https://pubs.rsc.org/en/content/articlelanding/2005/nj/b415401k
Weak interactions between resorcinarenes and diquaternary alkyl ammonium cations - New Journal of...
The interactions of resorcin[4]arenes 1 with alkyl ammonium cations bearing a 1,4-diazabicyclo[2.2.2]octane (DABCO) scaffold (32+, 42+ and 52+) were analyzed...