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preface to fifteenth edition

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SPECTROSCOPY 7.111<br />

TABLE 7.61<br />

Carbon-13 Spin Coupling Constants with Various Nuclei (Continued)<br />

Nuclei Structure 1<br />

J,Hz 2<br />

J,Hz 3<br />

J,Hz 4<br />

J,Hz<br />

7<br />

Li CH 3 Li 15<br />

11<br />

B (C 6 H 5 ) 4 B 49 3<br />

14<br />

N (CH 3 ) 4 N 10<br />

CH 3 NC 8<br />

29<br />

Si (CH 3 ) 4 Si 52<br />

31<br />

P (CH 3 ) 3 P 14<br />

(C 4 H 9 ) 3 P 11 12 5<br />

(C 6 H 5 ) 3 P 12 20 7 0<br />

(CH 3 ) 4 P 56<br />

(C 4 H 9 ) 4 P 48 4 15<br />

(C 6 H 5 ) 4 P 88 11 13 3<br />

R(RO) 2 P"O 142 5–7<br />

(C 4 H 9 O) 3 P"O 6 7<br />

77<br />

Se (CH 3 ) 2 Se 62<br />

(CH 3 ) 3 Se 50<br />

113<br />

Cd (CH 3 ) 2 Cd 513, 537<br />

119<br />

Sn (CH 3 ) 4 Sn 340<br />

(CH 3 ) 3 SnC 6 H 5 474 37 47 11<br />

125<br />

Te (CH 3 ) 2 Te 162<br />

199<br />

Hg (CH 3 ) 2 Hg 687<br />

(C 6 H 5 ) 2 Hg 1186 88 102 18<br />

207<br />

Pb(CH 3 ) 2 Pb250<br />

(C 6 H 5 ) 4 Pb481 68 81 20<br />

TABLE 7.62 Boron-11 Chemical Shifts<br />

Values given in ppm on the scale, relative <strong>to</strong> B(OCH 3 ) 3 .<br />

Structure , ppm Structure , ppm<br />

R 3 B<br />

67 <strong>to</strong> 68<br />

Ar 3 B<br />

43<br />

BF 3 24<br />

BCl 3<br />

12<br />

BBr 3<br />

6<br />

BI 3 41<br />

B(OH) 3 36<br />

B(OR) 3 0–1<br />

B(NR 2 ) 3<br />

13<br />

C 6 H 5 BCl 2<br />

36<br />

C 6 H 5 B(OH) 2<br />

14<br />

C 6 H 5 B(OR) 2<br />

10<br />

M(BH 4 ) 55–61<br />

B(BF 4 ) 19–20<br />

NH9BH<br />

HB<br />

NH<br />

12<br />

NH9BH<br />

H H<br />

H<br />

B B<br />

37<br />

H N<br />

R 2<br />

H<br />

H NR 2<br />

H<br />

B B<br />

15<br />

H NR 2<br />

H<br />

(CH 3 ) 2 N9B(CH 3 ) 2 62

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