TY - JOUR
T1 - Photochemical oxidation of [Ir((C3,N′-Hbpy)(bpy)2)]3+ by redox quenching
AU - Slama-Schwok, Anny
AU - Rabani, Joseph
PY - 1986
Y1 - 1986
N2 - Aqueous solutions containing [Ir((C3,N′-Hbpy)(bpy)2)]3+ were studied at room temperature by steady and pulsed laser techniques in the presence of electron acceptors. The acceptors used were S2O82- ions, methylviologen (as nitrate), [Co(NH3)5F]2+, and Fe3+ (as perchlorate). The first three produce [Ir((C3,N′-Hbpy)(bpy)2)]4+ while the last produces a complex. The quenching and product decay rate constants, as well as the observed spectra, are reported. The [Ir((C3,N′-Hbpy)(bpy)2)]4+ complex, reported here for the first time, is capable of oxidizing Cl- to Cl2-. In the absence of additives other than [Co(NH3)5F]2+ it is stable at pH <1.5 for at least 2 h. The site of oxidation, whether it is the Ir metal or a ligand, is not known.
AB - Aqueous solutions containing [Ir((C3,N′-Hbpy)(bpy)2)]3+ were studied at room temperature by steady and pulsed laser techniques in the presence of electron acceptors. The acceptors used were S2O82- ions, methylviologen (as nitrate), [Co(NH3)5F]2+, and Fe3+ (as perchlorate). The first three produce [Ir((C3,N′-Hbpy)(bpy)2)]4+ while the last produces a complex. The quenching and product decay rate constants, as well as the observed spectra, are reported. The [Ir((C3,N′-Hbpy)(bpy)2)]4+ complex, reported here for the first time, is capable of oxidizing Cl- to Cl2-. In the absence of additives other than [Co(NH3)5F]2+ it is stable at pH <1.5 for at least 2 h. The site of oxidation, whether it is the Ir metal or a ligand, is not known.
UR - http://www.scopus.com/inward/record.url?scp=0001640267&partnerID=8YFLogxK
U2 - 10.1021/j100278a042
DO - 10.1021/j100278a042
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AN - SCOPUS:0001640267
SN - 0022-3654
VL - 90
SP - 1176
EP - 1179
JO - Journal of Physical Chemistry
JF - Journal of Physical Chemistry
IS - 6
ER -