Experimental and theoretical study on cation-π interaction of the univalent silver cation with [7]helicene in the gas phase and in the solid state

- ESI-MS method and X-ray crystallography were used for characterization of cation-π interaction.
- [7]Helicene-Ag+ complex was proven to be present in the gas phase.
- Orthorhombic crystals of [7]helicene-silver triflate-1.5 hydrate were formed in the solid state.