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C=C Alchini (Acetileni)

C=C Alchini (Acetileni)

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Principali bande di frequenza<br />

O−H 3600 cm -1 (Acidi – molto ampia, Alcoli - ampia)<br />

N−H 3300 - 3500 cm -1 (2, 1, 0 picchi – ammina 1°, 2°, 3°)<br />

C≡N 2250 cm -1 (Nitrile)<br />

C≡C 2150 cm -1 (Acetilene)<br />

C=O 1685 - 1725 cm -1 (1715) (Carbonile)<br />

<strong>C=C</strong> 1650 cm -1 (Alchene); 4 absorptions 1450-1600 (aromatico)<br />

CH 2 1450 cm -1 (Gruppo Metilene)<br />

CH 3 1375 cm -1 (Gruppo Metile)<br />

C−O 900 - 1100 cm -1 (Alcoli, Acidi, Esteri, Eteri, Anidridi)<br />

-C−H (Assorbimenti degli Alcani saturi: < 3000 cm -1 )<br />

=C-H (Assorbimenti degli Alcheni: > 3000 cm -1 )<br />

=C-H (Assorbimenti degli Aromatici: > 3000 cm -1 ) – Verificare a<br />

1667 – 2000 cm -1<br />

≡C-H (Assorbimenti degli <strong>Alchini</strong>: > 3000 cm -1 )

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