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Inorganics 2013, 1(1), 32-45; doi:10.3390/inorganics1010032
Article

Facile and Selective Synthetic Approach for Ruthenium Complexes Utilizing a Molecular Sieve Effect in the Supporting Ligand

1,* , 1,†
,
1,†
 and
2
1 Department of Industrial Systems Engineering, Cluster of Science and Engineering, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan 2 Center for Practical and Project-Based Learning, Cluster of Science and Engineering, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan These authors contributed equally to this work.
* Author to whom correspondence should be addressed.
Received: 21 October 2013 / Revised: 28 November 2013 / Accepted: 3 December 2013 / Published: 9 December 2013
(This article belongs to the Special Issue Innovative Inorganic Synthesis)
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Abstract

It is extremely important for synthetic chemists to control the structure of new compounds. We have constructed ruthenium-based mononuclear complexes with the tridentate 2,6-di(1,8-naphthyridin-2-yl)pyridine (dnp) ligand to investigate a new synthetic approach using a specific coordination space. The synthesis of a family of new ruthenium complexes containing both the dnp and triphenylphosphine (PPh3) ligands, [Ru(dnp)(PPh3)(X)(L)]n+ (X = PPh3, NO2, Cl, Br; L = OH2, CH3CN, C6H5CN, SCN), has been described. All complexes have been spectroscopically characterized in solution, and the nitrile complexes have also been characterized in the solid state through single-crystal X-ray diffraction analysis. Dnp in the present complex system behaves like a “molecular sieve” in ligand replacement reactions. Both experimental data and density functional theory (DFT) calculations suggest that dnp plays a crucial role in the selectivity observed in this study. The results provide useful information toward elucidating this facile and selective synthetic approach to new transition metal complexes.
Keywords: synthesis; ruthenium complex; polypyridyl ligand; crystal structure; DFT calculation synthesis; ruthenium complex; polypyridyl ligand; crystal structure; DFT calculation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Oyama, D.; Fukuda, A.; Yamanaka, T.; Takase, T. Facile and Selective Synthetic Approach for Ruthenium Complexes Utilizing a Molecular Sieve Effect in the Supporting Ligand. Inorganics 2013, 1, 32-45.

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