Issue 7, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

Synthesis, structure and luminescence properties of new rare earth metal complexes with 1-phenyl-3-methyl-4-acylpyrazol-5-ones†

Claudio Pettinari,*a   Fabio Marchetti,a   Riccardo Pettinari,a   Andrei Drozdov,*b   Sergei Troyanov,b   Alexander I. Voloshinc  and  Nail M. Shavaleevc  

* Corresponding authors

a Dipartimento di Scienze Chimiche, Università degli Studi, via S. Agostino 1, 62032 Camerino, Italy
E-mail: claudio.pettinari@unicam.it

b Moscow State University, Chemistry Department, Vorobjevy Gory, 119899 Moscow, Russia
E-mail: drozdov@inorg.chem.msu.ru

c Institute of Organic Chemistry, UFA Scientific Center of the Russian Academy of Sciences, 71 prosp. Oktyabrya, 450054 Ufa, Russia
E-mail: chemphys@anrb.ru

Abstract

The isolation and characterization of new lanthanide complexes of formula [Ln(QL)3(EtOH)(H2O)], (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb; HQL = 1-phenyl-3-methyl-4-phenylacetylpyrazol-5-one) [Ln(QL)3(H2O)2] (L = La or Lu), [Ln(QS)3(EtOH)(H2O)] (Ln = Tb or Eu; HQS = 1-phenyl-3-methyl-4-thienoylpyrazol-5-one, [Tb(QO)3(EtOH)(H2O)] (HQO = 1-phenyl-3-methyl-4-furanoylpyrazol-5-one) [Tb(QF)3(H2O)2] (HQF = 1-phenyl-3-methyl-4-trifluoroacetylpyrazol-5-one) and [NBu4][Ln(Q)4] (Ln = Eu or Tb, Q = QF or QL) is reported. The crystal structure of the tris(β-diketonate) complexes [Nd(QL)3(EtOH)(H2O)], [Dy(QL)3(EtOH)(H2O)](EtOH), and [Eu(QS)3(H2O)(EtOH)] containing eight-coordinate lanthanide ions in a square antiprismatic environment has been determined. The coordination environment in the tetrakis complex [NBu4][Eu(QF)4] is also close to the square antiprismatic one. Photoluminescence (PL) and phosphorescence studies of selected derivatives are reported.

Graphical abstract: Synthesis, structure and luminescence properties of new rare earth metal complexes with 1-phenyl-3-methyl-4-acylpyrazol-5-ones

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Article information

DOI
https://doi.org/10.1039/B108058J
Article type
Paper
Submitted
05 Sep 2001
Accepted
11 Dec 2001
First published
26 Feb 2002

J. Chem. Soc., Dalton Trans., 2002, 1409-1415

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Synthesis, structure and luminescence properties of new rare earth metal complexes with 1-phenyl-3-methyl-4-acylpyrazol-5-ones

C. Pettinari, F. Marchetti, R. Pettinari, A. Drozdov, S. Troyanov, A. I. Voloshin and N. M. Shavaleev, J. Chem. Soc., Dalton Trans., 2002, 1409 DOI: 10.1039/B108058J

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