1-Butyl-1-chloro-3-methyl-3-2,1λ-benzoxa-tellurole: crystal structure and Hirshfeld analysis.

Two independent mol-ecules comprise the asymmetric unit in the title benzoxatellurole compound, CHClOTe. The mol-ecules, with the same chirality at the methine C atom, are connected into a loosely associated dimer by Te⋯O inter-actions, leading to a {⋯Te-O} core. The resultant CClO donor set approximates a square pyramid with the lone pair of electrons projected to occupy a position to the -butyl substituent. Inter-estingly, the Te atoms exhibit opposite chirality. The major difference between the independent mol-ecules relates to the conformation of the five-membered chelate rings, which is an envelope with the O atom being the flap, in one mol-ecule and is twisted about the O-C(methine) bond in the other. No directional inter-molecular inter-actions are noted in the mol-ecular packing beyond the aforementioned Te⋯O secondary bonding. The analysis of the Hirshfeld surface reveals the dominance of H⋯H contacts, . contributing about 70% to the overall surface, and clearly differentiates the immediate crystalline environments of the two independent mol-ecules in terms of both H⋯H and H⋯Cl/Cl⋯H contacts.