science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: 1,3-butadiyne Other Names: diacetylene Formula: C4H2 CAS-No.: 460-12-8 Study: spectroscopy Authors: J.L. Hardwick, D.A. Ramsay Title: The near ultraviolet and band system of diacetylene Journal/Source: Chem. Phys. Lett., 48, 399-401, (1977); doi:10.1016/0009-2614(77)85055-0 Data: Energy/Wavelength range: 265 - 297 nm Resolution: Temperature: Temperature dependence: Pressure/Concentration: Phase: pH: Comments: The 2650-2970 Å system of diacetylene has been reinvestigated with higher resolving power, and rotational fine structure found in some of the bands. Author to whom correspondence should be addressed: (e-mail address):