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16 Cards in this Set
- Front
- Back
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When is gauche configuration more stable?
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When the force between the substituents is attractive
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O-H (H bonding)
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3200-3600, broad
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N-H amides, amines
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3200 – 3500
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As the s character increases, the bond grows stronger and the IR ...
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increases
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Aldehyde
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2900, 2700
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Carbonyl strength
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Ester > aldehyde > ketone > acid > aryl ketone > alpha, beta unsaturated ketone
around 1700 |
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Ultraviolet/visible Spectroscopy
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As conjugation increases, so does the wavelength of lambda max
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Pascal's Triangle
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1
11 121 1331 14641 |
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ppm of Carboxylic acid
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10 - 12
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ppm of aldehyde
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9 - 9.8
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Benzene
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7.0-7.4
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Benzene substitution
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Ortho (closest) then meta then para
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Sp3 carbon CNMR shift
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0 - 50
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Sp3 carbon CNMR shift next to electronegative atom
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50 - 100
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sp2 hybridized carbon CNMR shift
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100 - 150
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Carbonyl carbon CMR shift
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180 - 230
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