Diane Dickie - Synthesis and selected lanthanide coordination chemistry of new ((1H-pyrazol-1-yl)methyl)pyridine and -pyridine 1-oxide ligands.

Document created by Diane Dickie on Nov 17, 2015
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  Ouizem, Sabrina, Rosario-Amorin, Daniel, Dickie, Diane A., Hay,   Benjamin P., Paine, Robert T. Polyhedron 101  37-47

  Abstract: Syntheses for new potentially   chelating ligands, 2,6-bis((1H-pyrazol-1-yl)methyl)pyridine   1-oxide (2),   ((6-((1H-pyrazol-1-yl)methyl)pyridin-2-yl)methyl)diphenylphosphine   oxide (4) and   2-((1H-pyrazol-1-yl)methyl)-6-((diphenylphosphoryl)methyl)pyridine   1-oxide (5), that are based upon pyridine or pyridine N-oxide   platforms functionalized with pyrazol-1-ylmethyl and   diphenylphosphinoylmethyl substituents, are reported along with   results from mol. modeling analyses that assess the strain energy   encountered by the ligands in tridentate chelate interactions for   gas phase [Eu(L)3+]complexes. The prepd. complexes are   (5)2.CH2Cl2.H2O (5), [Eu(2)2(NO3)3] (6), [Dy(4)2(NO3)3(MeOH)2]   (7), [Pr(5)2(NO3)3] (8), and [Yb(5)2(NO3)3] (8). Coordination   chem. with selected lanthanide nitrates is described along with   X-ray crystal structure detns. for the three ligands and three   representative coordination complexes. [on SciFinder(R)]

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