IR wavenumbers

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12 Terms

1
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What is the absorption range for C-H in Alkanes?

2850-2960 cm-¹, Medium intensity.

2
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What is the absorption range for N-H in Amines?

3300-3500 cm¹, Medium intensity.

3
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What absorption range is associated with C=O in Carbonyl compounds?

1670-1780 cm¹, Strong intensity.

4
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What is the characteristic absorption range for C=C in Alkenes?

1640-1680 cm¹, Medium intensity.

5
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What absorption range do C-H bonds in Alkynes have?

3300 cm¹, Strong intensity.

6
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What is the absorption range for O-H in Carboxylic acids?

2500-3100 cm¹, Strong and broad.

7
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What functional group has an absorption range of 600-800 cm¹?

Alkyl halide (C-Cl).

8
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What is the intensity of the C=N bond in Nitriles?

Medium intensity.

9
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What absorption range characterizes the C-O bond in Alcohols?

1050-1150 cm¹, Strong intensity.

10
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What is the absorption range for the aromatic C-H in Arene?

3030 cm¹, Weak intensity.

11
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What functional group has a strong absorption at 1540 cm¹?

Nitro group (NO2).

12
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What absorption range corresponds to the C=C in Aromatic rings?

1660-2000 cm¹, Weak intensity.