For example, Akira Sekiguchi of the University of Tsukuba, in Japan, oxidized a cyclotrigermene to form the aromatic cyclotrigermenylium cation in 1997. His group's similar attempts to make the ...

Aromatic rings consisting solely of metal atoms were, however, heretofore unknown. A research team recently succeeded in isolating such a metal ring and describing it in full.

The primary objective of this study was to determine the effect of aromatic compounds in gasoline on exhaust emissions of benzene. Previously reported studies have shown that benzene emissions ...