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Si=O bond length

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lemonoman:
Okay, amateur question.

But for a lab report I'm writing, I need to know the bond length between silicon (Si) and oxygen (O).  And I absolutely can not find it, on the internet, it textbooks, anything.  Plenty (in fact almost ALL) include the bond length if it was a single bond...but none discuss the double bond length.

If anyone knows a textbook, journal, internet article, etc where I might find this value, it would be greatly appreciated!

Mitch:
A quick MM2 calculation puts it at 1.512 A that should be good enough for most purposes.

AWK:
See in International Tables for Crystallography in your library.
Si-O vary within 1.53 A (for trydimite) to 1.81 (for stishovite).
Hence all shorter than 1.53 A can be Si=O

DrCMS:
What are you making that might have an Si=O?

lemonoman:
I have already handed in my lab report for that class, but I will of course continue to answer/ask pertinent questions.

What I was doing was comparing the relative strengths of Si=O bonds against C=O bonds, with respect to an approximated overlap integral.  We used a formula to find S(r) where r is the bond length in Angstroms, and S is the value of the overlap (from 0 to 1).

The question was asked because we had just finished synthesizing a silicone polymer, from dichlorodimethylsilane.  I realize that this is a silane, not a ketone (or silicone, but the question asked referred specifically to a double-bonded oxygen.

So, in a nutshell, it was for comparison to Carbon.

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