The synthesis of a new fluorescent poly(propylenamine) dendrimer from second generation, having eight 4-N-methylpiperazine-1,8-naphthalimide units in its periphery is described. The photophysical characteristics of the new dendrimer have been investigated in organic solvents of different polarity. The discussion reveals how different metal cations affect the dendrimer fluorescence. A possible mechanism of the photoinduced electron transfer occurring in the dendrimer molecule as result of the interaction between the 'host' dendrimer and the 'guest' metal ions has been suggested. (C) 2011 Elsevier B.V. All rights reserved.
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Sofia Univ St Kliment Ohridski, Fac Med, Sofia 1407, Bulgaria
Assiut Univ, Fac Sci, Dept Chem, Assiut 71516, EgyptSofia Univ St Kliment Ohridski, Fac Med, Sofia 1407, Bulgaria
Said, Awad I. I.
Staneva, Desislava
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Univ Chem Technol & Met, Dept Text Leader & Fuels, Sofia 1756, BulgariaSofia Univ St Kliment Ohridski, Fac Med, Sofia 1407, Bulgaria
Staneva, Desislava
Grabchev, Ivo
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Sofia Univ St Kliment Ohridski, Fac Med, Sofia 1407, BulgariaSofia Univ St Kliment Ohridski, Fac Med, Sofia 1407, Bulgaria