Journal
DALTON TRANSACTIONS
Volume 41, Issue 16, Pages 4919-4926Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2dt12108e
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- Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) through the Centro di Eccellenza CEMIF.CAL [CLAB01TYEF]
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Synthesis, crystal structural determination and photophysical properties of a series of heteroleptic cationic cyclometalated iridium(III) derivatives of general formula [(ppy)(2)Ir(en)]X (X = ClO4- (1), PF6- (2), Cl- (3), BPh4- (4)), are described. The assembly of the common molecular building block allows to get highly luminescent crystalline materials or to assemble poorly luminescent supramolecular channelled architectures, for which the additional contribution of oxygen quenching effects has been observed. Moreover, the high reproducibility of the preparations of the crystalline materials in their specific crystalline phases, makes the control of the supramolecular organization of photo-active iridium(III) complexes within the crystalline structures a useful synthetic procedure for the construction of highly luminescent materials.
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