Photoaquation of hexachloroplatinate(IV)

Primary photochemical processes for PtCl62− complex in acetonitrile solutions

“…The fitting program performed corrections of the group velocity dispersion and calculated the response time of the instrument. , which corresponds well with the value 23600 M À1 cm À1 reported for an aqueous solution [20]) charge transfer band with maximum at 270 nm (curve 1 in Fig. 1) corresponds to the transitions from p-orbitals of ligands to a metal center [43,44].…”

“…When the primary process (1) is realized, photoaquation can follow a chain mechanism. Depending on the experimental parameters, quantum yield could be both less [20,21,25] and sufficiently higher than unity [20,22,27].…”

“…In aqueous solutions, the integral photochemical process is photoaquation with the formation of the Pt IV Cl 5 (H 2 O) À complex as primary photoproduct [20][21][22][23][24][25][26][27]. Mechanism of photoaquation includes redox stages.…”

“…4a the value of A ex was not chosen small in order to observe the trend to saturation, therefore, the calculation of quantum yield using Eq. (20) was not perfect enough. To estimate the quantum yield, the experiments with the small concentration of the initial complex were performed (Fig.…”

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

“…The principal focus has been on the Pt IV Cl 6 2À complex. The main points investigated were the reaction intermediates [6][7][8][9][10][11][12], unusual aquation chain reactions [11,12] and the dramatic differences in the properties of the isoelectronic Pt IV Cl 6 2À and Pt IV Br 6 2À complexes [2,3].…”