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Multiple Line Structures

Posted: Tue Feb 28, 2017 8:12 pm
by Kevin_Li_2F
When drawing line structures, what makes one line structure more valid/correct than another? For example...

All represent 3,3-dimethylpentane, yet each differ slightly by bond angle or whether a line turns up or down.

Is there a standardized correct method for these line structures? For example I've noticed that when 3 lines come together, they tend to do so at congruent 120 degree angles, and 90 degrees for four lines.

Re: Multiple Line Structures

Posted: Wed Mar 01, 2017 9:55 am
by Shailyn_Moore_3C
You want to make your line structures still indicative of the bond angles. So this goes back to chem 14a so for example when you have a trigonal planar shape your angles will be close to 120 degrees.