structures. A notable feature is the inherent porosity resulting from the electrostatic assembly. The shape and size of these ensembles were controlled via variation of particle size, stoichiometries and the order in which they were added.


2018 ◽  
Vol 140 (50) ◽  
pp. 17365-17368 ◽  
Author(s):  
Yuteng Zhang ◽  
Hongmei Gan ◽  
Chao Qin ◽  
Xinlong Wang ◽  
Zhongmin Su ◽  
...  
Keyword(s):  

2016 ◽  
Vol 40 (12) ◽  
pp. 10116-10126 ◽  
Author(s):  
Ghodrat Mahmoudi ◽  
Farhad Akbari Afkhami ◽  
Himanshu Sekhar Jena ◽  
Parisa Nematollahi ◽  
Mehdi D. Esrafili ◽  
...  

Self-assembly of Zn(ii) compounds is influenced by a counter ion and non-covalent interactions.


2014 ◽  
Vol 205 (5) ◽  
pp. 613-619 ◽  
Author(s):  
Anthony K.L. Leung

Distinct properties of poly(ADP-ribose)—including its structural diversity, nucleation potential, and low complexity, polyvalent, highly charged nature—could contribute to organizing cellular architectures. Emergent data indicate that poly(ADP-ribose) aids in the formation of nonmembranous structures, such as DNA repair foci, spindle poles, and RNA granules. Informatics analyses reported here show that RNA granule proteins enriched for low complexity regions, which aid self-assembly, are preferentially modified by poly(ADP-ribose), indicating how poly(ADP-ribose) could direct cellular organization.


2010 ◽  
Vol 75 (4) ◽  
pp. 459-473 ◽  
Author(s):  
Pu Zhao ◽  
Xian Wang ◽  
Fang Jian ◽  
Jun Zhang ◽  
Lian Xiao

p-Hydroxybenzoic acid (p-HOBA) was selected as the building block for self-assembly with five bases, i.e., diethylamine, tert-butyl amine, cyclohexylamine, imidazole and piperazine, and generate the corresponding acid-base complexes 1-5. Crystal structure analyses suggest that proton-transfer from the carboxyl hydrogen to the nitrogen atom of the bases can be observed in 1-4; while only in 5 does a solvent water molecule co-exists with p-HOBA and piperazine. With the presence of O-H?O hydrogen bonds in 1-4, the deprotonated p-hydroxybenzoate anions (p-HOBAA-) are simply connected each other in a head-to-tail motif to form one-dimensional (1D) arrays, which are further extended to distinct two-dimensional (2D) (for 1 and 4) and three-dimensional (3D) (for 2 and 3 ) networks via N-H?O interactions. While in 5, neutral acid and base are combined pair wise by O-H?N and N-H?O bonds to form a 1D tape and then the 1D tapes are sequentially combined by water molecules to create a 3D network. Some interlayer or intralayer C-H?O, C-H?? and ??? interactions help to stabilize the supramolecular buildings. Melting point determination analyses indicate that the five acidbase complexes are not the ordinary superposition of the reactants and they are more stable than the original reactants.


2008 ◽  
Vol 32 (5) ◽  
pp. 777
Author(s):  
Patrick Plitt ◽  
Vincent M. Lynch ◽  
Jonathan L. Sessler
Keyword(s):  

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4422 ◽  
Author(s):  
Moreno-Alcántar ◽  
Salazar ◽  
Romo-Islas ◽  
Flores-Álamo ◽  
Torrens

Despite the recurrence of aurophilic interactions in the solid-state structures of gold(I) compounds, its rational control, modulation, and application in the generation of functional supramolecular structures is an area that requires further development. The ligand effects over the aurophilic-based supramolecular structures need to be better understood. This paper presents the supramolecular structural diversity of a series of new 1,3-bis(diphenylphosphane)propane (dppp) gold(I) fluorinated thiolates with the general formula [Au2(SRF)2(μ-dppp)] (SRF = SC6F5 (1); SC6HF4-4 (2); SC6H3(CF3)2-3,5 (3); SC6H4CF3-2 (4); SC6H4CF3-4 (5); SC6H3F2-3,4 (6); SC6H3F2-3,5 (7); SC6H4F-2 (8); SC6H4F-3 (9); SC6H4F-4 (10)). These compounds were synthesized and characterized, and six of their solid-state crystalline structures were determined using single-crystal X-ray diffraction. In the crystalline arrangement, they form aurophilic-bridged polymers. In these systems, the changes in the fluorination patterns of the thiolate ligands tune the aurophilic-induced self-assembly of the compounds causing tacticity and chiral differentiation of the monomers. This is an example of the use of ligand effects on the tune of the supramolecular association of gold complexes.


Polyhedron ◽  
2004 ◽  
Vol 23 (13) ◽  
pp. 2125-2134 ◽  
Author(s):  
Wen-Long Liu ◽  
Yang Zou ◽  
Chang-Sheng Lu ◽  
Dong-Bin Dang ◽  
Yi-Zhi Li ◽  
...  

2015 ◽  
Vol 44 (11) ◽  
pp. 5205-5210 ◽  
Author(s):  
Yuan Jiang ◽  
Lei Qin ◽  
Guanghua Li ◽  
Ghulam Abbas ◽  
Yaqun Cao ◽  
...  

A ferromagnetic chain based on a [Mn3] ferromagnetic building block is reported.


Sign in / Sign up

Export Citation Format

Share Document