Synthesis, structural studies and Hirshfeld surface analysis of 2-[(4-phenyl-1-1,2,3-triazol-1-yl)methyl]pyridin-1-ium hexa-kis-(nitrato-κ ,')thorate(IV).

Reaction of thorium(IV) nitrate with 2-[(4-phenyl-1-1,2,3-triazol-1-yl)meth-yl]pyridine () yielded (H)[Th(NO)] or (CHN)[Th(NO)] (), instead of the expected mixed-ligand complex [Th(NO) ], which was detected in the mass spectrum of . In the structure, the [Th(NO)] anions display an icosa-hedral coordination geometry and are connected by H cations through C-H⋯O hydrogen bonds. The H cations inter-act N-H⋯N hydrogen bonds. Hirshfeld surface analysis indicates that the most important inter-actions are O⋯H/H⋯O hydrogen-bonding inter-actions, which represent a 55.2% contribution.