3 years ago

1D Chains of Diruthenium Tetracarbonyl Sawhorse Complexes

Tatyana Shubina, Johannes Tucher, Christian R. Wick, Nicolai Burzlaff, Stephan Pflock, Nico Fritsch, Thomas Waidmann, Timothy Clark, Sabine Maier, Christian Steiner, Pavlo O. Dral
The syntheses of five 1D coordination polymers containing the sawhorse type unit [Ru₂(μ-OAc)₂(CO)₄] linked by various bridging N,N donor ligands are reported. Various π-conjugated linker such as trans-1,2-bis(N-methyl)imidazol-2-yl)ethylene (trans-bie), pyrazine (pyz), 4,4'-bipyridine (4,4'-bipy) and 1,2-di(4-pyridyl)ethylene (bpe) as well as aliphatic linker (DABCO) were applied in the syntheses. The formation of 1D coordination polymers was proven by crystal structure determinations of two of the polymeric materials. The geometries and electronic structures of all polymers were analysed further using CASSCF/CASPT2 and DFT calculations based on monomeric model compounds. Finally, first attempts regarding the deposition of the 1D chain, respectively the sawhorse fragment and/or the ligands on an HOPG surface analysed with STM measurements are also reported.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/ejic.201701246

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