Abstract
A structural study on a series of Ag(I) complexes with a new, flexible, dipodal ligand 1,3-bis[(imidazol-2-yl)thiomethyl]benzene (L) and counterions BF4− (1), SbF6− (2), PF6− (3), CF3SO3− (4) and NO3− (5) was performed. The final synthetic products were characterised by (SC/P)XRD analyses which revealed structural diversity ranging from mononuclear (1–3, 4b), over dinuclear (4a), to 1D polymeric (5) species with a 1 to 1 metal to ligand ratio. Analysis of the coordination geometries around the silver ions uncovered that the ligand could adopt two different coordination modes, namely linear arrangements resulting from the N,N-chelating behaviour of the ligand’s N-imine atoms in mononuclear species, and a T-shaped geometry, as a result of the additional involvement of a sulphur atom. Furthermore, argentophilic ligand supported and unsupported interactions have been revealed in 4a and 4b. The presence of an amine group facilitates the formation of hydrogen bonds.
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