Coordination compounds having formulae [AsPh4][Ln(NMA)4](1Ln ), Ln(NMA)3(tppo)2 (2Ln ), Ln(NMA)3- (bipyO2)(3Ln ), Ln(NMA)3(phen) (4Ln ) and Ln(NMA)3(terpy) (5Ln ) (Ln = Y and some lanthanides; NMA = con- jugate base of nitromalonaldehyde; tppo = triphenylphosphine oxide; bipyO2 = 2,2’-bipyridine-N,N’- dioxide; phen = 1,10-phenanthroline; terpy = 2,2’:6’,2’’-terpyridine) were synthesized and characterized and X-ray diffraction data were collected for [AsPh4][Y(NMA)4](1Y ). The neutral europium derivatives showed appreciable luminescence in the solid state upon excitation with UV light and photoluminescence measurements were carried out. These compounds were used as dopants for the preparation of lumine- scent poly(methyl methacrylate). Luminescent polyvinylpyrrolidone samples were obtained by reacting the pure polymer with water solutions containing NMA and trivalent europium ions.
Yttrium and lanthanide complexes of -dialdehydes: synthesis, characterization and luminescence of coordination compounds with the conjugate base of nitromalonaldehyde
BERTOLASI, Valerio;
2014
Abstract
Coordination compounds having formulae [AsPh4][Ln(NMA)4](1Ln ), Ln(NMA)3(tppo)2 (2Ln ), Ln(NMA)3- (bipyO2)(3Ln ), Ln(NMA)3(phen) (4Ln ) and Ln(NMA)3(terpy) (5Ln ) (Ln = Y and some lanthanides; NMA = con- jugate base of nitromalonaldehyde; tppo = triphenylphosphine oxide; bipyO2 = 2,2’-bipyridine-N,N’- dioxide; phen = 1,10-phenanthroline; terpy = 2,2’:6’,2’’-terpyridine) were synthesized and characterized and X-ray diffraction data were collected for [AsPh4][Y(NMA)4](1Y ). The neutral europium derivatives showed appreciable luminescence in the solid state upon excitation with UV light and photoluminescence measurements were carried out. These compounds were used as dopants for the preparation of lumine- scent poly(methyl methacrylate). Luminescent polyvinylpyrrolidone samples were obtained by reacting the pure polymer with water solutions containing NMA and trivalent europium ions.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.