Question

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only one of the following entify and annotate on the spectrum all of the 1. Two sets of spectra are shown below. Each set corresponds to only one of the molecules. For each individual spectrum, identify and annotate on the spectru structural characteristics that can be determined from the spectrum. CN TZ CHO NH2 11 Which of the molecules shown above is characterized by Set 1? want to make us our countries are Which of the molecules shown above is characterized by Set 2? Set 1

Answer 1

Se+1] - Answer mass Daten ml2 = 102(m), 73, 43, # IR: Spectrum data si 3000 cror' 5 &-H stretching bond Vibrabicon. 1785cm R-C-OR ester Carbon 1210 crot > =C-o-bond of ester 1050 cmost 3 -(-0- bund ob ester SR-GOR ester Carbonyl present # IHNMR data Compound she Compound show 6 NMR Peak. Thus it has four sels ob hydrogen atom. 1.0(+) This amo data ise multiplicity of 1.8( Sextet) nmr peal match with Coorpound 2. 1(Singlet) B < 4.2 (quartet) 0 13C NMR data a sal 15ppm, 20.5, 21, 64, 170 7-do- Compound show five CMR Peak. Thus it has five type of owneque deut carbon The cor data match with compound II] Nog 8 (Sextet) 2.168) lo(t) * 20.5 170 2.2 (9) molecule (K] is characterized by set il

127.9 3.8117.8 SanCEN 128-8 22-9 - Lon22-9 128.07 1 1131-3 mless data m/2= 117(m+), 128-8 127.9 # molecular ivs at m 12 = 117 indicate Co weight =117. 2017 indicate Compound have molecular # com indicate Compound have one Thus Odd mass ols molecular icon indicate Compound na . odd number of nitrogen atom (Nitrogen rule). it is hitoogen containing Compound IR spectrum date 2250 cm = -c=n is presut ISW4600 -CEC in benzenering If Nor data Compound show carly two Peak in nno spectrum. This indicate compound have two types of hydrogen. In above example only compound d ie nitrogen containing Compound show two peak. Thus this nmo spectum match with compound (d) 3.8 (8) elo- 7.2 (m) @ Be NMR data Compound show only Sise peak in amr Spectrum. This indicate Compound have six types of carbon In above nitoogen containing compounel (@ps e have only molecule is charackaped by set 2 22.97 Ch six types of carbon 131.3 128.8 X 117.8 = -(EN 128.0 127.9