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Your search keyword '"Spillmann, Hannes"' showing total 3 results
Start Over Author "Spillmann, Hannes" Topic chemistry
3 results on '"Spillmann, Hannes"'

1. Density functional theory analysis of carboxylate-bridged diiron units in two-dimensional metal-organic grids

Author

Seitsonen, Ari P., Lingenfelder, Magali, Spillmann, Hannes, Dmitriev, Alexandre, Stepanow, Sebastian, Lin, Nian, Kern, Klaus, and Barth, Johannes V.

Subjects
Density functionals -- Analysis, Coordination compounds -- Chemical properties, Chemistry
Abstract

An ab initio theoretical analysis for an exemplary metal-organic coordination networks (MOCN) is reported, which was modeled using density functional theory (DFT) calculations. An indepth theoretical investigation is presented of a 2D-metal-organic coordination network comprising functional carboxylate-bridged diiron units.

Published
2006

2. Direct observation of chiral metal-organic complexes assembled on a Cu(100) surface

Author

Messina, Paolo, Dmitriev, Alexandre, Nian Lin, Spillmann, Hannes, Barth, Johannes V., Abel, Mathieu, and Kem, Klaus

Subjects
Ligands -- Research, Chirality -- Research, Copper -- Chemical properties, Chemistry
Abstract

Single-molecule level STM observations of chiral complexes generated by the assembly of achiral components and metal centers at a metal surface are reported. The findings indicate that a square planar ML(sub 4) complex can be chiral in two dimensions when symmetric bidentate ligands are employed which link to the metal atom in an organized unidentate fashion.

Published
2002

3. Supramolecular Engineering Of Metal-Organic Networks At Surfaces.

Author

Li, Nian, Dmitriev, Alexander, Spillmann, Hannes, Messina, Paolo, Lingenfelder, Magali, Stepanow, Sebastian, Barth, Johannes V., and Kern, Klaus

Subjects
SUPRAMOLECULAR chemistry, PHYSICAL & theoretical chemistry, ULTRAHIGH vacuum, SCANNING tunneling microscopy, CHEMISTRY, RESEARCH
Abstract

We report the construction of complex metal-organic assemblies at surfaces using concepts from coordination chemistry. Well-ordered supramolecular assemblies and metal-organic coordination networks with specific topologies and a high structural stability have been fabricated under ultra-high vacuum conditions by sequential deposition of polyfunctional organic molecules and Fe atoms onto an atomically clean Cu(100) substrate. The structures were investigated at the molecular level by in-situ scanning tunneling microscopy. The precise control of the concentration ratio of the components and the annealing treatment allow for the assembly of distinct architectures. © 2003 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2003
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