Emission and absorption properties of the eight-coordinate [Pr(C7H9NO)(8)](ClO4)(3) complex with 3,4-lutidine N-oxide

The eight-coordinate complex of praseodymium(III) with 3,4-lutidine N-oxide , [Pr(C7H9NO)(8)](ClO4)(3), has been synthesised and characterised by means of several spectroscopic methods. The IR and Raman spectra have been measu red and are discussed. The electronic absorption, emission and excitation s pectra have been recorded and are analysed in terms of possible structures. The P-3(0) --> H-3(5.6), F-3(2.4) emissions have been observed and selecti ve excitation was used to assign the energy levels of Pr3+. The potential a pplication of this material as a precursor to light-conversion molecular sc hemes is discussed. (C) 2000 Elsevier Science S.A. All rights reserved..