So yes, they're close together, but not so much in space as in bonds (though it usually means in space, too).
]]>Anyway, hydrogens that are vicinal to each other split the peaks of their neighbors. The "mini-peaks" are not the same height as each other, but rather are governed by a ratio of heights. Here are the height ratios listed in a table of my book for multiplets from a doublet to a septet:
1:1
1:2:1
1:3:3:1
1:4:6:4:1
1:5:10:10:5:1
1:6:15:20:15:6:1
Does that look familiar to anyone else? Score one for Pascal!
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