Redox-switchable squaraines with extended conjugation

Buschel, Michael ; Ajayaghosh, Ayyappanpillai ; Arunkumar, Easwaran ; Daub, Jorg (2003) Redox-switchable squaraines with extended conjugation Organic Letters, 5 (17). pp. 2975-2978. ISSN 1523-7060

Full text not available from this repository.

Official URL:

Related URL:


The redox chemistry of π-extended squaraines is investigated using cyclic voltammetry, in-situ spectroelectrochemistry and quantum chemical calculations. Squaraine 1 is reversibly oxidized to the radical cation and dication whereas reduction shows limited electrochemical but fully chemical reversibility. The radical cation of 1 reveals absorption bands at 1000 nm and a "two-band feature" at 1600 nm. Their implications on the intramolecular electron transfer are discussed.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:376
Deposited On:21 Sep 2010 04:44
Last Modified:03 Jan 2011 04:23

Repository Staff Only: item control page