view article
Figure 4
Pressure dependence of the N⋯N distances (bottom) and N⋯N⋯C angles (top) between stacked BIPY molecules/ions. Data for the C2/c and P21/c phases are shown with circles/squares and diamond/triangles, respectively. Full symbols in the C2/c phase are for the compression series, and open for the decompression series. In the P21/c phase, full symbols mark the data for the pyrimidine ring of BIPY with the N1 atom (shown in red and green), and open for the ring with the N2 atom (blue and pink). The way distances and angles were measured is presented in the figure inserted into the graph (for clarity, shown for the P21/c phase only). Symmetry codes: (i) 1/2 − x, 1/2 − y, 1 − z; (ii) 1 − x, −y, 1 − z; (iii) 1 − x, 1 − y, 1 − z.

IUCrJ
Volume 11| Part 2| March 2024| Pages 168-181
ISSN: 2052-2525
https://doi.org/10.1107/S2052252524000344