The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Tri-n-octylphosphine Oxide( cas:78-50-2 ) is researched.Category: catalyst-palladium.Gorbachev, Ilya A.; Smirnov, Andrey V.; Glukhovskoy, Evgeny G.; Kolesov, Vladimir V.; Ivanov, George R.; Kuznetsova, Iren E. published the article 《Morphology of Mixed Langmuir and Langmuir-Schaefer Monolayers with Covered CdSe/CdS/ZnS Quantum Dots and Arachidic Acid》 about this compound( cas:78-50-2 ) in Langmuir. Keywords: cadmium selenide zinc sulfide quantum dot Langmuir monolayer aggregation. Let’s learn more about this compound (cas:78-50-2).
The process of formation of a Langmuir-Schaefer (LS) matrix based on a mixed monolayer of arachidic acid (AA) and 8 nm CdSe/CdS/ZnS quantum dots (QDs) stabilized by mols. of trioctylphosphine oxide (TOPO) was investigated. The change in the morphol., monolayer compressibility, and area per elementary cell of the created mixed monolayers, depending on the ratio of the components, was studied. It is shown that the change in the morphol. of Langmuir-Blodgett (LB) monolayers begins to occur at a ratio between the number of QDs and AA mols. of 1:24. Dendrimeric structures with a thickness of the order of 30-40 nm appear in the mixed monolayer when LB film deposition was carried out above the collapse surface pressure of a Langmuir film from only TOPO-covered QDs. Information on the dependence of the morphol. of such structures on the molar ratio of the components is necessary for the production of ordered 2D nanostructures containing 0D and 1D objects with quantum bonds. Such nanostructures can be used in nanoelectronic and optoelectronic devices as a sensitive sensor element. The obtained results would be relevant for any type of spherical shape nanoparticles.
《Morphology of Mixed Langmuir and Langmuir-Schaefer Monolayers with Covered CdSe/CdS/ZnS Quantum Dots and Arachidic Acid》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Tri-n-octylphosphine Oxide)Category: catalyst-palladium.
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method