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The design and synthesis of pyrazine amide ligands suitable for the "tiles" approach to molecular weaving with octahedral metal ions

Cockriel, David L.; McClain, James M.; Patel, Kaushal C.; Ullom, Robert; Hasley, Travis R.; Archibald, Stephen J.; Hubin, Timothy J.

Authors

David L. Cockriel

James M. McClain

Kaushal C. Patel

Robert Ullom

Travis R. Hasley

Timothy J. Hubin



Abstract

The pyrazine-containing ligands 1 (pyrazine-2-carboxylic acid (pyridine-2-ylmethyl)-amide) and 2 (pyrazine-2,5-dicarboxylic acid bis[(pyridine-2-yimethyl)-amide]) have been synthesized and characterized in order to probe their ability to form polynuclear transition metal complexes. A mixed oxidation state Co3+-Co2+-Co3+ complex with deprotonated ligand 1, [Co(1(-))(2)Co(H2O)(2)Cl2Co(1(-))(2)]Cl-2, has been obtained and characterized by X-ray crystal structure determination. The central octahedral cobalt(II) ion in the complex is coordinated by one pyrazine nitrogen from each of the surrounding octahedral cobalt(III), ions which are meridianally coordinated by two of the ligands 1-. Key aspects of both ligands are their rigid meridianal coordination, coupled with the pyrazine core, which demands coordination of metal ions on opposite sides of the ligand strand. (c) 2007 Elsevier B.V. All rights reserved.

Journal Article Type Article
Publication Date 2008-01
Journal INORGANIC CHEMISTRY COMMUNICATIONS
Print ISSN 1387-7003
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 11
Issue 1
Pages 1-4
APA6 Citation Cockriel, D. L., McClain, J. M., Patel, K. C., Ullom, R., Hasley, T. R., Archibald, S. J., & Hubin, T. J. (2008). The design and synthesis of pyrazine amide ligands suitable for the "tiles" approach to molecular weaving with octahedral metal ions. Inorganic Chemistry Communications, 11(1), 1-4. https://doi.org/10.1016/j.inoche.2007.10.006
DOI https://doi.org/10.1016/j.inoche.2007.10.006
Keywords Cobalt; Molecular weaving; Amide; Pyrazine
Publisher URL https://www.sciencedirect.com/science/article/pii/S1387700307003632?via%3Dihub
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