铜(111)上四苯基反式二苯并卟啉的覆盖和温度诱导的自金属化。

IF 2.3 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER
Majid Shaker, Maximilian Muth, Julien Steffen, Alisson Ceccatto Dos Santos, Simon Jaekel, Rajan Adhikari, Pascal Gazetas, Christoph Oleszak, Abner de Siervo, Norbert Jux, Andreas Görling, Ole Lytken, Hans-Peter Steinrück
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引用次数: 0

摘要

我们利用扫描隧道显微镜、X 射线光电子能谱、温程解吸和密度泛函理论计算,研究了游离碱基四苯基反式二苯甲卟啉(2H-TPtdBP)在铜(111)上的吸附和自金属化与覆盖率和温度的函数关系。在低覆盖率 (
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coverage- and temperature-induced self-metalation of tetraphenyltransdibenzoporphyrin on Cu(111).

We have investigated the adsorption and self-metalation of free-base tetraphenyltransdibenzoporphyrin (2H-TPtdBP) on Cu(111) as a function of coverage and temperature using scanning tunneling microscopy, x-ray photoelectron spectroscopy, temperature programmed desorption, and density-functional theory calculations. At low coverages (<0.16 molecules nm-2), we observe isolated individual molecules with an inverted conformation and no self-metalation up to 363 K. At higher coverages, both the formation of ordered islands and self-metalation are observed over time already at room temperature, and accelerate upon heating to 363 K. At 423 K, complete self-metalation occurs for all coverages up to the completed first layer. By comparing our results for 2H-TPtdBP to the existing literature on other tetraphenyl-based porphyrins, we demonstrate how adsorption and self-metalation can be tailored by the choice of substituents.

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来源期刊
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter 物理-物理:凝聚态物理
CiteScore
5.30
自引率
7.40%
发文量
1288
审稿时长
2.1 months
期刊介绍: Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
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