作者:Aiko Fukazawa、Manabu Kiguchi、Satoshi Tange、Yasunori Ichihashi、Qiang Zhao、Takuya Takahashi、Tatsuya Konishi、Kei Murakoshi、Yuta Tsuji、Aleksandar Staykov、Kazunari Yoshizawa、Shigehiro Yamaguchi
DOI:10.1246/cl.2011.174
日期:2011.2.5
Phenylene and biphenyl compounds with dibenzophosphole sulfide (DBPS) as an anchoring group for single molecule junctions were synthesized. The conductance measurements revealed that the phosphine sulfide indeed acts as an anchoring group for Au electrodes. Theoretical calculations including metal electrodes demonstrated that the LUMO level of the DBPS-terminated biphenyl is close to the Au Fermi level, leading to the electron conduction of the Au–molecule–Au junction based on the resonance-tunneling mechanism.
合成了以二苯并磷硫醚(DBPS)作为单分子连接锚定基团的亚苯基和联苯化合物。电导测量表明,硫化膦确实充当金电极的锚定基团。包括金属电极在内的理论计算表明,DBPS封端联苯的LUMO能级接近Au费米能级,导致基于共振隧道机制的Au-分子-Au结的电子传导。