Diphenylbutadiyne
Diphenylbutadiyne is the hydrocarbon with the formula 2. It is a member of the diyne chemical class and can be made via the Glaser coupling of phenylacetylene However, a variety of other synthesis methods have been developed.
Diphenylbutadiyne forms a variety of metal-alkyne complexes. One example is the organonickel complex 4C42.