An alkylated pentacyclopentane organic crystal material, a capillary gas chromatographic column and a preparation method and application thereof

CN121895165BActive Publication Date: 2026-06-09LUOYANG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LUOYANG NORMAL UNIV
Filing Date
2026-03-26
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing pentaphylene functional materials cannot effectively separate complex mixtures, especially structurally complex isomer mixtures. Furthermore, existing gas chromatography stationary phases are prone to degradation and loss during high-temperature analysis, and their stability is insufficient.

Method used

An alkylated pentaphylene organic crystal material was developed. A pentaphylene organic crystal material with an orthorhombic crystal system was prepared through a specific chemical reaction. The material was then applied to a capillary gas chromatography column to separate mixtures of aliphatic compounds of different polarities, such as monosubstituted benzenes, n-alkanes, fatty acid methyl esters, ketones, aldehydes, alcohols, and bromoalkanes.

Benefits of technology

It achieves effective separation of complex mixtures, especially the separation of structurally complex isomer mixtures such as trimethylbenzene, trichlorobenzene, pentanol, nitrobenzaldehyde, methylnaphthalene, and dimethylnaphthalene. Furthermore, the material exhibits good stability at high temperatures and is not easily degraded, thus improving the repeatability and stability of chromatographic separation.

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Abstract

The application relates to an alkylated pentacene organic crystal material, a capillary gas chromatographic column and a preparation method and application thereof, relates to the gas chromatographic technology field, and the structural formula of the alkylated pentacene organic crystal material is; S1, adding p-benzoquinone, chloranil and naphthalene into acetic acid, heating and refluxing, and obtaining an intermediate I; S2, dissolving the intermediate I, sodium thiosulfate and potassium carbonate in an N, N-dimethylformamide solution, heating, carrying out a reduction reaction, cooling after the reaction is completed, and obtaining an intermediate II after post-treatment and purification of the product; S3, dissolving the intermediate II and 2-bromo hexyl acetate in an acetone-DMF mixed solvent, carrying out a substitution reaction, and obtaining the alkylated pentacene organic crystal material through purification and drying of the product. The application provides a pentacene material different from the prior art, enriches the type of the gas chromatographic stationary phase, and provides more optional technical schemes for the separation of complex mixtures.
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