STM analysis of surface-adsorbed conjugated oligo(p-phenylene-ethynylene) (OPE) nanostructures

2016 ◽  
Vol 18 (46) ◽  
pp. 31725-31731 ◽  
Author(s):  
Mengqi Shen ◽  
Zhouyang Luo ◽  
Yanfang Geng ◽  
Wei Hu ◽  
Siqi Zhang ◽  
...  
Keyword(s):  
Side Chains ◽  
Conjugated Oligomers ◽  
Phenylene Ethynylene ◽  
Self Assembled

A series of conjugated oligomers with different backbone lengths and side chains displayed various self-assembled structures on HOPG surface.

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 X-ray spectroscopy characterization of self-assembled monolayers of nitrile-substituted oligo(phenylene ethynylene)s with variable chain length

2012 ◽  
Vol 3 ◽  
pp. 12-24 ◽  
Author(s):  
Hicham Hamoudi ◽  
Ping Kao ◽  
Alexei Nefedov ◽  
David L Allara ◽  
Michael Zharnikov
Keyword(s):  
Chain Length ◽  
Photoelectron Spectroscopy ◽  
Self Assembled Monolayers ◽  
Phenylene Ethynylene ◽  
X Ray ◽  
Molecular Length ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Gold Thiolate

Self-assembled monolayers (SAMs) of nitrile-substituted oligo(phenylene ethynylene) thiols (NC-OPEn) with a variable chain length n (n ranging from one to three structural units) on Au(111) were studied by synchrotron-based high-resolution X-ray photoelectron spectroscopy and near-edge absorption fine-structure spectroscopy. The experimental data suggest that the NC-OPEn molecules form well-defined SAMs on Au(111), with all the molecules bound to the substrate through the gold–thiolate anchor and the nitrile tail groups located at the SAM–ambient interface. The packing density in these SAMs was found to be close to that of alkanethiolate monolayers on Au(111), independent of the chain length. Similar behavior was found for the molecular inclination, with an average tilt angle of ~33–36° for all the target systems. In contrast, the average twist of the OPEn backbone (planar conformation) was found to depend on the molecular length, being close to 45° for the films comprising the short OPE chains and ~53.5° for the long chains. Analysis of the data suggests that the attachment of the nitrile moiety, which served as a spectroscopic marker group, to the OPEn backbone did not significantly affect the molecular orientation in the SAMs.

Shape-Persistent Linear, Kinked, and Cyclic Oligo(phenylene-ethynylene-butadiynylene)s: Self-Assembled Monolayers

Langmuir ◽  
2011 ◽  
Vol 27 (13) ◽  
pp. 8205-8215 ◽  
Author(s):  
Stefan-S. Jester ◽  
Alisa Idelson ◽  
Daniela Schmitz ◽  
Friederike Eberhagen ◽  
Sigurd Höger
Keyword(s):  
Self Assembled Monolayers ◽  
Phenylene Ethynylene ◽  
Assembled Monolayers ◽  
Self Assembled

Conjugated Oligomers and Polymers Sheathed with Designer Side Chains

2015 ◽  
Vol 10 (9) ◽  
pp. 1820-1835 ◽  
Author(s):  
Chengjun Pan ◽  
Chunhui Zhao ◽  
Masayuki Takeuchi ◽  
Kazunori Sugiyasu
Keyword(s):  
Side Chains ◽  
Conjugated Oligomers

Effects of Metal Coating on Self-Assembled Monolayers on Gold. 2. Copper on an Oligo(Phenylene-Ethynylene) Monolayer

Langmuir ◽  
2005 ◽  
Vol 21 (26) ◽  
pp. 12268-12277 ◽  
Author(s):  
Paula E. Colavita ◽  
Paul G. Miney ◽  
Lindsay Taylor ◽  
Ryan Priore ◽  
Darren L. Pearson ◽  
...  
Keyword(s):  
Metal Coating ◽  
Self Assembled Monolayers ◽  
Phenylene Ethynylene ◽  
Assembled Monolayers ◽  
Self Assembled

Self-assembled structures formed by a wedge-shaped molecule in 2D and 3D: the role of flexible side chains and polar head groups

2010 ◽  
Vol 12 (7) ◽  
pp. 1444-1452 ◽  
Author(s):  
Xiaomin Zhu ◽  
Ahmed Mourran ◽  
Uwe Beginn ◽  
Martin Möller ◽  
Denis V. Anokhin ◽  
...  
Keyword(s):  
Side Chains ◽  
Polar Head ◽  
Head Groups ◽  
Self Assembled ◽  
2D And 3D

Sensitive and selective ratiometric fluorescent detection of monosaccharides in aqueous solutions at physiological pH using self-assembled peptides with different aromatic side chains

2017 ◽  
Vol 41 (7) ◽  
pp. 2593-2603 ◽  
Author(s):  
Lok Nath Neupane ◽  
Pramod Kumar Mehta ◽  
Keun-Hyeung Lee
Keyword(s):  
Aqueous Solutions ◽  
The Self ◽  
Fluorescent Detection ◽  
Side Chains ◽  
Self Assembled ◽  
Aromatic Side Chains

The control of disassembly of supramolecular nanostructures of the self-assembled peptides by monosaccharides was investigated for the fluorescent detection of monosaccharides in aqueous solutions.

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