science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: diphosphorus tetraiodide Other Names: tetraiododiphosphane Formula: P2I4 CAS-No.: 13455-00-0 Study: photolysis, extinction coefficients, quantum yields Authors: T. Kennedy, R.S. Sinclair Title: The U.V. spectrum and photolysis of P2I4 and PI3 Journal/Source: J. Inorg. Nucl. Chem., 32, 1125-1133, (1970); http://dx.doi.org/10.1016/0022-1902(70)80106-3 Data: table Energy/Wavelength range: 223 nm; 287 nm; 374 nm Resolution: Temperature: Temperature dependence: Pressure/Concentration: Phase: solution (cyclohexane) pH: Comments: The u.v. spectrum and photolysis of PI3 and P2I4 in hexane and cyclohexane have been investigated and the stoichiometry of the photolysis reaction obtained. A reaction mechanism for the breakdown is proposed and the quantum yield and kinetic behaviour of the solutions explained. The maxima of the UV spectrum are listed. Author to whom correspondence should be addressed: (e-mail address):