Inherent Photoluminescence Properties of Poly(propyl ether imine) Dendrimers

Jayamurugan, G and Umesh, CP and Jayaraman, N (2008) Inherent Photoluminescence Properties of Poly(propyl ether imine) Dendrimers. In: Organic Letters, 10 (1). pp. 9-12.

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Abstract

Hydroxyl group terminated poly(propyl ether imine) dendrimers of 1 to 5 generations absorb in the region of 260-340 nm, in MeOH and aqueous solutions. Excitation of a solution of the dendrimers at 330 nm led to an emission at $\sim 390 nm$. The emission intensities increased under acidic pH and in more viscous solvents. The presence of air did not affect the emission profiles, as also aging of a dendrimer solution for prolonged periods. Lifetime measurements show at least two species responsible for the emission. Anions perchlorate, periodate, nitrite, and pyridinium methyliodide quenched the fluorescence efficiently, among several anions tested.

Item Type:	Journal Article
Publication:	Organic Letters
Publisher:	American Chemical Society
Additional Information:	Copyright of this article belongs to American Chemical Society.
Department/Centre:	Division of Chemical Sciences > Organic Chemistry
Date Deposited:	24 Jul 2008
Last Modified:	19 Sep 2010 04:48
URI:	http://eprints.iisc.ac.in/id/eprint/15224

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