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Figure 4
Populations of all states versus temperature (including irradiated crystal structures): the crystal was first temperature-scanned from 100 to 240 K, cooled down to 160 K and irradiated, and then the temperature was increased again. Green solid lines – nitro isomer, red – endo-nitrito form, blue – exo-nitrito form; circles denote the first temperature scan, stars denote the second scan (after irradiation); numbers in the circles denote important stages of the experiment; error bars are smaller than the symbols. For numerical data see the supporting information.

IUCrJ
Volume 7| Part 6| November 2020| Pages 1188-1198
ISSN: 2052-2525
https://doi.org/10.1107/S205225252001307X