0000000000657366

AUTHOR

Michal Valášek

0000-0001-9382-6327

showing 2 related works from this author

Measured and Calculated Oxidation Potentials of 1-X-12-Y-CB11Me10– Anions

2012

Cyclic voltammetry of 31 icosahedral carborane anions 1-X-12-Y-CB(11)Me(10)(-) at a Pt electrode in liquid SO(2) revealed a completely reversible one-electron oxidation even at low scan rates, except for the anions with Y = I, which are oxidized irreversibly up to a scan rate of 5.0 V/s, and the anion with X = COOH and Y = H, whose oxidation is irreversible at scan rates below 1.0 V/s. Relative reversible oxidation potentials agree well with RI-B3LYP/TZVPP,COSMO and significantly less well with RI-BP86/TZVPP,COSMO or RI-HF/TZVPP,COSMO calculated adiabatic electron detachment energies. Correlations with HOMO energies of the anions are nearly as good, even though the oxidized forms are subjec…

Horizontal scan rateIcosahedral symmetrySubstituentElectronIonInorganic ChemistryPt electrodechemistry.chemical_compoundCrystallographychemistryComputational chemistryCarboranePhysical and Theoretical ChemistryCyclic voltammetryInorganic Chemistry
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Photomodulation of Two-Dimensional Self-Assembly of Azobenzene-Hexa-peri-hexabenzocoronene-Azobenzene Triads

2019

International audience; Achieving exquisite control over self-assembly of functional polycyclic aromatic hydrocarbons (PAH) and nanographene (NG) is essential for their exploitation as active elements in (nano)technological applications. In the framework of our effort to leverage their functional complexity, we designed and synthesized two hexa-peri-hexabenzocoronene (HBC) triads, pAHA and oAHA, decorated with two light-responsive azobenzene moieties at the pseudo-para and ortho positions, respectively. Their photoisomerization in solution is demonstrated by UV–vis absorption. 1H NMR measurements of oAHA suggested 23% of Z-form can be obtained at a photostationary state with UV irradiation …

Technology[CHIM.MATE] Chemical Sciences/Material chemistryGeneral Chemical EngineeringHexa-peri-hexabenzocoronene[CHIM.MATE]Chemical Sciences/Material chemistry02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistry01 natural sciences0104 chemical scienceschemistry.chemical_compoundAzobenzenechemistryMaterials ChemistrySelf-assembly0210 nano-technologyddc:600
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