Crystal and molecular structure of potassium 18-crown-6-[2,6-bis(dimethylaminomethyl)phenyl]tin(IV) tetrafluoride.

The crystal structure of the title compound shows the [K(18-crown-6)]⁺ cation and [{2,6-(Me₂NCH₂)₂C₆H₃}SnF₄]^- anion, which are held together through two potassium-fluorine and one potassium-tin electrostatic interaction. The tin atom is hexacoordinated by one carbon and four fluorine atoms, and an intramolecular N→Sn interaction. It has a distorted octahedral configuration. Electrostatic interactions between two fluorine atoms and hydrogen atoms from two different cation-anion pairs generate a double-chain polymeric supramolecular structure, containing both isomers. [ABSTRACT FROM AUTHOR]