Chromatographic properties of graphitized thermal carbon black modified with a monolayer of liquid crystal

Isomer-Selective Properties of Carbon Adsorbent Modified by "4-n-octyloxy-4'-cyanobiphenyl – β-Cyclodextrin" under Gas-Adsorption Chromatography Conditions

“…Cryst. and their Appl., 2018, (4) ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Fig. 7.…”

“…An investigation of the thermal stability of the LC monolayers on graphitized thermal black and its analogs has shown that strong intermolecular interactions of planar molecules of mesogen with the adsorbent carrier sharply increase the starting temperature of the thermal desorption, which is important for practical gas chromatography. Moreover, carbon adsorbents modified with LC monolayers have selectivity to structural isomers over a wider temperature range than LC stationary phases, thus, making possible faster separation of high-boiling isomers under conditions of the gasadsorption chromatography [4][5][6][7][8][9][10][11].…”

Study of the Adsorption Layer of Nematic Mesogen with Branched End Fragments at the Carbon Adsorbent Surface

“…After modification Henry constants' reduction has been observed for all researched substances. That is specific for modifications of graphite thermal soots by molecules forming dense monolayers capable of shielding the carbon substrate surface [6,10].…”

“…At present there are sufficiently many studies of gas phase organic compound adsorption on mono-and polylayers of various mesogens (liquid crystals (LC)), as well as their structures [3][4][5][6][7]. Mesogen compounds with branched end fragments belong to a special group.…”

The isomers of phenalene and their singlet and triplet states: A Hartree–Fock and density functional computational investigation

“…1. However, only the 1H-isomer has apparently been investigated; neither the 2H-nor the 3aH-isomer has been reported, while a search of the literature reveals references [5][6][7] to the 9bH-isomer but with no definitive experimental or computational data reported. (Careful examination of these references indicates that the molecules reported as the 9bH-isomer may actually be reports of the 1H-isomer mistakenly depicted as the 9bH-isomer.…”