B50
Hydroquinone
Ghandi,K.,Addison-Jones,B.,Brodovitch,J-C.,McKenzie,I.,
Percival,P.W. and Schueth,J,
Phys.Chem.Chem.Phys,2002, 4, 586.
Reaction : 1,4-C6H4(OH)2
+ Mu ® 1,4-C6H4Mu(OH)2
Type of reaction :addition to
benzene ring
kM values at
different temperatures and pressures are shown in the table
|
T/°C |
P/bar |
kMu/1010 dm3 mol-1 s-1 |
| 35 |
230 |
1.36(19) |
| 95 |
240 |
3.06(39) |
|
147 |
242 |
3.14(50) |
|
210 |
240 |
3.14(48) |
|
252 |
231 |
3.02(54) |
|
310 |
255 |
2.26(35) |
|
315 |
235 |
2.21(36) |
|
341 |
225 |
0.69(21) |
| 60 |
3 |
1.58(19) |
|
257 |
58 |
3.20(29) |
|
257 |
110 |
3.30(30) |
|
257 |
225 |
3.64(33) |
|
257 |
250 |
3.53(29) |
|
257 |
275 |
3.24(39) |
|
257 |
275 |
3.05(37) |
|
257 |
360 |
3.83(34) |
|
257 |
372 |
3.46(32) |
|
331 |
230 |
2.23(19) |
|
331 |
380 |
3.04(24) |
|
362 |
230 |
0.85(6) |
|
362 |
320 |
2.15(13) |
|
362 |
372 |
1.92(20) |
| 35 |
1 |
1.40(18) |
|
289 |
129 |
1.39(13) |
| 25 |
1 |
1.01(13) |
| 45 |
1 |
1.67(20) |
| 65 |
1 |
1.88(41) |
| 5 |
1 |
0.76(7) |
| 25 |
1 |
1.10(8) |
KIE= kM/kH
= 1.1 x 109/1.3 x 109 = 8.5 at T=298K
kH= 1.3 x 109
dm3mol-1s-1 from: www.rcdc.nd/compilation/Hatom/HTM
Activation volumes DV≠
calculated from the rate
constants at various temperatures.
T[ K ]
DV≠
[ cm3mol-1]
530
-5+/-10
604
-70+/-20
635
-260+/-100
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