Crystallographic study of the energetic salt 1,2,4-triazolium perchlorate.

The molecular and crystal structure of 1H-1,2,4-triazolium perchlorate, CHN·ClO, was determined as detailed crystallographic data had not been available previously. The structure has monoclinic (P2/m) symmetry. It is of interest in the field of energetic compounds because nitrogen-rich azoles are the backbone of high-density energetic compounds, and salt-based energetic materials can exhibit preferential energy-release behaviour.

Crystal structure of benzyl 2-naphthyl ether, a sensitiser for thermal paper.

The title compound [systematic name: 2-(benz-yloxy)naphthalene], CHO, which is used as a sensitiser for thermal paper, has a twisted conformation with a dihedral angle of 48.71 (12)° between the phenyl ring and the naphthyl ring system. In the crystal, one mol-ecule inter-acts with six neighbouring mol-ecules inter-molecular C-H⋯π inter-actions to form a herringbone mol-ecular arrangement.