Figure 8
The thermal conductance of the Au-anthracene-Au junction as a function of temperature for the thiol-terminated junction in the presence of amine (blue), nitro (magenta) or methyl (green) as the side group in (a) \(\mathrm{R}^{\prime }\) and (b) \(\mathrm{R}\) positions. The electrical conductance of the isocyanide-terminated junction with amine (blue), nitro (magenta) or methyl (green) side group in (c) \(\mathrm{R}^{\prime }\) and (d) \(\mathrm{R}\) positions. Also, the thermal conductance of the unperturbed (U.P.; red) system in the absence of side groups is drawn as a reference. (e) Examplar representation of the Fermi derivative peak (\(-df/d\varepsilon\) in the left axis; \(T = 60,200,300 \, \mathrm{K}\)) and transmission coefficient peak (\(T(\varepsilon )\) in the right axis; blue dotted curve) for the molecule anchored with the isocyanide anchoring group with nitro side group in the \(\mathrm{R}^{\prime }\) position. (f) \((\varepsilon -\mu )^2 T(\varepsilon )(-df/d\varepsilon )\) is drawn for the isocyanide-terminated junction with nitro side group in the \(\mathrm{R}^{\prime }\) position.
