11  Electrochemical Properties of Electroactive Monolayers Having [Os(bpy)3]2+ Moieties.

Gyeong Sook Bang and Il Cheol Jeon , Bull. Korean Chem. Soc. 2001, Vol. 22, No. 1



Figure 1. Adsorption data for 0.1 mM [Os(bpy)2(bpy-C13SH)] (PF6)2 in methanol and the fitting curve using a set of appropriate kinetic parameters, that is, ka= 65 M-1 s-1, kd = 1.3 ´ 10-4 s-1, K = 2 ´ 10-6, and DGo = -7.8 kcal mol-1.

Figure 2. Cyclic voltammograms of a [Os(bpy)2(bpy-C13SH)]2+ SAM in (A) 0.1 M HClO4, and (B) 0.05 M H2SO4 recorded at 0.1 V s-1.

Figure 4. Electrochemical microgravimetric response obtained at a [Os(bpy)2(bpy-C13SH)]2+ SAM electrode. Scan Rate: 0.1 V s-1. Supporting electrolytes: (A) 0.1 M HClO4, and (B) 0.05 M H2SO4.

Figure 5. Simulated current curve matching the cyclic voltammogram  well. The peak current was taken from the CV and the formal potential, Ep  o, was taken from the frequency. For detailed explanation, see the text.