STM Investigation of Molecular Architectures of Porphyrinoids on a Ag 111 Surface is popular PDF and ePub book, written by Florian Buchner in 2010-11-09, it is a fantastic choice for those who relish reading online the Science genre. Let's immerse ourselves in this engaging Science book by exploring the summary and details provided below. Remember, STM Investigation of Molecular Architectures of Porphyrinoids on a Ag 111 Surface can be Read Online from any device for your convenience.
STM Investigation of Molecular Architectures of Porphyrinoids on a Ag 111 Surface Book PDF Summary
The functionalization of surfaces on the nanoscale is one of the most fascinating and at the same time challenging topics in science. It is the key to tailoring catalysts, sensors, or devices for solar energy conversion, whose functional principle is based on the interaction of an active solid surface with another (liquid or gaseous) phase. As an example, planar transition metal complexes adsorbed on solid supports are promising candidates for novel heterogeneous catalysts. An important feature of these catalysts, compared to supported metal clusters, is the fact that the active sites, i. e. , the coordinated metal centers with their vacant axial coordination sites, are well de?ned and uniform. Metalloporphyrinoids are particularly suitable in this respect because they combine a structure forming element—the rigid molecular frame, which often induces long range order—with an active site, the coordinated metal ion. Its planar coordination environment leaves two axial coordination sites available for additional ligands. If adsorbed on a surface, one of these axial sites is occupied by the underlying substrate. The resulting electronic interaction with the surface can be used to tailor the electronic structure and thereby the reactivity of the metal center. The remaining site is free for the attachment of molecules (sensor functionality) and/or operates as a reaction center (single-site catalysis). Prototype examples are omnipresent in nature, where in particular metallo-tetrapyrrols play a decisive role in important biological processes, with the most prominent examples being iron porphyrins in heme, magnesium porphyrins in chlorophyll, and cobalt corrin in vitamin B12.
Detail Book of STM Investigation of Molecular Architectures of Porphyrinoids on a Ag 111 Surface PDF
- Author : Florian Buchner
- Release : 09 November 2010
- Publisher : Springer Science & Business Media
- ISBN : 9783642148408
- Genre : Science
- Total Page : 182 pages
- Language : English
- PDF File Size : 7,8 Mb
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