Effect of localizing groups on quantum transport through single conjugated molecules

Quantum transport through single conjugated molecules sandwiched between two non-superconducting electrodes is studied by the use of Green's function technique. Based on the tight-binding model we do parametric calculations to characterize the electron transport through such molecular bridges. The electron transport properties are significantly influenced by (a) the existence of localizing groups in these conjugated molecules and (b) the molecule-to-electrodes coupling strength and here we focus our results in these two aspects.