Carbonudum

[Leroy]

I was wondering how this molecule is built up. It is a molecule of carbon and silicon.

 

I was just ondering whether it would be like a salt and have a crystalline structure or whether it can be seen as a C-Si molecule bonded by a quadruple bond??

[greg1917]

SiC doesnt occur in molecular form, it exists as a giant covalent network and is stacked in a manner similar to diamond - tetrahedra of carbon and silicon. it has other stacking arrangements (hundreds) but this is the most basic and common arrangement. Carbon doesnt form quadruple bonds to my knowledge.

[Bsun]

I'm fairly sure that no atoms form quadruple bonds. The strongest bond I'm aware of is the N to O bond in NO+, which has a BO of 3.

[Leroy]

if you search with google for quadruple bonds you will get a list of sites explaining how metals can for quadruple bonds and why carbon can't normally etc.

 

http://www.wikipedia.org/wiki/Covalent_bond

 

http://stanley.chem.lsu.edu/webpub/4571-Notes/chap10-MM-bonding.doc

 

those are but several of the search results.

[YT2095]

SiC (carborundum) is a hexagonal crystal, green/Black in color otherwise known as silicon carbide.

I`ve got to go now, I`ll finish this later )

[wolfson]

Both Crabon and Silicon CAN form quadruple bonds.

[wolfson]

Of course relatively speaking they would both explode, unless they were in “ideal” conditions, vacuum for C2 and I’m not sure for S2. So you have quadruple bonds BUT very unstable. Hmm a bit like me when I think (very) unstable.