Te?N secondary-bonding interactions in tellurium crystals: Supramolecular aggregation patterns and a comparison with their lighter congeners

• Te?N secondary-bonding features in supramolecular aggregates crystals. Zero-, one-, two- and three-dimensional architectures feature interactions. interactions are found 11% of crystals where they can potentially form. 1,3-Benzotellurazoles prone (80%) to form their One-dimensional chains tapes 50% examples. Supramolecular aggregation patterns featuring have been identified the tellurium(II) tellurium(IV) compounds through a survey Cambridge Structural Database; 77% examples involve centres. The presence has established approximately having molecules containing tellurium nitrogen atoms. Of 148 contacts survey, overwhelming majority be classified terms chalcogen-bonding invoking ?-hole bonding concept; there five ?-hole interactions, just over half occur within one-dimensional architectures, being or tapes, third with zero-dimensional 11 two-dimensional arrays one architecture. While most atom participated single interaction only, sizeable minority (24 %) featured forming two Certain classes exhibited very high propensities interactions: [1,3]tellurazolo[5,4- b ]pyridines (80 %), 2,1,3-benzotelluradiazoles (75 1,3-benzotellurazoles %). Compared association Se?N more likely form, relatively shorter distances tend higher-dimensional aggregates, all observations consistent greater polarizability pronounced ?-hole.