Supramolecular Engineering through Temperature-Induced Chemical Modification of 2H-Tetraphenylporphyrin on Ag(111): Flat Phenyl Conformation and Possible Dehydrogenation Reactions

被引：59

作者：

Di Santo, Giovanni ^{[1
]}

Blankenburg, Stephan ^{[2
]}

Castellarin-Cudia, Carla ^{[1
]}

Fanetti, Mattia ^{[1
]}

Borghetti, Patrizia ^{[3
,4
]}

Sangaletti, Luigi ^{[3
,4
]}

Floreano, Luca ^{[5
]}

Verdini, Alberto ^{[5
]}

Magnano, Elena ^{[5
]}

Bondino, Federica ^{[5
]}

Pignedoli, Carlo A. ^{[2
]}

Manh-Thuong Nguyen ^{[2
]}

Gaspari, Roberto ^{[2
]}

Passerone, Daniele ^{[2
]}

Goldoni, Andrea ^{[1
]}

机构：

[1] Sincrotrone Trieste SCpA, INSTM Micro & Nanocarbon Lab, I-34149 Trieste, Italy

[2] Empa, Swiss Fed Labs Mat Sci & Technol, Nanotech Surfaces Lab, CH-8600 Dubendorf, Switzerland

[3] Univ Cattolica Sacro Cuore, Interdisciplinary Labs Adv Mat Phys, Brescia, Italy

[4] Univ Cattolica Sacro Cuore, Dipartimento Matemat & Fis, Brescia, Italy

[5] Ist Officina Mat CNR, Lab TASC, I-34149 Trieste, Italy

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2011年 / 17卷 / 51期

基金：

瑞士国家科学基金会;

关键词：

C-C activation; density functional calculations; porphyrinoids; scanning probe microscopy; X-ray spectroscopy; MOLECULAR-DYNAMICS; SIMULATIONS; METALATION; PORPHYRINS; PRINCIPLES; SURFACES; ATOMS; WATER;

D O I：

10.1002/chem.201102268

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：14354 / 14359

页数：6

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