Sciencemadness Discussion Board

Does sulfur monoxide exist?

madscientist - 21-8-2002 at 11:09

Does sulfur monoxide exist? I haven't seen any mention of it anywhere.

Yes

vulture - 21-8-2002 at 11:29

other sulfuroxides: SO4, S2O, S2O2, S2O3, S2O7, Cyclooctasulfuroxide and others S5-10O. Stabilisation through metal complexes is necessary.

madscientist - 30-8-2002 at 22:01

I just purchased an advanced inorganic chemistry textbook. Here's what it says.

The lower oxide of sulfur is produced when a glow discharge is passed through SO2 and in other ways, and was long thought to be SO. However, gases of this composition are equimolar mixtures of S2O and SO2. The extremely reactive biradical, SO, can be detected as an intermediate in the reactions, however, and (SO)2 has also been detected by mass spectrometry. S2O is believed to have the structure SSO. It is unstable at ordinary temperatures decomposing to SO2 and polymeric oxides; it is orange-red when condensed from the gas phase at -196C.

PHILOU Zrealone - 10-4-2003 at 14:45

At least 13 proven oxydes of S are known to exist!And SO2/SO3 are the most stable and used economicaly!

6 homocyclic cyclo SxO (5<x<10) are made by oxydation of appropriate cyclo Sx with CF3-CO3H at -30°C!

S7O2 and S6O2 are known too

Thermaly unstable acyclic oxides S2O, S2O2, SO and the fugitive SOO and SO4!

S(g)+ SO2(g) -electric discharge->SO (life time 1s)

2SO --> S=S=O + 1/2O2
2S=S=O --> SO2(g) + 3S

:cool:

PHILOU Zrealone - 10-4-2003 at 14:49

6 homocyclic cycloSxO (5 < x < 10)
made by reactiona t - 30°C of CF3-CO3H upon related cycloSx!