Silicon monocarbide (SiC) was discovered in 1989 by
Cernicharo et al. in IRC +10216 with the
IRAM 30m telescope. This detection has evidently never been
Other detected silicon carbide species include: cylic
silicon dicarbide, cyclic silicon tricarbide, and linear
Although SiC is valence isoelectronic
with C2, they have different ground states. The coupling diagrams below show the 3Π
ground state of SiC and the 1Σ+ ground state of C2.