Modulation of hydrophilicity inside the cavity of molecular rectangles self-assembled under ambient conditions

2020 ◽  
Vol 56 (57) ◽  
pp. 7913-7916
Author(s):  
Sadhika Khullar ◽  
Sanjay K. Mandal
Keyword(s):  
Chain Length ◽  
Ambient Conditions ◽  
Methylene Chain ◽  
Self Assembled

Three molecular rectangles differing in the flexible methylene chain length show varied hydrophilicity inside their cavities.

Alkanethiol Adsorption on Platinum: Chain Length Effects on the Quality of Self-Assembled Monolayers

2011 ◽  
Vol 115 (36) ◽  
pp. 17788-17798 ◽  
Author(s):  
María Alejandra Floridia Addato ◽  
Aldo A. Rubert ◽  
Guillermo A. Benítez ◽  
Mariano H. Fonticelli ◽  
Javier Carrasco ◽  
...  
Keyword(s):  
Chain Length ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Platinum Chain ◽  
Length Effects

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.

InGaZnO Thin-Film Transistors Modified by Self-Assembled Monolayer With Different Alkyl Chain Length

2015 ◽  
Vol 36 (7) ◽  
pp. 687-689 ◽  
Author(s):  
Peng Xiao ◽  
Linfeng Lan ◽  
Ting Dong ◽  
Zhenguo Lin ◽  
Sheng Sun ◽  
...  
Keyword(s):  
Thin Film ◽  
Chain Length ◽  
Thin Film Transistors ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Self Assembled Monolayer ◽  
Self Assembled

Surface vibrations in alkanethiol self-assembled monolayers of varying chain length

2004 ◽  
Vol 120 (8) ◽  
pp. 3880-3886 ◽  
Author(s):  
A. W. Rosenbaum ◽  
M. A. Freedman ◽  
S. B. Darling ◽  
I. Popova ◽  
S. J. Sibener
Keyword(s):  
Chain Length ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Surface Vibrations ◽  
Self Assembled
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