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preface to fifteenth edition

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SPECTROSCOPY 7.93<br />

TABLE 7.42<br />

Pro<strong>to</strong>n Chemical Shifts (Continued)<br />

Substituent group Methyl pro<strong>to</strong>ns Methylene pro<strong>to</strong>ns Methine pro<strong>to</strong>n<br />

HC9NH(C"O)R 2.95 3.35 3.85<br />

HC9SO 3 R 2.95<br />

HC9Cl 3.05 3.45 4.05<br />

HC9OH and HC9OR 3.20 3.40 3.60<br />

HC9PAr 3 3.20 3.40<br />

HC9NH 2 3.50 3.75 4.05<br />

HC9O(C"O)R 3.65 4.10 4.95<br />

HC9OAr 3.80 4.00 4.60<br />

HC9O(C"O)Ar 3.80 4.20 5.05<br />

HC9O(C"O)CF 1 3.95 4.30<br />

HC9F 4.25 4.50 4.80<br />

HC9NO 2 4.30 4.35 4.60<br />

Cyclopropane 0.20 0.40<br />

Cyclobutane 2.45<br />

Cyclopentane 1.65<br />

Cyclohexane 1.50 1.80<br />

Cycloheptane 1.25<br />

Substituent group<br />

Pro<strong>to</strong>n<br />

shift<br />

Substituent group<br />

Pro<strong>to</strong>n<br />

shift<br />

HC#CH 2.35 HO9C"O 10–12<br />

HC#CAr 2.90 HO9SO 2 11–12<br />

HC#C9C"C 2.75 HO9Ar 4.5–6.5<br />

HAr 7.20 HO9R 0.5–4.5<br />

HCO9O 8.1 HS9Ar 2.8–3.6<br />

HCO9R 9.4–10.0 HS9R 1–2<br />

HCO9Ar 9.7–10.5 HN9Ar 3–6<br />

HO9N"C (oxime) 9–12 HN9R 0.5–5<br />

Saturated heterocyclic ring systems

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