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in this video weamp;#39;re going to go over the multiplicity of a proton nmr signal and the multiplicity is basically the number of peaks that we see in the signal so on the left here we have just one signal and thereamp;#39;s no splitting pattern so this is just a singlet here it splits into two parts this is a doublet and below it you can see the intensity ratio of those two peaks itamp;#39;s a one-to-one ratio next we have a triplet which appears as three signals itamp;#39;s really one signal but split into three and the intensity ratio for that is one two one if it splits into four parts you have a quartet and four five is a quintet six is a sextet and seven is a septet sometimes if you have more than four like if you have five or more you could just call it a multiplet sometimes which might be easier uh to do it that way now letamp;#39;s focus on the intensity ratios that we see for like a quartet or a quintet you donamp;#39;t have to memorize these numbers because thereamp
