Self-capacitance of nanosized objects

A method to determine the effective self-capacitance of atomic and molecular objects is proposed. Experimental data and the results of quantum-mechanical computations are used to calculate the self-capacitance of atoms and various molecules. It is demonstrated that the self-capacitance is predominantly determined by the topology of the nanoobject rather than its chemical composition. The notion of the effective self-capacitance makes it possible to establish a relation of the chemical parameters of atoms and molecules and the electric parameters of molecular electronic devices.