01372nas a2200169 4500008004100000022001400041245014300055210006900198260011000267300001400377490000700391520061500398100002101013700001701034700002401051856012701075 2013 eng d a1144-054600aInterfacial charge recombination of Os(II)-polypyridyl-resorcinol complex on oleic acid capped TiO2 surface: what determines the dynamics?0 aInterfacial charge recombination of OsIIpolypyridylresorcinol co aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUL a3100-31080 v373 a
Femtosecond transient absorption spectroscopic studies of an osmium(II)-polypyridyl-resorcinol complex, 1, on oleic acid capped TiO2 have been carried out and the results have been compared with our previous studies on poly(vinyl) alcohol capped TiO2. While on both these surfaces the complex exhibits a single exponential <120 fs injection, the back electron transfer reaction is slower on the oleic acid capped TiO2 surface early on while it is faster on the same surface at longer times than on poly(vinyl)alcohol capped TiO2. The probable origin of these disparate observations has been analyzed.
1 aBanerjee, Tanmay1 aDas, Amitava1 aGhosh, Hirendra, N. uhttp://library.ncl.res.in/content/interfacial-charge-recombination-osii-polypyridyl-resorcinol-complex-oleic-acid-capped-0