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preface to fifteenth edition

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SPECTROSCOPY 7.97<br />

TABLE 7.46<br />

Pro<strong>to</strong>n Spin Coupling Constants<br />

Structure J, Hz Structure J, Hz<br />

H<br />

C<br />

H<br />

12–15<br />

CH9CH (free rotation) 6–8<br />

CH9OH (no exchange) 5<br />

CH9NH 4–8<br />

CH9SH 6–8<br />

H<br />

CH9C"O 1–3<br />

9N"C<br />

H t<br />

H c<br />

C"C<br />

H<br />

H<br />

H g<br />

H<br />

gem<br />

cis<br />

trans<br />

8–16<br />

0–3<br />

6–14<br />

11–18<br />

H c<br />

CH cis<br />

0.5–3<br />

C"C trans<br />

0.5–3<br />

H t<br />

H g<br />

gem<br />

4–10<br />

C"CH9CH"C 10–13<br />

"CH9C"O 6<br />

H<br />

9CH 2<br />

9C#C9CH 0–3<br />

CH9C#CH 0–3<br />

H H 3-member<br />

0–2<br />

C"C<br />

4-member<br />

2–4<br />

5-member<br />

5–7<br />

(ring) 6-member<br />

7-member<br />

6–9<br />

10–13<br />

4<br />

5<br />

O<br />

S<br />

H<br />

N<br />

O<br />

cis<br />

trans<br />

gem<br />

cis<br />

trans<br />

gem<br />

cis<br />

trans<br />

gem<br />

3<br />

2<br />

2–3<br />

3–4<br />

2–4<br />

2–5<br />

4–5<br />

3<br />

5–6<br />

0<br />

7<br />

6<br />

2<br />

6<br />

4<br />

1.8<br />

3.5<br />

0–1<br />

1–2<br />

4<br />

5<br />

S<br />

3<br />

2<br />

F<br />

H<br />

CH 3<br />

F<br />

2–3<br />

3–4<br />

2–4<br />

2–5<br />

o<br />

m<br />

p<br />

o<br />

m<br />

p<br />

H<br />

H<br />

H<br />

H<br />

Cyclopentane cis<br />

trans<br />

Cyclobutane cis<br />

trans<br />

Cyclopropane cis<br />

trans<br />

gem<br />

o<br />

H m<br />

H p<br />

5<br />

6<br />

4<br />

5<br />

C<br />

H t<br />

H c<br />

4<br />

N<br />

N<br />

H<br />

H<br />

F<br />

3<br />

2<br />

3<br />

2<br />

1<br />

CH9CF<br />

C"C<br />

2<br />

3<br />

2–3<br />

3–4<br />

2–4<br />

3–5<br />

2–5<br />

2–6<br />

1–2<br />

1–3<br />

2–3<br />

3–4<br />

2–4<br />

2–5<br />

1–2<br />

2–3<br />

gauche<br />

trans<br />

H g<br />

gem<br />

cis<br />

F trans<br />

a–a<br />

a–e<br />

e–e<br />

5–6<br />

3.5–5.0<br />

1.5<br />

3.4<br />

6–12<br />

4–8<br />

1.5–2.5<br />

2.5<br />

1.5<br />

0<br />

8–10<br />

2–3<br />

2–3<br />

4–6<br />

4–6<br />

8<br />

8<br />

9–11<br />

6–8<br />

4–6<br />

6–10<br />

1–3<br />

0–1<br />

8–9<br />

6<br />

5–6<br />

7–9<br />

1–2<br />

1–2<br />

0–1<br />

0–1<br />

2–3<br />

2–3<br />

2–3<br />

3–4<br />

1–2<br />

1–3<br />

45–52<br />

0–12<br />

10–45<br />

72–90<br />

3 <strong>to</strong>20<br />

12–40

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