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Lecture+16+-+Spectroscopy - Final Exam Thu Sep 8 2011 10:00...

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Final Exam Thu, Sep 8, 2011 10:00 – 11:40 am Chapters 11, 12.1 – 12.7, 14.1, 14.3 – 5 Closed Book and Closed Notes No electronic devices except calculator At least one assigned homework problem will appear on the exam. Review session on Wed Sep 7 at 4:00 pm in 179 Chem Practice Final Exam on website.
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Nuclear Magnetic Resonance (NMR) I Neutrons Protons Spin ( I ) Examples even even 0 12 C 6 , 16 O 8 even odd ½ 1 H, 15 N 7 , 19 F 9 odd even ½ 13 C, 31 P odd odd 1 2 H, 14 N Δ E = ħ ω 0 = ħ γ B 0 HO – CH 2 – CH 3 2 0 B E γ α h = 2 0 B E γ β h = ν (MHz) 0 0 B γ ω = π ω ν 2 0 0 = = h ν 0 π 2 h = h 10 6 -fold smaller than Δ E for e- transition ν = 800 MHz, λ = 0.375 m B 0 = 0 800,000,000 Hz 800,002,400 800,004,000 B 0 = 18.8 T E - μ · B o
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