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NMR, IR & pKa

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nicolai's version from 2015-07-28 06:47

Section 1 - H-NMR, Multiplisitet

Question Answer
What multiplet will a (set of) H-atom(s) with 0 adjacent hydrogens have?Singlet [s]
What multiplet will a (set of) H-atom(s) with 1 adjacent hydrogens have?Doublet [d]
What multiplet will a (set of) H-atom(s) with 2 adjacent hydrogens have?Triplet [t]
What multiplet will a (set of) H-atom(s) with 3 adjacent hydrogens have?Quartet [q]
What multiplet will a (set of) H-atom(s) with 4 adjacent hydrogens have?Pentet
What multiplet will a (set of) H-atom(s) with 5 adjacent hydrogens have?Sextet
What multiplet will a (set of) H-atom(s) with 6 adjacent hydrogens have?Septet
What multiplet will a (set of) H-atom(s) with 7 adjacent hydrogens have?Octet
What multiplet will a (set of) H-atom(s) with 8 adjacent hydrogens have?Nonet
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Section 2 H-NMR - Multiplisitet

Question Answer
Singlet
Doublet
Triplet
Quartet
Pentet
Sextet
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Section 1.1 H-NMR Interval

Question Answer
Alifatisk proton [H-C-C]0.0-1.5 ppm
Allylisk [H-C-C=C]1,5-2.5 ppm
Hetro-Atom [H-C-X, X=O, N or. Hal]2.5-4.5 ppm
Vinylsk [H-C=C]4.5-6.5 ppm
Aromatisk [H-Ar]6.5-8.0 ppm
Aldehyd [H-C=O]9.5-10 ppm
Carboxyl syre [RCOO-H]11.0-12.0 ppm
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Section 1.2 IR Interval

Question Answer
N-H, O-H3600-3300
C-HLige under 3000
Nitril og Alkyn2500-2000
C=O, C=N, C=O2000-1500
Carbonyl C=O1750-1680
Alken C=C1680-1640
Finger aftryk, C-C, C-O, C-N, C-X1500-400
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Section 1 pKa

Question Answer
Alkane ca. 50
Alkeneca. 43
Hydrogen-ion42
Amineca. 35
Sulfoxide31
Alkyne25
Ester25
Nitrile25
Keton / Aldehyd20-24
Alcohol 17
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Section 2 pKa

Question Answer
H2O16
1,3-dicarbonyl compounds (Malonates)13
Thiols13
Protonated Amines9-11
Carboxylic acids4
HFca. 3
Sulfonic acid (sulfon syre)-1
Hydronium ion (H3O+)ca. -2
Sulfuric acid (H2SO4)-3
HCl-6
HBr-9
HI-10
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