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organic compounds
The title compound, C42H34O2, crystallizes in the space group R with one molecule disordered at a crystallographic site and another in a general position. The conformation of the linkage of the trityl groups to the central butyne group is such that the O—CC—O grouping forms a torsion angle of magnitude 87.2 (2)°. The CC distance length in the ordered molecule is 1.176 (3) Å.