Metal enolates luminescence

The transition d-metal enolate complexes generally exhibit no luminescence, and as a consequence there are few studies reported in the literature about the photoluminescence properties of these compounds. Indeed, the d-metal -diketonate complexes are... 

The two parts of the present volume contain seventeen chapters written by experts from eleven countries. They cover computational chemistry, structural chemistry by spectroscopic methods, luminescence, thermochemistry, synthesis, various aspect of chemical behavior such as application as synthons, acid-base properties, coordination chemistry, redox behavior, electrochemistry, analytical chemistry and biological aspects of the metal enolates. Chapters are devoted to special families of compounds, such as the metal ynolates and 1,2-thiolenes and, besides their use as synthons in organic and inorganic chemistry, chapters appear on applications of metal enolates in structural analysis as NMR shift reagents, catalysis, polymerization, electronic devices and deposition of metals and their oxides. 

The luminescence properties of rare-earth enolate complexes are largely dependent on the position of the excited electronic states (singlet and triplet) of the ligands. The experimental S states are usually obtained from the electronic absorption spectra of the metal complex in solution. On the other hand, the phosphorescence spectra of solid state Gd + complexes, obtained from the broad emission bands assigned to T Sq transitions, give information about the triplet state position of the enolate ligands (Figure 2). 

V. LUMINESCENCE INVOLVING s, p AND d METAL BLOCK ENOLATES A. d-TransItlon Metal Compounds... 

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