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Supramolecular engineering through temperature-induced chemical modification of 2h-tetraphenylporphyrin on Ag(111): Flat phenyl conformation and possible dehydrogenation reactions

机译:通过温度诱导的2H-四苯基卟啉对Ag(111)的化学改性的超分子工程(111):扁平苯基构象和可能的脱氢反应

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摘要

Scratching the surface: Formation of a monolayer of 2H- tetraphenylporphyrins (2H-TPP) on Ag(111), either by sublimation of a multilayer in the range 525-600 K or by annealing (at the same temperature) a monolayer deposited at room temperature, induces a chemical modification of the molecules (see figure). Rotation of the phenyl rings into a flat conformation is observed and tentatively explained, by using DFT calculations, as a peculiar reaction due to molecular dehydrogenation.
机译:刮擦表面:通过在525-600k k范围内或通过退火(在相同温度)在房间内沉积的单层(在相同温度)中形成2H-四苯基卟啉(2H-TPP)的单层(2H-TPP)(2H-TPP)。 温度,诱导分子的化学改性(见图)。 通过使用DFT计算,观察并暂时解释苯基环的旋转,以通过分子脱氢引起的特殊反应来观察和暂时解释。

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  • 来源
    《Chemistry: A European journal》 |2011年第51期|共6页
  • 作者单位

    INSTM-Micro and Nano-Carbon Laboratory Sincrotrone Trieste S.C.p.A. s.s.14 km. 163.5 34149 Trieste Italy;

    Empa Swiss Federal Laboratiories for Materials Science and Technology Nanotech Surfaces Laboratory Ueberlandstrasse 129 8600 Dübendorf Switzerland;

    INSTM-Micro and Nano-Carbon Laboratory Sincrotrone Trieste S.C.p.A. s.s.14 km. 163.5 34149 Trieste Italy;

    INSTM-Micro and Nano-Carbon Laboratory Sincrotrone Trieste S.C.p.A. s.s.14 km. 163.5 34149 Trieste Italy;

    Dipartimento di Matematica e Fisica Interdisciplinary Laboratories for Advanced Materials Physics Università Cattolica Del Sacro Cuore Brescia Italy;

    Dipartimento di Matematica e Fisica Interdisciplinary Laboratories for Advanced Materials Physics Università Cattolica Del Sacro Cuore Brescia Italy;

    Istituto Officina Dei Materiali-CNR Lab. TASC 34149 Trieste Italy;

    Istituto Officina Dei Materiali-CNR Lab. TASC 34149 Trieste Italy;

    Istituto Officina Dei Materiali-CNR Lab. TASC 34149 Trieste Italy;

    Istituto Officina Dei Materiali-CNR Lab. TASC 34149 Trieste Italy;

    Empa Swiss Federal Laboratiories for Materials Science and Technology Nanotech Surfaces Laboratory Ueberlandstrasse 129 8600 Dübendorf Switzerland;

    Empa Swiss Federal Laboratiories for Materials Science and Technology Nanotech Surfaces Laboratory Ueberlandstrasse 129 8600 Dübendorf Switzerland;

    Empa Swiss Federal Laboratiories for Materials Science and Technology Nanotech Surfaces Laboratory Ueberlandstrasse 129 8600 Dübendorf Switzerland;

    Empa Swiss Federal Laboratiories for Materials Science and Technology Nanotech Surfaces Laboratory Ueberlandstrasse 129 8600 Dübendorf Switzerland;

    INSTM-Micro and Nano-Carbon Laboratory Sincrotrone Trieste S.C.p.A. s.s.14 km. 163.5 34149 Trieste Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    C-C activation; density functional calculations; porphyrinoids; scanning probe microscopy; X-ray spectroscopy;

    机译:C-C激活;密度函数计算;卟啉曲线;扫描探针显微镜;X射线光谱;

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