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. Author manuscript; available in PMC: 2017 Nov 4.
Published in final edited form as: Chemphyschem. 2016 Sep 5;17(21):3395–3398. doi: 10.1002/cphc.201600564

Figure 1.

Figure 1

(a) Scheme of p-H2 pairwise addition to propene. (b) ALTADENA[19] 1H NMR spectrum acquired after PHIP of propene with p-H2 with separate loading of reactants into the catalyst solution in CD3OD (duration of p-H2 bubbling is 8 s) corresponding to the batch-mode condition (corresponding PASADENA spectrum obtained using 50% p-H2 is provided in Figure S4). (c) 1H NMR spectrum of thermally-polarized solution with loaded propene before p-H2 bubbling. (d) 1H NMR spectrum of fully relaxed (i.e. thermally-polarized condition) reaction mixture obtained after the experiment (b). Note that spectra (c) and (d) are scaled by a factor of 64. SE = 1910 for CH2 group of propane, corresponding to %PH = 6.2 % (80% p-H2). Resonances labeled * correspond to the initial [Rh(NBD)(dppb)]BF4 complex and its reduced form. Note the additional HP resonances labeled with ° correspond to HP norbornene and norbornane due to PHIP process of these catalyst-derived compounds.[20]