Synthesis of 1,2-biphenylethane based single-molecule diodes
E. Galán
M.L. Perrin
M. Lutz
H.S.J. van der Zant
F.C. Grozema
R. Eelkema
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Abstract
We have described the synthesis of novel biphenylethane-based wires for molecular electronics. Exceptional single-molecule diode behavior was predicted for unsymmetrically substituted biphenylethane derivatives, synthesized here using the so far unexplored unsymmetrically substituted 1,2-bis(4-bromophenyl)ethanes as key intermediates, which were obtained from the corresponding tolane precursor by selective hydrogenation.