"9,10-bis(phenylethynyl)anthracene" . "9,10-Bis(2-phenylethynyl)anthracene, BPEA" . "9,10-Bis(phenylethynyl)anthracene" . . . . "9,10-Bis(phenylethynyl)anthracene" . . . "9,10-Bis(phenylethynyl)anthracene" . . . . . . . . . .