Aluminum Clusters (N=2-6) on CTF-0 Monolayer for Adsorption of Atrazine: Investigated by Density Functional Theory

IF 1.1 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Journal of the Mexican Chemical Society Pub Date : 2022-06-30 DOI:10.29356/jmcs.v66i3.1760
Marisol Ibarra Rodríguez, M. Sánchez
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Abstract

Abstract. We present a theoretical investigation of the structural characteristics and stabilities of neutral and positively charged aluminum clusters Aln n= 2-6 on covalent triazine frameworks (CTF-0). We found that clusters are adsorbed on the CTF-0 with adsorption energies of 26.32 – 91.53 kcal/mol. All calculations showed that the interaction between the aluminum cluster and CTF-0 is strong and prefers to adsorb in the central cavity of the monolayer with Al-C 2.03-2.92 Å and Al-N 1.89-2.12 Å bond formation. Next, we calculated the adsorption of an atrazine molecule on the [AlnCTF-0] n=2-6 systems. It is found that an atrazine molecule is physically adsorbed only on three systems, [AlnCTF-0] n=3-4,6 with adsorption energies in the range of 30.68 to 61.08 kcal/mol. The NBO analysis reveals that aluminum atoms accept electron density from nitrogen of atrazine molecule, but they also return electron density to the atrazine molecule. Although this result suggests that the [AlnCTF-0] n = 3-4,6 systems can be used as a promising candidate to remove the atrazine molecule.   Resumen. Presentamos una investigación teórica de las características estructurales y las estabilidades de los cúmulos de aluminio cargados positivamente y neutros Aln n = 2-6 en el fragmento de triazina covalente (CTF-0). Encontramos que los cúmulos se adsorben en el CTF-0 con energías de adsorción de 26.32 a 91.53 kcal/mol. Todos los cálculos mostraron que la interacción entre el cumulo de aluminio y CTF-0 es fuerte y prefiere adsorberse en la cavidad central de la monocapa con formación de enlaces Al-C 2.03-2.92 Å y Al-N 1.89-2.12 Å. Seguido, calculamos la adsorción de una molécula de atrazina en los sistemas [AlnCTF-0] n=2-6. Se encuentra que una molécula de atrazina se adsorbe físicamente sólo en tres sistemas, [AlnCTF-0] n=3-4,6 con energías de adsorción en el rango de 30.68 a 61.08 kcal/mol. El análisis NBO revela que los átomos de aluminio aceptan la densidad de electrones del nitrógeno de la molécula de atrazina, pero también devuelven densidad de electrones a la molécula de atrazina. Estos resultados sugieren que los sistemas [AlnCTF-0] n = 3-4,6 pueden usarse como candidatos prometedores para remover la molécula de atrazina.
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CTF-0单层上N=2-6的铝团簇吸附阿特拉津的密度泛函理论研究
摘要本文从理论上研究了中性和带正电的铝团簇Aln n= 2-6在共价三嗪框架(CTF-0)上的结构特征和稳定性。结果表明,CTF-0吸附团簇的吸附能为26.32 ~ 91.53 kcal/mol。计算结果表明,铝团簇与CTF-0之间的相互作用较强,更倾向于吸附在单层的中心空腔中,形成Al-C 2.03-2.92 Å和Al-N 1.89-2.12 Å键。接下来,我们计算了阿特拉津分子在[AlnCTF-0] n=2-6体系上的吸附。发现阿特拉津分子只在3个体系[AlnCTF-0] n=3-4,6上被物理吸附,吸附能在30.68 ~ 61.08 kcal/mol之间。NBO分析表明,铝原子从氮的阿特拉津分子中接受电子密度,但也将电子密度返回给阿特拉津分子。虽然这一结果表明[AlnCTF-0] n = 3-4,6体系可以作为去除阿特拉津分子的有希望的候选体系。Resumen。本文介绍了一种通过中性Aln n = 2-6的三嗪酸共价(CTF-0)片段,建立了一种新型的investigación teórica de las características结构物。Encontramos que los cúmulos se对CTF-0的吸附量为energías de adsorción de 26.32 a 91.53 kcal/mol。Todos los cálculos mostraron que la interacción entre el cumulo de alumo y CTF-0是首选吸附剂,en cavidad central de la monocapa con formación de entes Al-C 2.03-2.92 Å y Al-N 1.89-2.12 Å。[2]刘海涛,刘海涛,刘海涛,刘海涛,刘海涛,刘海涛,等。Se encuentra que una molcula de atrazina Se吸附físicamente sólo en res sistemas, [AlnCTF-0] n=3-4,6 con energías de adsorción en el rango de 30.68 a 61.08 kcal/mol。El análisis NBO querque los átomos de aluminio接受la densidad de electronones del nitrógeno de la molaccula de atrazina, pertamamacine发展densidad de electronones和la molaccula de atrazina。Estos resulttados sugien que los sistemas [AlnCTF-0] n = 3-4,6种不同类型的候选体prometedores para remover la molsamcula de atrazina。
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期刊介绍: The Journal of the Mexican Chemical Society (J. Mex. Chem. Soc.) is a scientific, blind, peer reviewed, and open access, free of charge publication that covers all areas of chemistry and its sub-disciplines (i.e. medicinal chemistry, natural products, electrochemistry, material science, computational chemistry, organic chemistry, bionirganic chemistry, etc). It is devoted to facilitating the worldwide advancement of our understanding of chemistry. It will primarily publish original contributions of research in all branches of the theory and practice of chemistry in its broadest context as well as critical reviews in active areas of chemical research where the author has published significant contribution. The J. Mex. Chem. Soc. is a quarterly publication which language of submission and publication is English. To be suitable for publication in J. Mex. Chem. Soc., manuscripts must describe novel aspects of chemistry, high quality of results and discussion an excellent bibliographic support, and contribute to the development of the field. Routine or incremental work are not suitable for publication in J. Mex. Chem. Soc. Authors are encouraged to send contributions in electronic form. Our online submission system guides you stepwise through the process of entering your article details and uploading your files.
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