Syntheses of Three-Terminal Molecular Scale Wires

Syntheses of Three-Terminal Molecular Scale Wires 

Molecular Wires with Internal Methylene and Ethylene Transport 

Diiodobenzene was monolithiated and quenched with 4-bromobenzaldehyde to form intermediate 38 followed by reduction of the secondary alcohol to form 39 in high yield. Coupling to the more labile aryl iodide gave compound 40. Lithium-halogen exchange followed by quenching with sulfur and subsequent addition of acetyl chloride afforded the molecular scale wire 41 containing a methylene conduction barrier. 

A three-terminal system with one barrier could be reminiscent of a molecular-sized field effect transistor (FET) or switch in which there is a 

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