1This may be due to the fact that : CO uses p-pi - p-pi orbitals for double bond formation , while SiO uses p-pi - d-pi bonding for double bond formation.
A simple question --why is CO more stable than SiO ??
I initially thought that the size mattered , or simply inert pair effect was there . But that was
not the answer at all !!!
Try , fellows
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5 Answers
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1Yes , but still SiO should not be too unstable according to your answer , isn't it ? But in fact it is very
unstable.
3if u know the radius ratios of the two ,u can get a conclusion,we know dat like carbon, silica is also in fcc arrangement.
11CO is highly stable,,aieee said how..
have a look at this --
Stability of Silicon Monoxide
To The Editor:
An error in the article entitled Speciality chemicals by
John Haschke [J. Chem. Educ., 52, 157 (1975)] should be
corrected. Silicon monoxide solid is not only preparable in
the laboratory, but it is available commercially in ton lots.
It is not stable between 1150 and 1300°C, but is thermodynamically
unstable at all temperatures.' However, like metastable
carbon monoxide solid, it can be quenched from the
gaseous phase. Both carbon monoxide gas and silicon monoxide
solid will disproportionate upon heating above room
temperature, especially in the presence of appropriate catalysts,
hut properly prepared silicon monoxide solid can be
retained at room temperature indefinitely.
Leo Brewer
University of California
Berkeley, California 94720
1i guess its because of the size factor.the size difference between si & o will not allow strong overlapping of the p orbitals responsible for pi bonds.