Water-soluble benzophenoxazine dyes: syntheses, derivatization and photophysical studies

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Title: Water-soluble benzophenoxazine dyes: syntheses, derivatization and photophysical studies
Author: Jose, Jiney
Abstract: A set of three benzophenoxazine dyes , two completely soluble and one partially soluble in aqueous media , has been prepared and their spectroscopic properties examined . These dyes can be used as either donor or acceptor in synthesis of through -bond energy transfer cassettes . Structural modifications prevented aggregation in water and improved their fluorescence properties in water . Their absorption and emission were studied in both organic and aqueous media . Two of the three dyes have superior quantum yields in aqueous media as compared to other reported dyes . Improved quantum yield makes these dyes attractive candidates for biological studies in aqueous media . We have also prepared alkynes and iodo derivatives of benzophenoxazines , which can be used for synthesis of water -soluble , through -bond , energy transfer cassettes . Alkynes were prepared via Sonogashira coupling .
URI: http : / /hdl .handle .net /1969 .1 /4915
Date: 2007-04-25

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Water-soluble benzophenoxazine dyes: syntheses, derivatization and photophysical studies. Available electronically from http : / /hdl .handle .net /1969 .1 /4915 .

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