Organic Chemistry

481 You have now worked through many problems that asked you to design the synthesis of an organic compound. But if you were act ...

482 13 Mass Spectrometry and Infrared Spectroscopy 2.5 2.6 2.7 2.8 2.9 3 3.5 4 4.5 4000 3800 3600 3400 3200 3000 2800 2600 2400 ...

Introduction 483 that the unknown compound is an aldehyde; if a mirror does not form, you know that the compound is not an aldeh ...

484 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy 13.1 Mass Spectrometry At one time, the molecular weight of a compoun ...

Section 13.2 The Mass Spectrum • Fragmentation 485 fragments are not attracted to the negatively charged plates and therefore ar ...

486 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy The way a molecular ion fragments depends on the strength of its bond ...

2-Methylbutane is more likely than pentane to lose a methyl radical, because, when it does, a secondarycarbocation is formed. In ...

488 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy 13.3 Isotopes in Mass Spectrometry Although the molecular ions of pen ...

Section 13.4 Determination of Molecular Formulas: High-Resolution Mass Spectrometry 489 Mass spectra can show peaks as a result ...

490 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy PROBLEM 6 Which molecular formula has an exact molecular mass of 86. ...

(85 kcal/mol) bonds have similar strengths, and the species that is formed is a relative- ly stable cation, since its positive c ...

492 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy m/z 100 50 0 0 10203040506070809010011012 0 Relative abundance 41 43 ...

Section 13.5 Fragmentation at Functional Groups 493 m/z 0 10203040506070809010 0 100 80 60 40 20 0 Relative abundance m/z 0 1020 ...

494 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy m/z CH 3 CH 2 CH 2 CH 2 CHCH 3 OH 100 80 60 40 20 0 0 20 40 60 80 100 ...

Section 13.5 Fragmentation at Functional Groups 495 Fred Warren McLaffertywas born in Evanston, Illinois, in 1923. He received a ...

PROBLEM 12 Using curved arrows, show the principal fragments that would be observed in the mass spectrum of each of the followin ...

Section 13.6 Spectroscopy and the Electromagnetic Spectrum 497 13.6 Spectroscopy and the Electromagnetic Spectrum Spectroscopyis ...

498 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy The relationship between the energy (E) of a photon and the frequency ...

HCl a stretching vibration Section 13.7 Infrared Spectroscopy 499 13.7 Infrared Spectroscopy Stretching and Bending Vibrations T ...

500 CHAPTER 13 Mass Spectrometry and Infrared Spectroscopy 2.52.6 2.7 2.8 2.9 3 3.5 4 4.5 5 5.5Wavelength ( 6 μm) 7 8 9 10 11 12 ...