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Utility of Anhydrous Neodymium Nitrate as a Precursor to Extended Organoneodymium Nitrate Networks
Inorganic Chemistry
  • William J. Evans, University of California, Irvine
  • Dimitri Giarikos, University of California, Irvine
  • Penny S. Workman, University of California, Irvine
  • Joseph W. Ziller, University of California, Irvine
Publication Date
9-6-2004
Disciplines
Peer Reviewed
1
Abstract
Hydrated neodymium nitrates can be readily transformed to anhydrous ether solvates which react with cyclopentadienyl reagents to make organometallic nitrate complexes with variable degrees of oligomerization. Heating Nd(NO3)3(H2O)6 in tetrahydrofuran at reflux, removal of solvent, drying at 100 °C under high vacuum, and addition of hot THF generates Nd(NO3)3(THF)3, 1. Using dimethoxyethane, Nd(NO3)3(DME)2, 2, can be obtained similarly. Addition of NaC5Me5 to 1 generates (C5Me5)Nd(NO3)3(THF)Na(THF)x complexes which crystallize as {[(C5Me5)(NO3)2Nd(THF)(μ-NO3)]2Na(THF)4}[Na(THF)6], 3, or [(C5Me5)Nd(THF)(μ-NO3)3Na(THF)2]n, 4, depending on the conditions. The trimetallic Nd2Na unit in 3 forms an extended system in 4 via bridging nitrates. Addition of KC5Me5 and 18-crown-6 to 1 generates another extended complex [(C5Me5)Nd(THF)(NO3)(μ-NO3)2K(18-crown-6)]n, 5, in which an 18-crown-6 ligated potassium links neodymium centers via two bridging nitrates and an agostic interaction between a C5Me5 methyl group and potassium.
Comments

©2004 American Chemical Society

DOI
10.1021/ic049187b
Citation Information
William J. Evans, Dimitri Giarikos, Penny S. Workman and Joseph W. Ziller. "Utility of Anhydrous Neodymium Nitrate as a Precursor to Extended Organoneodymium Nitrate Networks" Inorganic Chemistry Vol. 43 Iss. 18 (2004) p. 5754 - 5760 ISSN: 0020-1669
Available at: http://works.bepress.com/dimitri-giarikos/9/