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Effect of Bond-Length Alternation in Molecular Wires

Author(s):

James G. Kushmerick, David B. Holt, Steven K. Pollack, Mark A. Ratner, John C. Yang, Terence L. Schull, Jawad Naciri, Martin H. Moore, Ranganathan Shashidhar

Journal:

Journal of the American Chemical Society

Year:

2002

Volume:

124

Pages

10654-10655

DOI:

10.1021/ja027090n

Abstract:

Current−voltage (I−V) characteristics for metal−molecule−metal junctions formed from three classes of molecules measured with a simple crossed-wire molecular electronics test-bed are reported. Junction conductance as a function of molecular structure is consistent with I−V characteristics calculated from extended Hückel theory coupled with a Green's function approach, and can be understood on the basis of bond-length alternation.