Part Corrated Laboratory Experiments EX Table 24.1 Physical properties bp 104 M.
ID: 559787 • Letter: P
Question
Part Corrated Laboratory Experiments EX Table 24.1 Physical properties bp 104 M.W ry th 84.1 296.7 0.868 2-methyl-3-butyn-2-ol mercury(II) sulfate 3-hydroxy-3-methyl-2-butanone 3-hydroxy-3-methylbutanal 0.953 102.1 102.1 Note: bp is in "C, density is in g/ml 3299.1 1168.2 707.2 2985.1 962.2 649.0 1365.4 888.6 558.3 2-methyl-3-butyn-2-ol OH CCH CHj CHC-CECH NEAT 25 26 27 28 29 3 NICOLET 20SX FT 3.5 4.5 89 10 40 - T 4000 3000 3600 3400 3200 3000 2800 2000 2400 2200 20001 1400 1200 1000 1800 800 600 Figure 24.1 IR spectrum of 2-methyl-3-butyn-2-ol. Directions Safety Notes Mercury(I) sulfate is very poisonous if inhaled or ineestrd DExplanation / Answer
Answer:
=> In the above spectrum of 2-methyl-3-butyn-2-ol, The O-H stretching freqency is at 3500 cm-1. This represents O-H is free, not in H-bonding with other compound.
=> The sharp peak at 3300 cm-1 is for stretching frequency for C-H in alkyne.
=> The C-H stretching frequency for alkane C-H is at 2850-3000cm-1.
=> The stretching frequency at 1350 cm-1 is for alfa-CH3 bending vibrations.
=> The C-O stretching frequency is at 1168 cm-1.
=> The strecthing frequencies at 962 and 886 cm-1 are for =C-H and =CH2 bending vibrations.
=> The peak from 650-770 cm-1 is for O-H out of plane bending.
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