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Length-dependent conductance of oligothiophenes.
It is postulate that different conformers in the junction are a contributing factor to the anomalous trend in the observed conductance as a function of molecule length. Expand
Single-molecule diodes with high rectification ratios through environmental control.
This method reliably and reproducibly achieve rectification ratios in excess of 200 at voltages as low as 370 mV using a symmetric oligomer of thiophene-1,1-dioxide and provides a general route for tuning nonlinear nanoscale device phenomena. Expand
Molecular length dictates the nature of charge carriers in single-molecule junctions of oxidized oligothiophenes.
It is demonstrated that charge carriers in single-molecule junctions can be tuned within a family of molecules that contain electron-deficient thiophene-1,1-dioxide (TDO) building blocks, resulting in a unique system in which the charge carrier depends on the backbone length, and provides a new means to tune p- and n-type transport in organic materials. Expand
Impact of molecular symmetry on single-molecule conductance.
This work demonstrates that the conductance of bithiophene displays a strong dependence on the conformational fluctuations accessible within a given junction configuration, and that the symmetry of such small molecules can significantly influence their conductance behaviors. Expand
The preparation of thiophene-S,S-dioxides and their role in organic electronics
In the last decade, Rozen's reagent (HOF·CH3CN) has been shown to be powerful yet selective enough to oxidize thiophene moieties in various environments. The resulting thiophene-S,S-dioxides displayExpand
Bandgap engineering through controlled oxidation of polythiophenes.
This approach demonstrates that modulating the backbone electronic structure of well-defined polymers, rather than varying the monomers, is an efficient means of tuning the electronic properties of conjugated polymers. Expand
Polymeric supramolecular assemblies based on multivalent ionic interactions for biomedical applications
Abstract Oppositely charged polyelectrolytes can be used to form various types of self-assembled structures directed by multivalent ionic interactions. The supramolecular architectures that resultExpand
Identification of complex molecules at surfaces: G-SIMS and SMILES fragmentation pathways
Abstract In this study, we develop a simple method using the SMILES molecular structure format to simulate fragmentation pathways in secondary ion mass spectrometry (SIMS). These pathways are foundExpand
Protein surface interactions probed by magnetic field effects on chemical reactions.
The experimental data in connection with the simulated curves unequivocally show that the radical pair has a lifetime of the order of microseconds in both systems (HEWL and BSA), however, the radical couple is embedded within a binding pocket of the BSA protein, while the (otherwise identical) radical pair resides on the protein surface in the HEWL system. Expand
Molecular electronics under the microscope.
Three Articles in this issue highlight how chemists can now better understand and control electronic properties at the molecular level. Expand