Direct air capture of CO­2 – topological analysis of the experimental electron density (QTAIM) of the highly insoluble carbonate salt of a 2,6-pyridine-bis(iminoguanidine), (PyBIGH2)(CO3)(H2O)4

Gianopoulos, C.G.; Chua, Z.; Zhurov, V.V.; Seipp, C.A.; Wang, X.; Custelcean, R.; Pinkerton, A.A.

doi:10.1107/S2052252518014616

Figure 4
Potential hydrogen bonds between the anion–water ribbon and neighboring cations. All cations have been truncated to enhance the visibility of the hydrogen bonds. The figure is based on the neutron structure, with displacement ellipsoids drawn at the 20% proabability level and distances in Å (Macrae et al., 2008