Fig. 3: Oxidation of sterically crowded stibine 1a.
From: Isolation, bonding and reactivity of a monomeric stibine oxide
a, Oxidation of 1a with PhIO to give 2a. b, Model compounds featuring different Sb–O bonding motifs. A, A dimeric stibine oxide; B, a dihydroxystiborane; C, a hydroxystibonium salt with X = O3SPh. c, Sb K-edge XAS spectra, with a green dotted line indicating where the derivative is maximal for 2a. Full normalized Sb K-edge XAS spectra are provided in Supplementary Fig. 109. d, Sb K-edge EXAFS (left) and Sb–C phase-corrected Fourier transforms (right). Experimental data are shown in blue and fits in red. The relevant EXAFS parameters are provided in Supplementary Table 7. A breakdown of the contributions of the different scatterers to the EXAFS and Sb–C phase-corrected Fourier transforms of A and 2a are shown in Supplementary Figs. 110 and 111, respectively.
