triplet H3 H3 sextet Peak A, corresponding to the two H protons, is a triplet(three lines). This is because there are two adjacent H, protons (2+1=3) Peak B, corresponding to the two H2 protons, is a sextet(six lines ). This is because there are five adjacent protons two h, and three h,(5+1=6) Peak C, corresponding to the three H3 protons, is a triplet(three lines). This is because there are two adjacent H2 protons (2+1= 3) Spin-spin splitting, also known as coupling, can get much more complicated than this, but we'll stick to simple systems for now It is very important to remember that spin-spin splitting and peak integrals are not related. The multiplicity of a peak does not have any correlation to the number of protons absorbing energy at that frequency! There is a useful table on p. 301 of Zubrick that will help you assign the peaks in the H NMR spectra you will be obtaining this monthCl C C C H3 H1 H1 H2 H2 H3 H3 triplet sextet triplet • Peak A, corresponding to the two H1 protons, is a triplet (three lines). This is because there are two adjacent H2 protons (2 + 1 = 3). • Peak B, corresponding to the two H2 protons, is a sextet (six lines). This is because there are five adjacent protons, two H1 and three H3 (5 + 1 = 6). • Peak C, corresponding to the three H3 protons, is a triplet (three lines). This is because there are two adjacent H2 protons (2 + 1 = 3). • Spin-spin splitting, also known as coupling, can get much more complicated than this, but we'll stick to simple systems for now. • It is very important to remember that spin-spin splitting and peak integrals are not related. The multiplicity of a peak does not have any correlation to the number of protons absorbing energy at that frequency! • There is a useful table on p. 301 of Zubrick that will help you assign the peaks in the 1 H NMR spectra you will be obtaining this month. 9