Cobalt-Dinitrogen Complexes with Weakened N-N Bonds

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Article discussing research on cobalt-dinitrogen complexes with weakened N-N bonds.

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2 p.

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Ding, Keying; Pierpont, Aaron W.; Brennessel, William W.; Lukat-Rodgers, Gudrun; Rodgers, Kenton R.; Cundari, Thomas R., 1964- et al. June 19, 2009.

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Article discussing research on cobalt-dinitrogen complexes with weakened N-N bonds.

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2 p.

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Reprinted with permission from the Journal of the American Chemical Society. Copyright 2009 American Chemical Society.

Abstract: Reported N₂ complexes of cobalt do not have substantial weakening of the N-N bond. Using diketiminate ligands to enforce three-coordinate geometries, we have synthesized several novel CoNNCo complexes. In formally univalent complexes, cobalt is poorer than iron at weakening the N-N bond, but in formally zerovalent complexes, cobalt and iron give similar N-N weakening. The weakening is due to cobalt-to-N₂ π-backbonding, and potassium cations pull more electron density into N₂. These results show that the low coordination number of a trigonal-planar geometry is impetus enough to make even the electronegative cobalt weaken the N-N bond of N₂.

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  • Journal of the American Chemical Society, 2009, Washington DC: American Chemical Society, pp. 9471-9472

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  • Publication Title: Journal of the American Chemical Society
  • Volume: 131
  • Issue: 27
  • Page Start: 9471
  • Page End: 9472
  • Peer Reviewed: Yes

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  • June 19, 2009

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  • Oct. 9, 2012, 10:02 a.m.

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  • May 29, 2014, 12:07 p.m.

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Ding, Keying; Pierpont, Aaron W.; Brennessel, William W.; Lukat-Rodgers, Gudrun; Rodgers, Kenton R.; Cundari, Thomas R., 1964- et al. Cobalt-Dinitrogen Complexes with Weakened N-N Bonds, article, June 19, 2009; [Washington, D.C.]. (digital.library.unt.edu/ark:/67531/metadc107793/: accessed July 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.