Definition of annulene
- In 1991, a temperate rainforest near Puerto Montt in central Chile yielded a fungus that made annulene, a hydrocarbon that has a history going back to the first formulations of rocket fuel.
- —Buzzy Gordon, Americas, 1 Nov. 2007
- This class of annulenes, which have few hydrogens and are considered high-energy because of their numerous triple bonds, has also drawn attention as potential precursors to new carbon allotropes.
- —Elizabeth Wilson, Chemical & Engineering News, 3 Mar. 1997