Tetramethoxy-aminorhodamine (TMARh): a bichromophore, an improved fluorophore, and a pH-switch

Thomas Just Sørensen; Dong Shi; Bo Wegge Laursen

doi:10.1002/chem.201600496

Tetramethoxy-aminorhodamine (TMARh): a bichromophore, an improved fluorophore, and a pH-switch

Thomas Just Sørensen, Dong Shi, Bo Wegge Laursen

Department of Chemistry

5 Citations (Scopus)

Abstract

Rhodamine is one of the most widely used fluorescent dyes. Here, a new synthetic pathway to the popular dyes is reported and the effect of adding four methoxy groups to the molecular structure is investigated. Tetramethoxy-aminorhodamine (TMARh) is found to show superior pH switching compared to the rhodamine without the four methoxy groups, owing to changed properties of the dark "off" state and increased fluorescence intensity in the protonated "on" state.

Original language	English
Journal	Chemistry: A European Journal
Volume	22
Issue number	21
Pages (from-to)	7046–7049
Number of pages	4
ISSN	1521-3765
DOIs	https://doi.org/10.1002/chem.201600496
Publication status	Published - 17 May 2016

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abstract = "Rhodamine is one of the most widely used fluorescent dyes. Here, a new synthetic pathway to the popular dyes is reported and the effect of adding four methoxy groups to the molecular structure is investigated. Tetramethoxy-aminorhodamine (TMARh) is found to show superior pH switching compared to the rhodamine without the four methoxy groups, owing to changed properties of the dark {"}off{"} state and increased fluorescence intensity in the protonated {"}on{"} state.",

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AU - Shi, Dong

AU - Laursen, Bo Wegge

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AB - Rhodamine is one of the most widely used fluorescent dyes. Here, a new synthetic pathway to the popular dyes is reported and the effect of adding four methoxy groups to the molecular structure is investigated. Tetramethoxy-aminorhodamine (TMARh) is found to show superior pH switching compared to the rhodamine without the four methoxy groups, owing to changed properties of the dark "off" state and increased fluorescence intensity in the protonated "on" state.

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ER -

Tetramethoxy-aminorhodamine (TMARh): a bichromophore, an improved fluorophore, and a pH-switch

Abstract

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