Solvation structure of silver ions and atoms in acetonitrile

Square planar silver(I) complexes: A rare but increasingly observed stereochemistry for silver(I)

“…However, the square planar stereochemistry has also been assigned in solution to Ag(I) ions from electronic spectral [5,6] and electron spin-echo modulation studies [7].…”

X-ray Absorption Spectroscopy Study of the In-Solution Structure of Ni2+, Co2+, and Ag+ Solvates in Acetonitrile Including Multiple Scattering Contributions

“…(b) Ag + Acetonitrile Solvate Analysis. The studies concerning Ag + solution chemistry have long pointed out the lower coordination number for this cation. − Thus, in a first approach, the structure used was a tetrahedral distribution of acetonitrile molecules surrounding the silver cation through the nitrogen atom in a linear arrangement. In this case only N and C atoms from the cyanide group were required.…”

“…However, other studies pointed to different coordination numbers (two or even three) coordination polyhedron (square planar or linear) or even different ways of bonding (in a lateral way, through the triple bond C⋮N). − Thus, a electron-spin echo modulation study of a AgClO 4 solution in acetonitrile indicated that the solvation structure was formed by four acetonitrile molecules bonded to Ag + ion in a square-planar configuration in a side-on fashion, with their molecular dipoles oriented perpendicular to the plane, being the estimated distance from the silver cation to the center of the C≡N bond 2.3 Å …”

Electron spin resonance evidence for the structure of AgII and AgO solvates in acetonitrile

“…Thus for AgI, a-coordination occurs rather than the n-coordination postulated by Ichikawa et a1. 8 for AgI ions. This confirms our previous surmise1* and common expectation.…”