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INFRARED (IR) SPECTROSCOPY
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IR Spectroscopy – The Spectrum
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IR Spectroscopy
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h IR Spectroscopy - Theory
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Energy is proportional to the frequency n of the vibration Frequency is related to the force constant (K) and the Reduced mass ( E n = (n + ½)h, n = 0, 1, 2, 3,…. IR – Bond Properties and Absorption Trends The molecule may possess only quantized amounts of energy.
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IR – Bond Properties and Absorption Trends
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IR – Modes of Stretching and Bending
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IR – Correlation Chart
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IR – Pentane; neat vs gas phase vs CCl 4 solution neat CCl 4 solution Gas phase
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IR – Alkyl Halides
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IR – Alkenes
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IR – Alkenes: Out Of Plane bending (the oop region)
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IR – Alkynes 1-heptyne
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IR – Aromatics
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IR – Aromatics; Substitution Pattern
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IR – Alkenes: Out Of Plane bending (the oop region)
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IR – Alcohols and Phenols
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IR – Alcohols; 1 o vs 2 o vs 3 o
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IR – Unknown (C 6 H 14 O)
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IR – Ethers
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IR – Carbonyl compounds
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IR – Ketones Conjugation effects
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IR – Ketones Conjugation effects
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IR – Aldehydes
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UNKNOWN C 8 H 8 O
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IR – Carboxylic Acids
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IR – Esters
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UNKNOWN C 8 H 8 O 2
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IR – Amides
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Nitrogen Containing Compounds Amides Amines Nitro- Nitrile
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IR – Amides C 5 H 11 NO Isomers
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IR – Amines (Anilines)
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IR – Nitriles and Nitros
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IR Problem 5c (page 92, Intro to Spectroscopy, 3 rd Ed.)
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IR Problem 5g (page 94, Intro to Spectroscopy, 3 rd Ed.)
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