Introducing pillarpyridinium – the first of a new family of macrocycles
Scientists in Poland have made the most compact multiply charged macrocycle to date. Pillarpyridinium is a cyclic tetramer consisting of four pyridyl units with methylene bridges between their nitrogens and para carbons. The quadruply charged molecule has a very symmetrical and incredibly strained structure. It represents a new class of cationic macrocycles, the pillar[n]pyridiniums.
Read the full story by Jennifer Newton on Chemistry World.