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Organic Chemistry 2 > IR PEAKS > Flashcards

IR PEAKS Flashcards

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1
Q

What does it mean when IHD is 1,2, or 4?

A

1: double bond or ring
2: alkyne (triple bond)
4: benzene

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2
Q

What are the common ppm or chemical shifts for Alkynes?

A

3

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3
Q

What is the wave number for an O-H bond?

A

O-H: 3300-3600

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4
Q

What is the wave number for a CH sp3 carbon bond?

A

CH-sp3: 2900

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5
Q

What is the wavenumber for C double bond to O?

A

1700 cm(-1)

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6
Q

What is the wavenumber for the CH sp2 carbon bond?

A

CH-sp2: Around 3100

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7
Q

What is the wavenumber for C triple bond to C?

A

2100-2200

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8
Q

What is the wavenumber for C double bond to C?

A

1600-1700

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9
Q

What is the wavenumber for the N-H bond?

A

3200 or 3400

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10
Q

What is the wavenumber for the C triple bond to N bond?

A

2100-2200

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11
Q

What values make the proton NMR signals when cis, trans or germinal?

A

Cis: 6-12 Hz
Trans: 12-18 Hz
germinal: 0-3 Hz

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12
Q

What is the chemical shift/ppm for carboxylic acid?

A

12

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13
Q

What is the chemical shift/ppm of Aldehyde?

A

10-11

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14
Q

What is the chemical shift/ppm for Aromatic?

A

7-9

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15
Q

What is the chemical shift/ppm for Alkene?

A

5-7

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Organic Chemistry 2 (1 decks)

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