Benzi, Paola

Diana, Eliano

Garino, Claudio

Giordana, Alessia

Gobetto, Roberto

Priola, Emanuele

Rabezzana, Roberto

Volpi, Giorgio

Institutional Research Information System University of Turin

New blue fluorescent Zinc(II) complexes with high quantum yield based on tuneable 1,3-substituted-imidazo[1,5-a]pyridine ligandsGiorgio Volpi,* Emanuele Priola, Claudio Garino, Roberto Rabezzana, Paola Benzi, Alessia Giordana, Eliano Diana and Roberto Gobettoa Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Italye-mail: giorgio.volpi@unito.itNew Zinc(II) complexes have been synthesized and studied employing fluorescent 1,3-substituted imidazo[1,5-a]pyridine derivatives introducing both electron-donating and electron-withdrawing moieties in position 3 on the ligand skeleton. The obtained compounds have been characterized with different spectroscopic techniques, their structure has been defined by single-crystal X-ray diffraction, mass spectrometry and elemental analysis, their optical properties have been discussed in relation to their chemical structures. The comparison between the emission spectra of the free ligand and corresponding Zinc(II) complexes shows an intense hypsochromic shift, due to the modification of the ligands conformation upon metal coordination, and an extraordinary increment of the quantum yield after complexation.		Figure 1: Structures and emission spectra of L (imidazo[1,5-a]pyridine ligands) and corresponding Zn(L)Cl2 complexes in dichloromethane solution.___________1

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“New blue fluorescent Zinc(II) complexes with high quantum yield based on tuneable 1,3-substituted-imidazo[1,5-a]pyridine ligands

&#8220;New blue fluorescent Zinc(II) complexes with high quantum yield based on tuneable 1,3-substituted-imidazo[1,5-a]pyridine ligands

“New blue fluorescent Zinc(II) complexes with high quantum yield based on tuneable 1,3-substituted-imidazo[1,5-a]pyridine ligands

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Institutional Research Information System University of Turin

&#8220;New blue fluorescent Zinc(II) complexes with high quantum yield based on tuneable 1,3-substituted-imidazo[1,5-a]pyridine ligands

Abstract

Similar works

Full text

Available Versions

Institutional Research Information System University of Turin

“New blue fluorescent Zinc(II) complexes with high quantum yield based on tuneable 1,3-substituted-imidazo[1,5-a]pyridine ligands