This study investigates the mechanochemical reactions between AgBr 3-picolylamine and 4-picolylamine. The use of different stoichiometry ratios of the reagents allows [(AgBr)(n-pica)](n) and [(AgBr)(2)(n-pica)](n) to be obtained, and we report the new structures of [(AgBr)(2)(3-pica)](n) and [(AgBr)(2)(4-pica)](n) which are characterized by the presence of the following: (a) infinite inorganic chains, (b) silver atom coordinated only by bromide atoms and (c) argentophilic interactions. Furthermore, we studied the interconversion of [(AgBr)(n-pica)](n)/[(AgBr)(2)(n-pica)](n) by mechanochemical and thermal properties. The in situ experiments suggest that [(AgBr)(3-pica)](n) is kinetically favoured while [(AgBr)(2)(3-pica)](n) is converted into [(AgBr)(3-pica)](n) only with a high excess of the ligand. Finally, the liquid nature of the ligands is not sufficient to assist the grinding process, and the complete reaction is observed with the addition of a small quantity of acetonitrile.

Liquid reagents are not enough for liquid assisted grinding in the synthesis of [(AgBr)(n-pica)]n / Caterina Zuffa; Chiara Cappuccino; Lucia Casali; Franziska Emmerling; Lucia Maini. - In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS. - ISSN 1463-9076. - STAMPA. - 26:6(2024), pp. 5010-5019. [10.1039/D3CP04791A]

Liquid reagents are not enough for liquid assisted grinding in the synthesis of [(AgBr)(n-pica)]n

Caterina Zuffa;Chiara Cappuccino;Lucia Casali;Lucia Maini
2024

Abstract

This study investigates the mechanochemical reactions between AgBr 3-picolylamine and 4-picolylamine. The use of different stoichiometry ratios of the reagents allows [(AgBr)(n-pica)](n) and [(AgBr)(2)(n-pica)](n) to be obtained, and we report the new structures of [(AgBr)(2)(3-pica)](n) and [(AgBr)(2)(4-pica)](n) which are characterized by the presence of the following: (a) infinite inorganic chains, (b) silver atom coordinated only by bromide atoms and (c) argentophilic interactions. Furthermore, we studied the interconversion of [(AgBr)(n-pica)](n)/[(AgBr)(2)(n-pica)](n) by mechanochemical and thermal properties. The in situ experiments suggest that [(AgBr)(3-pica)](n) is kinetically favoured while [(AgBr)(2)(3-pica)](n) is converted into [(AgBr)(3-pica)](n) only with a high excess of the ligand. Finally, the liquid nature of the ligands is not sufficient to assist the grinding process, and the complete reaction is observed with the addition of a small quantity of acetonitrile.
2024
Liquid reagents are not enough for liquid assisted grinding in the synthesis of [(AgBr)(n-pica)]n / Caterina Zuffa; Chiara Cappuccino; Lucia Casali; Franziska Emmerling; Lucia Maini. - In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS. - ISSN 1463-9076. - STAMPA. - 26:6(2024), pp. 5010-5019. [10.1039/D3CP04791A]
Caterina Zuffa; Chiara Cappuccino; Lucia Casali; Franziska Emmerling; Lucia Maini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/959165
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