Doyle, T.J.; L.N. Shen, C.M.L. Rittby, and W.R.M. Graham (November 1, 1991). “A C≡C stretching vibration of the C6H (hexatriynyl) radical in Ar at 10 K”. Journal of Chemical Physics95 (9): 6224–6228. Bibcode: 1991JChPh..95.6224D. doi:10.1063/1.461568.
Liu, R.; X. Zhou; P. Pulay (July 15, 1992). “Ab initio study of the geometry, stretching, vibrations, and assignment of the observed frequencies of the ground state C6H (hexatriynyl) radical”. Journal of Chemical Physics97 (2): 1602–1605. Bibcode: 1992JChPh..97.1602L. doi:10.1063/1.463236.
Doyle, T.J.; L.N. Shen, C.M.L. Rittby, and W.R.M. Graham (November 1, 1991). “A C≡C stretching vibration of the C6H (hexatriynyl) radical in Ar at 10 K”. Journal of Chemical Physics95 (9): 6224–6228. Bibcode: 1991JChPh..95.6224D. doi:10.1063/1.461568.
Liu, R.; X. Zhou; P. Pulay (July 15, 1992). “Ab initio study of the geometry, stretching, vibrations, and assignment of the observed frequencies of the ground state C6H (hexatriynyl) radical”. Journal of Chemical Physics97 (2): 1602–1605. Bibcode: 1992JChPh..97.1602L. doi:10.1063/1.463236.