Photochemistry of the IrCl6 2− complex in aqueous solutions in the presence of the bromide anions

Abstract

Laser flash photolysis (308 nm) was applied to study photochemistry of the IrCl 6 2-complex in aqueous solutions in the presence of the Br -anions. The formation of the Br 2 •-radical anions in the reaction between the Br -ion and secondary radical pair formed after the photon absorp tion by the initial complex was observed. The Br 2•-radical anions decay both in recombination and in the reaction with the initial IrCl 6 2-complex.

Primary reactions in the photochemistry of hexahalide complexes of platinum group metals: A minireview

“…Recently, the primary processes in aqueous and methanolic Ir IV Cl 6 2À were examined under excitation at 320 nm into the LMCT and d-d bands [106]. This could result in either 2u u 0 !…”

Recovery of Iridium by Solvent Extraction and Direct Electrodeposition Using Phosphonium-Based Ionic Liquids

“…] complex is stable in aqueous solutions 22,23 and polar organic solvents 24,25 in the absence of free Cl − ions. The electronic absorption spectrum of [IrCl 6…”

Ultrafast pump-probe spectroscopy of IrCl62− complex in alcohol solutions

“…1) contains strong absorption bands both in the visible and UV regions. IrCl 6 2is a 5d 5 octahedral complex. The simple assignment of the absorption bands using non-relativistic symmetry (Fig.…”

“…The set of s-orbitals of six ligands in the crystal field form a 1g , e g and t 1u group orbitals, and the set of p-orbitals of ligands form t 1u , t 2u , t 1g and t 2g group orbitals. The t g -sub-shell of the complex has one hole, therefore d(t 2g ) 5 configuration of the ground state forms a single doublet term 2 T 2g , which corresponds to the ground state of IrCl 6 2-. According to ref.…”