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Cobalt and IronPhthalocyanineDerivatives: Effectof Substituents onthe Structure of ThinFilms and TheirSensor Response to… :научное издание Klyamer DaryaShao WenpingKrasnov Pavel2023 год

Cobalt and Iron Phthalocyanine Derivatives: Effect of Substituents on the Structure of Thin Films and Their Sensor Response to Nitric Oxide : научное издание
статья из журнала

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База данных: Каталог библиотеки СФУ
Библиографическое описание: Cobalt and Iron Phthalocyanine Derivatives: Effect of Substituents on the Structure of Thin Films and Their Sensor Response to Nitric Oxide : научное издание / D. D. Klyamer [et al.]. - Текст : непосредственный // Biosensors. - 2023. - Т.13, №4. - P. 484. - ISSN 2079-6374, DOI 10.3390/bios13040484.
Аннотация: <jats:p>In this work, we study the effect of substituents in cobalt(II) and iron(II) phthalocyanines (CoPcR4 and FePcR4 with R = H, F, Cl, tBu) on the structural features of their films, and their chemi-resistive sensor response to a low concentration of nitric oxide. For the correct interpretation of diffractograms of phthalocyanine films, structures of CoPcCl4 and FePcCl4 single crystals were determined for the first time. Films were tested as active layers for the determination of low concentrations of NO (10–1000 ppb). It was found that the best sensor response to NO was observed for the films of chlorinated derivatives MPcCl4 (M = Co, Fe), while the lowest response was in the case of MPc(tBu)4 films. FePcCl4 films exhibited the maximal response to NO, with a calculated limit of detection (LOD) of 3 ppb; the response and recovery times determined at 30 ppb of NO were 30 s and 80 s, respectively. The LOD of a CoPcCl4 film was 7 ppb. However, iron phthalocyanine films had low stability and their sensitivity to NO decreased rapidly over time, while the response of cobalt phthalocyanine films remained stable for at least several months. In order to explain the obtained regularities, quantum chemical calculations of the binding parameters between NO and phthalocyanine molecules were carried out. It was shown that the binding of NO to the side atoms of phthalocyanines occurred through van der Waals forces, and the values of the binding energies were in direct correlation with the values of the sensor response to NO.</jats:p>
Год издания: 2023
Авторы: Klyamer Darya , Shao Wenping , Krasnov Pavel , Sukhikh Aleksandr , Dorovskikh Svetlana , Popovetskiy Pavel , Li Xianchun , Basova Tamara
Источник: Biosensors
Выпуск: Т.13, №4
Номера страниц: 484
Держатель оригинала документа: International Research Center of Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk 660074, Russia, Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
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