Nitrate and nitrite silver complexes with weakly coordinating nitriles

• Published in: Polyhedron Vol. 220; p. 115831
• Main Authors: Gutmańska, Karolina, Ciborska, Anna, Hnatejko, Zbigniew, Dołęga, Anna
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-07-2022
• Subjects: FT-IR; Luminescent properties; Nitrate; Nitriles; Nitrite; Silver(I) complexes; X-ray crystal structures; X-ray crystal structures; Nitrate; Silver(I) complexes; Nitriles; FT-IR; Nitrite; Luminescent properties
• ISSN: 0277-5387
• DOI: 10.1016/j.poly.2022.115831

Relatively simple system of weak nitrile ligands and silver nitrite/nitrate allowed the formation and isolation of coordination compounds of diverse nuclearity and dimensionality. The extension of the network does not enhance the luminescent properties of the ligands however it gives rise to the new MLCT bands in the visible region.
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The structures and luminescent properties of silver(I) complexes with weakly coordinating nitrile ligands: 1,4-dicyanobenzene (1,4-dcb) and 3-cyanopyridine (3-cpy) and nitrite or nitrate coordination are investigated. One molecular complex [Ag(3-cpy)2(NO2)], one 1-D coordination polymer [Ag(3-cpy)2NO3]∞ and two rare 2-D [Ag3(3-cpy)2(NO2)3]∞ and 3-D [Ag2(1,4-dcb)(NO3)2]∞ coordination polymers are described. Coordination of the luminescent ligands does not enhance their emission properties, however extension of coordination network may lead to new emission bands in the visible region.