AI Article Synopsis
- The study investigates the acid-base and electrochemical properties of three specific Ru(bpy)(3)(pypm)(2+) complexes in water, focusing on both their ground and excited states.
- Key findings include the electrochemical potentials and deprotonation rate constants for the excited states, as well as the kinetics of the reduced forms of these complexes.
- The results are compared to previous research on related Ru complexes, enhancing the understanding of their chemical behavior and interactions.
Article Abstract
The acid-base and electrochemical properties of the MLCT excited states and the one-electron-reduced forms of the three Ru(bpy)(3)(-)()(p)()(pypm)(p)()(2+) complexes, where bpy = 2,2'-bipyridine, pypm = 2-(2'-pyridyl)pyrimidine, and p = 1-3, have been examined in aqueous solution; a determination has been made of the ground- and excited-state electrochemical potentials, the values of the pK(a) and deprotonation rate constants of the conjugate acids of the excited states and the one-electron-reduced complexes, and the kinetics of the second-order decays of the reduced species. Comparison is made with the behavior of the analogous 10 complexes of the form Ru(bpy)(3)(-)()(m)()(-)()(z)()(bpm)(m)()(bpz)(z)()(2+), where bpm = 2,2'-bipyrimidine, bpz = 2,2'-bipyrazine, m and z = 0-3, and m + z
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| http://dx.doi.org/10.1021/ic960657e | DOI Listing |
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