Metal-Assisted and Solvent-Mediated Synthesis of Two-Dimensional Triazine Structures on Gram Scale

Faghani, A. ; Gholami, M.F. ; Trunk, M. ; Müller, J. ; Pachfule, P. ; Vogl, S. ; Donskyi, I. ; Li, M. ; Nickl, P. ; Shao, J. ; Huang, M.R.S. ; Unger, W.E.S. ; Arenal, R. (Universidad de Zaragoza) ; Koch, C.T. ; Paulus, B. ; Rabe, J.P. ; Thomas, A. ; Haag, R. ; Adeli, M.

Resumen: Covalent triazine frameworks are an emerging material class that have shown promising performance for a range of applications. In this work, we report on a metal-assisted and solvent-mediated reaction between calcium carbide and cyanuric chloride, as cheap and commercially available precursors, to synthesize two-dimensional triazine structures (2DTSs). The reaction between the solvent, dimethylformamide, and cyanuric chloride was promoted by calcium carbide and resulted in dimethylamino-s-triazine intermediates, which in turn undergo nucleophilic substitutions. This reaction was directed into two dimensions by calcium ions derived from calcium carbide and induced the formation of 2DTSs. The role of calcium ions to direct the two-dimensionality of the final structure was simulated using DFT and further proven by synthesizing molecular intermediates. The water content of the reaction medium was found to be a crucial factor that affected the structure of the products dramatically. While 2DTSs were obtained under anhydrous conditions, a mixture of graphitic material/2DTSs or only graphitic material (GM) was obtained in aqueous solutions. Due to the straightforward and gram-scale synthesis of 2DTSs, as well as their photothermal and photodynamic properties, they are promising materials for a wide range of future applications, including bacteria and virus incapacitation.

Idioma: Inglés

DOI: 10.1021/jacs.0c02399

Año: 2020

Publicado en: Journal of the American Chemical Society 142, 30 (2020), 12976-12986
ISSN: 0002-7863

Factor impacto JCR: 15.419 (2020)

Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 15 / 178 = 0.084 (2020) - Q1 - T1

Factor impacto SCIMAGO: 7.115 - Biochemistry (Q1) - Colloid and Surface Chemistry (Q1) - Chemistry (miscellaneous) (Q1) - Catalysis (Q1)

Financiación: info:eu-repo/grantAgreement/EC/H2020/785219/EU/Graphene Flagship Core Project 2/GrapheneCore2
Financiación: info:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3
Financiación: info:eu-repo/grantAgreement/EC/H2020/881603/EU/Graphene Flagship Core Project 3/GrapheneCore3
Financiación: info:eu-repo/grantAgreement/ES/MICINN/GATES-PCI2018-093137
Financiación: info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/MAT2016-79776-P

Tipo y forma: Artículo (PrePrint)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)