science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: vinylidene radical Other Names: Formula: H2CC CAS-No.: 2143-69-3 Study: extinction coefficient Authors: A. Fahr, A.H. Laufer Title: Extinction coefficient of H2CC (3B2) at 137 nm Journal/Source: J. Chem. Phys., 83, 908-910, (1985); doi:10.1063/1.449509 Data: diagram Energy/Wavelength range: 137 nm Resolution: Temperature: Temperature dependence: Pressure/Concentration: Phase: gas pH: Comments: The extinction coefficient of H2CC (3B2) at 137 nm was determined to be 694 ± 218 atm-1 cm-1. Author to whom correspondence should be addressed: (e-mail address):