Quadrupolar [14](meta-para)2Heterophanes and [14]metaHeterophanes Containing Stable 3,5-Bis[1-methyl-4(3)-pyridiniomethyl]-1,2,4-triazolate Building Block
Application of the Kauffmann Areno-Analogy Principle − Stability towards Oxidation of the Methylene Spacers in Quadrupolar [14]Heterophane Frameworks Incorporating 4- or 3-Pyridiniomethyl-1,2,4-triazolate Betaine Units
Incorporation of 3,5-bis-3(4)-pyridiniomethyl-1,2,4-triazolate units into the structures of novel bis-betaines in [1(4)](metapara)(2)heterophane systems has shown that the structural features conferred by the heterophane framework result in macrocycles that, in contrast to their building blocks, are stable towards oxidation. The stability of [1(4)]metaheterophanes is consistent with their betaine subunits.