A. Aloui et al. / Journal of Molecular Catalysis A: Chemical 363–364 (2012) 214–222
221
1
0
8
6
4
2
0
1
0
8
6
4
2
0
IIR
IIS
IIR
IIS
(a)
(b)
0
20
40
60
80
100
0
20
40
60
80
100
Hydrogen pressure (bar)
Hydrogen pressure (bar)
Fig. 8. Diastereomeric concentration vs hydrogen pressure ([M-acrylate] = 0.1 kmol m−3, [Rh] = 10 kmol m
−4
−3
)
(a) k1R = 1.9 × 10 m3 kmol min
5
−1
−1
,
(b)
5
3
−1
−1
k1R = 0.7 × 10
m
kmol min .
the hydrogen pressure, i.e. going from the major/minor descrip-
tion to the lock-and-key. The obtained results for M-acrylate
can contribute to this discussion. In fact, considering the range
of respective confidence interval, the value impact of each rate
constant on the concentration of both diastereomers has been
studied. Asymptotic profiles without crossing for the diastere-
omeric concentration, i.e. with the lock-and-key concept operating,
were obtained except for some values of k . Within the confi-
Appendix A. Supplementary data
Supplementary data associated with this article can be
found, in the online version, at http://dx.doi.org/10.1016/j.
molcata.2012.06.012.
References
1R
5
5
5
−3
,
dence interval [0.7 × 10 ; 1.9 × 10 ], for k > 1.1 × 10 kmol m
1R
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−3
whereas values of k1R ≤ 1.1 × 10 kmol m results in the presence
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(
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. Conclusion
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The authors are grateful the Centre National de la Recherche
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