Freitas Sunny K S, Oliveira Felipe L, Dos Santos Thiago C, Hisse Danilo, Merlini Claudia, Ronconi Célia M, Esteves Pierre M
Instituto de Química, Universidade Federal do Rio de Janeiro, Av. Athos da Silveira Ramos, 149, CT, A-622, Cid. Univ., 21941-909, Rio de Janeiro, Brazil.
Departamento de Química Inorgânica, Universidade Federal Fluminense, Campus do Valonguinho, Outeiro São João Batista s/n, Centro, 24020-150, Niterói, RJ, Brazil.
Chemistry. 2021 Feb 1;27(7):2342-2347. doi: 10.1002/chem.202003554. Epub 2020 Dec 23.
A thermally stable carbocationic covalent organic network (CON), named RIO-70 was prepared from pararosaniline hydrochloride, an inexpensive dye, and triformylphloroglucinol in solvothermal conditions. This nanoporous organic material has shown a specific surface area of 990 m g and pore size of 10.3 Å. The material has CO uptake of 2.14 mmol g (0.5 bar), 2.7 mmol g (1 bar), and 6.8 mmol g (20 bar), the latter corresponding to 3 CO molecules adsorbed per pore per sheet. It is shown to be a semiconductor, with electrical conductivity (σ) of 3.17×10 S cm , which increases to 5.26×10 S cm upon exposure to I vapor. DFT calculations using periodic conditions support the findings.
一种名为RIO-70的热稳定碳正离子共价有机网络（CON）由廉价染料盐酸副蔷薇苯胺和均苯三酚三甲醛在溶剂热条件下制备而成。这种纳米多孔有机材料的比表面积为990 m²/g，孔径为10.3 Å。该材料在0.5 bar下的CO吸附量为2.14 mmol/g，在1 bar下为2.7 mmol/g，在20 bar下为6.8 mmol/g，后者相当于每片每孔吸附3个CO分子。它被证明是一种半导体，电导率（σ）为3.17×10⁻⁴ S/cm，暴露于碘蒸气后增加到5.26×10⁻⁴ S/cm。使用周期性条件的密度泛函理论计算支持了这些发现。
