Vipin Mishra, Prithwidip Saha, Thiruvancheril G.The Journal of Physical Chemistry C 2021, 125 Growth of Corrole Films from Solution: A Nanometer-Scale Study at the Real Solid–Liquid Interface. The Journal of Physical Chemistry C 2022, 126 Scanning Tunneling Microscopy Reveals Surface Diffusion of Single Double-Decker Phthalocyanine Molecules at the Solution/Solid Interface. Johnson, Kirill Gurdumov, Ursula Mazur, K. Self-Assembly Dynamics and Stability through Concentration Control at the Solution/HOPG Interface. Influences on the Dynamics and Stability of Self-Assembly: Solvent, Substrate, and Concentration. This article is cited by 25 publications. The surface structures of both the NiOEP and CoOEP on HOPG and Au(111) are very similar and can be described by A = 1.30 ± 0.04 nm, B = 1.40 ± 0.04 nm, and α = 57° ± 2° with an area of 1.50 ± 0.08 nm 2/molecule. The rates of adsorption (for concentrations near 100 μM) are found to be within 20% of each other. For this fast adsorption process, where a full monolayer coverage occurs, the surface coverage of MOEP on both surfaces was determined by the relative concentration of each species in the phenyloctane solution. On the other hand, for solution concentrations of the order of 100 μM, a dense monolayer is formed within seconds. The calculated desorption rate on HOPG in this work is 0.22 min –1, making the rate of desorption of CoOEP from HOPG 2 orders of magnitude greater than from Au(111). A previous study performed on Au(111) reported that the rate of desorption of CoOEP is 0.004 min –1 at 135 ☌. NiOEP desorption occurs at a slower rate and is homogeneous across HOPG terraces, unlike the inhomogeneous desorption observed on Au(111). The desorption energy of CoOEP from HOPG into phenyloctane is determined to be 1.05 × 10 2 ± 0.03 × 10 2 kJ/mol. From these temperature- and time-dependent measurements, assuming an Arrhenius rate law, the activation energy of molecular desorption at the SS interface was determined using studies solely based on STM. Significant desorption of CoOEP from the HOPG surface was observed above 80 ☌ on a time scale of hours. At lower temperatures, monolayer formation of metal(II) octaethylporphyrin (MOEP) on HOPG from solution was found to be completely controlled by kinetics, and the adlayer formed was stable up to 70 ☌. Scanning tunneling microscopy (STM) was used to measure molecular-scale temperature-dependent desorption of cobalt(II) octaethylporphyrin (CoOEP) at the phenyloctane solution–highly ordered pyrolytic graphite (HOPG) interface. Temperature-dependent desorption rates and desorption energies are determined from a monolayer assembly at the solution–solid (SS) interface.
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