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preface to fifteenth edition

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7.120 SECTION 7<br />

TABLE 7.73<br />

Phosphorus-31 Chemical Shifts (Continued)<br />

Structure<br />

Identical a<strong>to</strong>ms<br />

attached directly<br />

<strong>to</strong> phosphorus<br />

Non-identically substituted phosphorus<br />

R CH 3 R C 2 H 5 R C 6 H 5<br />

P(SR)Br 2<br />

204<br />

P(NR 2 ) 3 123 118<br />

P(NR 2 )Cl 2 166 162 151<br />

PR(NR 2 ) 2 86 100 100<br />

PR 2 (NR 2 ) 39 62<br />

F 2 P9PF 2<br />

226<br />

Cl 2 P9PCl 2<br />

155<br />

I 2 P9PI 2<br />

170<br />

PH 2 K 255<br />

P(CF 3 ) 3 3<br />

P 4 O 6<br />

113<br />

Structure<br />

Identical a<strong>to</strong>ms<br />

attached directly<br />

<strong>to</strong> phosphorus<br />

Non-identically substituted phosphorus<br />

X F X Cl X Br<br />

P(NCO) 3<br />

97<br />

P(NCO) 2 X 128 128 127<br />

P(NCO)X 2 131 166<br />

P(NCS) 3<br />

86<br />

P(NCS) 2 X 114 112<br />

P(NCS)X 2 155 153<br />

Structure<br />

Identical a<strong>to</strong>ms<br />

attached directly<br />

<strong>to</strong> phosphorus<br />

Non-identically substituted phosphorus<br />

R CH 3 R C 2 H 5 R C 6 H 5<br />

O"PR 3 36 48 25<br />

O"PHR 2 63 23<br />

O"PF 3 36<br />

O"PRF 2 27 29 11<br />

O"PCl 3<br />

2<br />

O"PRCl 2 45 53 34<br />

O"PR 2 Cl 65 77 43<br />

O"P(OR) 3 1 1 18<br />

O"P(OR) 2 Cl 6 3 6<br />

O"P(OR)Cl 2 6 6 2<br />

O"PH(OR) 2 19 15<br />

O"PR 2 (OC 2 H 5 ) 50 52 31<br />

O"PR(OC 2 H 5 ) 2 30 33 17<br />

O"P(NR 2 ) 3 23 24 2<br />

O"PR 2 (NR 2 ) 44 26<br />

O"P(OR) 2 NH 2 15 12 3<br />

O"P(OR) 2 (NCS) 19 29<br />

O"P(SR) 3 66 61 55<br />

O"PBr 3 103<br />

O"P(NCO) 3 41<br />

O"P(NCS) 3 62<br />

O"P(NH 2 ) 3<br />

22

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