Abstract
The salt 1ṁ4PF6·3CH3CN is a new type of host molecule, which shows similarities to zeolites but is constructed from organic and inorganic ions. The macrocyclic tetracation 1 can be prepared in two steps from bipyridine and 1,4-bis(bromomethyl)benzene. Calculations and X-ray crystallography showed the tetracation to have a box-like structure in which the p-phenylene and paraquat units are slightly bent. The PF-salt of 1 is soluble in organic solvents, the Cl⊖ salt in water. 1·4PF6 in acetonitrile forms weak inclusion complexes with dimethoxybenzenes, which are stabilized by charge-transfer interactions. Structural studies of the inclusion complexes show that the electron-rich guest molecules are located in the cavities (2); because of the stapling of the alternating tetraction and anion/neutral molecule layers these cavities take the form of channels.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Angewandte Chemie International Edition in English
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
