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Figure 6
Photodifference map showing light-induced structural changes at 160 K for the QTNiNO2 crystal (for clarity only the nitro form of the light-OFF structure is shown; large arrows indicate peaks related to approximate positions of the metastable-state form atoms: upper arrow – oxygen atom of the endo-nitrito form, middle – nitro­gen atom, bottom – terminal oxygen atom of the exo-nitrito form; blue solid lines – positive values, red dashed lines – negative, contours at ±0.13 e·Å−3).

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