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Draw the most important resonance contributor of the following structure? I'm confused on this one

o
/ \
double bond -> \\ /
- CH+

11 answers

ahh it didn't show
ahh it didn't show
o
/ \
\\ /
-CH+
Spacing is a problem with these boards; therefore, we can't draw structures, lewis dot structures, etc. If you will name the compound or describe it someway, I may be able to find the resonance structures on the web.
I do have a picture but I can't show the url

well I believe its a cyclopentdiene

the number is going from the right the 1 is a oxygen and the 3 is CH+ and the double bond is located between 4 and 5
show the url by placing a space between each character.
img17.imageshack .us/img17/6517/cycloo.jpg
I can't draw any of the structures, of course; however, shift the double bond from its present position to the bottom (counting O as #1 position and going clockwise) between C2 and C3. Remove the + sign from C3 (where it now resides) and place the + charge on C5. Check my thinking. Moving the double bond then to C2-3 do likewise. You will need to count the charges to see where the + sign resides. Continue in this fashion until you get back to the original structure. Don't neglect placing a charge on the O if that is needed.
like this?
img198.imageshack .us/img198/7855/trialt.jpg
http://img17.imageshack.us/img17/6517/cycloo.jpg
http://img198.imageshack.us/img198/7855/trialt.jpg

I have copied the two jpg images to this page. Actually, I meant for the double bond to be between the lower C atoms.
oh thank you but when I tried it seems there is another structure in which all atoms have their octet
ahh I got it the C5 and O need to be double bonded