Synthesis and Characterization of Conjugated Mono- and Dithiol Oligomers and Characterization of Their Self-Assembled Monolayers was written by de Boer, Bert;Meng, Hong;Perepichka, Dmitrii F.;Zheng, Jie;Frank, Martin M.;Chabal, Yves J.;Bao, Zhenan. And the article was included in Langmuir in 2003.Recommanded Product: Sodium 2-methyl-2-propanethiolate This article mentions the following:
The characterization of self-assembled monolayer mol. arrays, which serve as active layers in electronic devices, is an important step toward understanding mol.-scale electronics. To correlate the properties of self-assembled monolayers with their mol. structures, π-conjugated mono- and dithiols and aromatic dithiols with an O or S atom between two aromatic units were designed and synthesized. Their optical properties were determined by UV-visible spectroscopy. Their self-assembled monolayer films on Au surfaces were characterized by cyclic voltammetry, grazing incidence FTIR spectroscopy (GI-FTIR), and contact angle and ellipsometry measurements. Increasing the chain length from two to four Ph rings showed a more than linear increase of the intensity of the aromatic C:C ring stretch modes in GI-FTIR, indicating that the longer p-phenylene system is oriented toward the surface normal. Similar to oligophenylenes, when the number of repeat units for oligothiophene is increased, a more than linear increase of the intensity of the C:C stretch and C-H bend modes implies that the longest oligothiophenedithiol mol. is oriented close to the surface normal. Ellipsometry showed a smaller deviation from the calculated monolayer thickness with increasing number of thiophene or phenylene rings, corroborating the GI-FTIR data. The conjugated phenylene- and thiophene-based dithiols demonstrate a less tilted mol. orientation with respect to the surface normal with increasing chain length. In the experiment, the researchers used many compounds, for example, Sodium 2-methyl-2-propanethiolate (cas: 29364-29-2Recommanded Product: Sodium 2-methyl-2-propanethiolate).
Sodium 2-methyl-2-propanethiolate (cas: 29364-29-2) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Recommanded Product: Sodium 2-methyl-2-propanethiolate
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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts