Two side chains, three supramolecules: exploration of fluorenone derivatives towards crystal engineering

2017 ◽  
Vol 19 (29) ◽  
pp. 19205-19216 ◽  
Author(s):  
Yi Hu ◽  
Kai Miao ◽  
Li Xu ◽  
Bao Zha ◽  
Mengying Long ◽  
...  
Keyword(s):  
Chain Length ◽  
Crystal Engineering ◽  
Self Assembly ◽  
The Self ◽  
Side Chains ◽  
Length Effect ◽  
Alkyl Chains

We explored the chain length effect on inducing the self-assembly of diverse structures by tiny modification of the alkyl chains.

Aggregation behavior of zwitterionic surface active ionic liquids with different counterions, cations, and alkyl chains

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27370-27377 ◽  
Author(s):  
Panpan Sun ◽  
Lijuan Shi ◽  
Fei Lu ◽  
Liqiang Zheng
Keyword(s):  
Ionic Liquids ◽  
Chain Length ◽  
Self Assembly ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Aggregation Behavior ◽  
The Self ◽  
Alkyl Chains ◽  
Surface Active

The effects of anionic type, cationic structure and alkyl chain length are illustrated to regulate the self-assembly of zwitterionic SAILs.

Directive Effect of Chain Length in Modulating Peptide Nano-assemblies

2020 ◽  
Vol 27 (9) ◽  
pp. 923-929
Author(s):  
Gaurav Pandey ◽  
Prem Prakash Das ◽  
Vibin Ramakrishnan
Keyword(s):  
Electron Microscopy ◽  
Amino Acids ◽  
Light Scattering ◽  
Chain Length ◽  
Self Assembly ◽  
The Self ◽  
Ionic Charge ◽  
Self Assembling ◽  
Biophysical Techniques

Background: RADA-4 (Ac-RADARADARADARADA-NH2) is the most extensively studied and marketed self-assembling peptide, forming hydrogel, used to create defined threedimensional microenvironments for cell culture applications. Objectives: In this work, we use various biophysical techniques to investigate the length dependency of RADA aggregation and assembly. Methods: We synthesized a series of RADA-N peptides, N ranging from 1 to 4, resulting in four peptides having 4, 8, 12, and 16 amino acids in their sequence. Through a combination of various biophysical methods including thioflavin T fluorescence assay, static right angle light scattering assay, Dynamic Light Scattering (DLS), electron microscopy, CD, and IR spectroscopy, we have examined the role of chain-length on the self-assembly of RADA peptide. Results: Our observations show that the aggregation of ionic, charge-complementary RADA motifcontaining peptides is length-dependent, with N less than 3 are not forming spontaneous selfassemblies. Conclusion: The six biophysical experiments discussed in this paper validate the significance of chain-length on the epitaxial growth of RADA peptide self-assembly.

Self-assembly of chiral oligo(methylene-p-phenylene-ethynylene)s into vesicle-like particles independent of hydrophobicity/hydrophilicity of side chains and solvents

Soft Matter ◽  
2021 ◽  
Author(s):  
Zhiqiang Zhao ◽  
Zheng Bian ◽  
Yu Chen ◽  
Chuanqing Kang ◽  
Lianxun Gao ◽  
...  
Keyword(s):  
Self Assembly ◽  
Molecular Design ◽  
The Self ◽  
Side Chains ◽  
Phenylene Ethynylene

Chiral oligo(methylene-p-phenyleneethynylene)s can form vesicular assemblies no matter whether side chains and solvents are hydrophilic or hydrophobic. The self-assembly processes are highly independent of molecular design and chemical environments.

scholarly journals Influence of Side Chain Length on the Self-Assembly of Hairy-Rod Poly(9,9-dialkylfluorene)s in the Poor Solvent Methylcyclohexane

2007 ◽  
Vol 40 (26) ◽  
pp. 9398-9405 ◽  
Author(s):  
M. Knaapila ◽  
F. B. Dias ◽  
V. M. Garamus ◽  
L. Almásy ◽  
M. Torkkeli ◽  
...  
Keyword(s):  
Chain Length ◽  
Self Assembly ◽  
The Self ◽  
Side Chain ◽  
Side Chain Length ◽  
The Poor ◽  
Poor Solvent

The influence of oligo(ethylene glycol) side chains on the self-assembly of benzene-1,3,5-tricarboxamides in the solid state and in solution

2009 ◽  
Vol 19 (1) ◽  
pp. 124-130 ◽  
Author(s):  
Patrick J. M. Stals ◽  
Jan F. Haveman ◽  
Rafael Martín-Rapún ◽  
Carel F. C. Fitié ◽  
Anja R. A. Palmans ◽  
...  
Keyword(s):  
Solid State ◽  
Ethylene Glycol ◽  
Self Assembly ◽  
The Self ◽  
Side Chains

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.

Control the self-assembly of fluorenone-based polycatenars by tuning chain length

Tetrahedron ◽  
2019 ◽  
Vol 75 (3) ◽  
pp. 409-415 ◽  
Author(s):  
Kai Zhao ◽  
Yulong Xiao ◽  
Chunxiang Guo ◽  
Qing Chang ◽  
Hongfei Gao ◽  
...  
Keyword(s):  
Chain Length ◽  
Self Assembly ◽  
The Self
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