[Fzang]

Of the following

[NO2]+, [N3] −, [ClO2]+, [NCO] −, OCS

I'm asked to pick out the one with the different structure than the others. As far as I know, all of them are straight linear, except for ClO2+ (if one of them has to differ?). I just can't seem to draw the correct structure for that one, if it's supposed to be not-linear. Can anyone give me some help? I've tried searching around but it doesn't really seem like the structure exists..

[DevaDevil]

see here

[Fzang]

Chloryl. I see 

Thanks.