Hirshfeld surface analysis of the 1,1′-(ethane-1,2-diyl)dipyridinium dication in two new salts: perchlorate and peroxo­di­sulfate

Similar Hirshfeld surface shapes of the 1,1′-(ethane-1,2-diyl)dipyridinium dication are observed in its perchlorate and peroxo­di­sulfate salts. The asymmetric two-dimensional fingerprint plots and the preponderance of H...O inter­actions in the crystal structures are discussed.

Three new phospho­ric tri­amides with a [C(O)NH]P(O)[N(C)(C)]₂ skeleton: a database analysis of C-N-C and P-N-C bond angles

The crystal structures of three new phospho­ric tri­amides with a [C(O)NH]P(O)[N(C)(C)]₂ skeleton are discussed. The C-N-C and P-N-C bond angles in these structures and analogous structures deposited in the Cambridge Structural Database are analysed.