Organic Chemistry

Section 13.8 Characteristic Infrared Absorption Bands 501 Wavelength (μm) Wavelength (μm) 40003800360034003200300028002600240022 ...

502 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy in Chapter 14 give you the opportunity to identify compounds, using i ...

Section 13.10 The Position of Absorption Bands 503 The intensity of an absorption band also depends on the number of bonds respo ...

bonds show stretching vibrations in the region from 1200 to but these vibrations are weak and of little value in identifying com ...

Section 13.10 The Position of Absorption Bands 505 2.52.6 2.7 2.8 2.9 3 3.5 4 4.5 5 5.5 6 7 8 9 10 11 12 13 14 15 16 40003800360 ...

506 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy Wavelength (μm) Wavenumber (cm−^1 ) 2.52.6 2.7 2.8 2.9 3 3.5 4 4.5 5 ...

PROBLEM 19 Which would show an absorption band at a larger wavenumber: a carbonyl group bonded to an hybridized carbon or a car ...

508 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy PROBLEM 21 Which will show an stretch at a higher wavenumber, ethano ...

Section 13.11 C¬HAbsorption Bands 509 sp^3 C H CH 3 C H Wavelength (μm) Wavenumber (cm−^1 ) 2.52.6 2.7 2.8 2.9 3 3.5 4 4.5 5 5.5 ...

510 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy C O % Transmittance Wavelength (μm) Wavenumber (cm−^1 ) 2.52.6 2.7 2. ...

Section 13.13 Absence of Absorption Bands 511 bending vibrations for hydrogens bonded to carbons give rise to absorp- tion bands ...

or bonds. We may deduce, then, that the compound is an ether. Its absorption bands show that it has only hybridized carbons and ...

Section 13.14 Infrared Inactive Vibrations 513 them. When the bond stretches, the increasing distance between the atoms in- crea ...

514 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy 2.5 2.6 2.72.82.9 3 3.5 4 4.5 5 5.5 6 7 8 9 10 11 12 13 14 15 16 4000 ...

Section 13.15 Identifying Infrared Spectra 515 Compound 3. The absorptions in the region in Figure 13.31 indicate that hydrogens ...

516 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy 2.5 2.6 2.72.82.9 3 3.5 4 4.5 5 5.5 6 7 8 9 10 11 12 13 14 15 16 4000 ...

Problems 517 one chlorine atom; if the M and peaks are about the same height, the compound contains one bromine atom. Characteri ...

518 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy g. j. and h. k. i. cis-2-butene and trans-2-butene l. a. How could y ...

Problems 519 Wavelength (μm) Wavenumber (cm−^1 ) 2.52.6 2.7 2.8 2.9 3 3.5 4 4.5 5 5.5 6 7 8 9 10 11 12 13 14 15 16 4000380036003 ...

520 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy What peaks in their mass spectra would be used to distinguish betwee ...