title: Synthesis and lanthanide coordination chemistry of trifluoromethyl derivatives of phosphinoylmethyl pyridine N-oxides.
abstract: A synthetic route for the formation of 2-[bis(2-trifluoromethylphenyl)phosphinoylmethyl]pyridine N-oxide (1c) and 2-[bis(3,5-trifluoromethylphenyl)phosphinoylmethyl]pyridine N-oxide (1d) was developed and the new ligands characterized by spectroscopic methods and single-crystal X-ray diffraction analyses. The coordination chemistry of 1c was examined with Yb(NO3)3 and the molecular structure of one complex, [Yb(1c)(NO3)3(DMF)].DMF.0.5H2O, was determined by single-crystal X-ray diffraction methods. The ligand is found to coordinate in a bidentate fashion, and this is compared against lanthanide coordination chemistry observed for the related ligand, [Ph2P(O)CH2] C5H4NO.
authors.affiliation: Department of Chemistry, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Sylvie
authors.initials: S
authors.lastname: Pailloux
authors.forename: Cornel Edicome
authors.initials: CE
authors.lastname: Shirima
authors.forename: Alisha D
authors.initials: AD
authors.lastname: Ray
authors.forename: Eileen N
authors.initials: EN
authors.lastname: Duesler
authors.forename: Karen Ann
authors.initials: KA
authors.lastname: Smith
authors.forename: Robert T
authors.initials: RT
authors.lastname: Paine
authors.forename: John R
authors.initials: JR
authors.lastname: Klaehn
authors.forename: Michael E
authors.initials: ME
authors.lastname: McIlwain
authors.forename: Benjamin P
authors.initials: BP
authors.lastname: Hay