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Figure 6
Exactly superimposed independent SeC(NH2)2 molecules and their NH⋯Se bonded neighbours in phases (a) α at 0.1 MPa and (b) β at 0.21 GPa. The Se⋯H bonds are marked by dotted lines. The colours mark patterns hydrogen bonded to central molecules labelled: 1 (pink), 2 (light green), 3 (deep green), 4 (grey), 5 (blue), 6 (purple), 7 (violet), 8 (orange) and 9 (dark yellow). (c) Exactly superimposed urea OC(NH2)2 molecules and their NH⋯O bonded neighbours in phases I (pink), III (light green) and IV (deep green, c.f. Fig. S6–S8).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 77| Part 3| June 2021| Pages 449-455
https://doi.org/10.1107/S205252062100398X
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