File Name : suppl fig 1.tif

Caption : supplementary figure 1. tg, dta and dtg curves for (nh4)2[oscl6] (10 k/min, 2 vol.% h2/n2).

File Name : suppl fig 2a.tif

Caption : supplementary figure 2. difference in (a) the post-edge peak a area between one measured at temperature and that of (nh4)2[oscl6], (b) energy of the first order derivatives of the post-edge peak a depending on temperature.

File Name : suppl fig 2b.tif

Caption : supplementary figure 2. difference in (a) the post-edge peak a area between one measured at temperature and that of (nh4)2[oscl6], (b) energy of the first order derivatives of the post-edge peak a depending on temperature.

File Name : suppl fig 3.tif

Caption : supplementary figure 3. quality of the fitting of exafs for the intermediate compound selected by mcr-als.