"diarylacetylenes" . . "Tolane" . . . . "\u2013\u2261\u2013Ph" . . . "diphenylacetylene" . . "Diphenylacetylene" . "Tolan" . . "C₂Ph₂" . . "Diphenylacetylene" . . "2-Phenylethynylbenzene" . "Diphenylacetylene" . "1,1\u2032-Ethynediyldibenzene" . . "1,2-Diphenylethyne" . . . .