science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: mercury(II) iodide				Other Names: mercury diiodide

Formula: HgI2						CAS-No.: 7774-29-0	PubChem: CID 24485

Study: uv absorption spectra, quantum yield


Authors: H. Hofmann, S.R. Leone

Title: Tunable laser photodissociation of HgI2: quantum yield for formation of excited I(52P1/2) atoms

Journal/Source: J. Chem. Phys., 69, 3819-3825, (1978); http://dx.doi.org/10.1063/1.437046


Data: table, diagram

Energy/Wavelength range: 200 - 350 nm

Resolution: 

Temperature: 453 K

Temperature dependence: no

Pressure/Concentration: 

Phase: vapor

pH:


Comments: The quantum yield of excited I(5 2P1/2) atoms has been measured in the first long wavelength absorption band of HgI2 from 
265 to 320 nm.
The absorption cross section at 270 nm is sigma = 1.5 x 10^-17 cm2/molecule. The quantum yield Phi(HgI2) = 1 at 270 nm was obtained.

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