science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2019 Substance: oxalyl chloride Other names: ethanedioyl dichloride Formula: C2Cl2O2 CAS-No.: 79-37-8 Study: uv absorption cross sections, photolysis, quantum yields Authors: B. Ghosh, D.K. Papanastasiou, J.B. Burkholder Title: Oxalyl chloride, ClC(O)C(O)Cl: UV/vis spectrum and Cl atom photolysis quantum yields at 193, 248, and 351 nm Journal/Source: J. Chem. Phys., 137, 164315, (2012); http://dx.doi.org/10.1063/1.4755769 Data: table, diagram Energy/Wavelength range: 200 - 450 nm Resolution: ~ 0.5 nm Temperature: 296 K Temperature dependence: no Pressure/Concentration: Phase: gas pH: Comments: the UV/vis absorption spectrum of (ClCO)2 and the Cl atom quantum yields in its photolysis at 193, 248, and 351 nm are reported. The UV/vis spectrum was measured between 200 and 450 nm at 296 K using diode array spectroscopy in conjunction with an absolute cross section obtained at 213.9 nm. An absolute 213.9 nm cross section of 1.72 × 10-18 cm2 molecule-1 has been determined. Phi(193 nm) was found to be 2.07 ± 0.37 independent of bath gas pressure (25.8–105.7 Torr, N2). Author to whom correspondence should be addressed: (e-mail address):