A Complete Structural Study of the Coverage Dependence of the Bonding of Thiophene on Cu(111)

P.K.Milligan; B.Murphy; D.Lennon; B.C.C.Cowie; M.Kadodwala

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A Complete Structural Study of the Coverage Dependence of the Bonding of Thiophene on Cu(111)

机译：噻吩在Cu（111）上键合的覆盖依赖性的完整结构研究

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The influence of coverage on the structure and bonding of thiophene within chemisorbed overlayers on Cu(111) has been investigated. Normal incidnece X-ray standing wavefield absorption (NIXSW) and near-edge X-ray absorption fine structure spectroscopy (NEXAFS) were used to determine the adsorption site and orientation of thiophene. In the low coverage phase the thiophene molecle forms a #pi#-bonded species, adopting an atop adsorption site with a Cu-S separation of 2.62 (+-) 0.03 A with the ring inclined by 26 (+-) 5 deg. On increasing coverage, thiophene undergoes a compressional phase transformation to a more weakly bound sulfur lone-pair-bonded species. In this new phase the thiophene still occupies an atop site but the Cu-S separation has increased by 0.2 A and the ring is now inclined at 44 (+-) 6 deg to the surface.

机译：已经研究了覆盖度对化学吸附的覆盖层中的噻吩在Cu（111）上的结构和键合的影响。正常的入射X射线驻波场吸收（NIXSW）和近边缘X射线吸收精细结构光谱（NEXAFS）用于确定噻吩的吸附位置和方向。在低覆盖阶段，噻吩分子形成＃pi＃键结合的物质，采用顶部吸附位点，Cu-S间距为2.62（±）0.03 A，环倾斜26（±）5度。随着覆盖率的增加，噻吩经历压缩相转变为结合较弱的硫孤对键合物种。在这个新阶段，噻吩仍占据一个顶位，但是Cu-S的间隔增加了0.2 A，并且环现在相对于表面倾斜了44（±）6度。

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《The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical》 |2001年第1期|共9页
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P.K.Milligan; B.Murphy; D.Lennon; B.C.C.Cowie; M.Kadodwala;
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1. A Complete Structural Study of the Coverage Dependence of the Bonding of Thiophene on Cu(111) [J] . P.K.Milligan, B.Murphy, D.Lennon, The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2001,第1期

机译：噻吩在Cu（111）上键合的覆盖依赖性的完整结构研究
2. High resolution electron energy loss measurements of Na/Cu(111) id H2O/Na/Cu(111): Dependence of water reactivity as a function Na coverage [J] . A. Politano, R. G. Agostino, E. Colavita The Journal of Chemical Physics . 2007,第24期

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A Complete Structural Study of the Coverage Dependence of the Bonding of Thiophene on Cu(111)

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