172
M. Heshmat et al.
e)
f)
g)
Scheme 5.3 Several examples of experimentally investigated intramolecular (a–d) and intermolecular (e–g) FLPs that are able to activate H 2
Nonfluorinated cryptands are not kinetically suitable candidates for heterolytic H 2
splitting, with a calculated of activation of 32–39 kcal mol
−1 . In the case of
fluorinated ala-adamantane, the of activation of H 2 is 16–20 kcal mol
−1 and the
reaction is exergonic.
Wang and coworkers reported a DFT study on a series of N-centered groups
as Lewis basic site and P
V -centered groups as Lewis acid site for reversible H 2
activation. By inserting the active sites into 5- and 6-membered rings, the authors
designed a series of molecules able to catalyze hydrogenation (Scheme 5.5) [19].
M. Heshmat et al.
e)
f)
g)
Scheme 5.3 Several examples of experimentally investigated intramolecular (a–d) and intermolecular (e–g) FLPs that are able to activate H 2
Nonfluorinated cryptands are not kinetically suitable candidates for heterolytic H 2
splitting, with a calculated of activation of 32–39 kcal mol
−1 . In the case of
fluorinated ala-adamantane, the of activation of H 2 is 16–20 kcal mol
−1 and the
reaction is exergonic.
Wang and coworkers reported a DFT study on a series of N-centered groups
as Lewis basic site and P
V -centered groups as Lewis acid site for reversible H 2
activation. By inserting the active sites into 5- and 6-membered rings, the authors
designed a series of molecules able to catalyze hydrogenation (Scheme 5.5) [19].