Ag(I) complexes with alkylidene-bis(2-aminopyrimidines) as building units for discrete metallomacrocyclic frames. A structural and solution study.
Alkylidene-bis(2-aminopyrimidines) (pyr2Cx, x = 2-5) are useful ligands to interact with Ag(I) yielding discrete metallocycles. Crystal structures of the [(pyr2C2)Ag(NO3)]2 and [(H-pyr2C4)Ag(NO3)2]2 have been isolated where each macrocyclic moiety interacts with their surroundings through weak interactions, yielding 3D discrete structures, On the other hand, the solution study shows that the equilibrium constants for the formation of Ag(pyr2Cx)+ complexes are higher than the literature values for Ag(I) complexes with single pyrimidines, although the differences could be explained by invoking the solid-state structures of the Ag(I)-pyr2Cx complexes.
García-Raso
Angel
A
Departament de Química, Universitat de les Illes Balears, Palma de Mallorca, Spain.
Fiol
Juan J
JJ
Tasada
Andrés
A
Albertí
Francisca M
FM
Molins
Elies
E
Basallote
Manuel G
MG
Máñez
María A
MA
Fernández-Trujillo
María J
MJ
Sánchez
David
D