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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 (CC BY 3.0).

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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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