Figure 2
From: A monoclinic semiorganic molecular crystal GUHP for terahertz photonics and optoelectronics
Crystal structure of GUHP crystal. Black solid lines indicate covalent bonds. Pink dashed lines indicate hydrogen bonds. In the diagram, two segregate groups can be distinguished: the organic guanylurea group (accumulations of nitrogen, carbon and oxygen atoms) and the inorganic phosphate group (phosphorus and oxygen atoms).
