Novel 1- and 9-aminoanthracene/3-aminobenzanthrone bichromophores exhibiting through-bond excitation energy transfer

Almonasy, Numan; Přichystalová, Hana; Nepraš, Miloš; Bureš, Filip; Michl, Martin; Čermák, Jan; Grampp, Günter

doi:10.1016/j.dyepig.2015.03.011

Cited by 2 publications

(2 citation statements)

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“…Studying the influence of solvent polarity on AZR emission quantum yield it was found that higher quantum yield is observed in polar solvents (up to 87% in dimethylsulphoxide) similar to previously described for 3‐methoxy‐benzanthrone and 3‐acetamidobenzanthrone . However, the studied dye has a sufficiently large luminescence yield in non‐polar solvents (up to 64% in chloroform) similar to some other derivatives of 3‐aminobenzanthrone with electron‐withdrawing group (such as 1,3,5‐triazine moiety) bounded to amino group …”

Section: Resultssupporting

confidence: 80%

“…bounded to amino group. [52,53] The following sequence of energy levels for benzanthrone derivatives with electron-withdrawing group at 3-position is considered established: Т ππ* < S ππ* < T nπ* < S nπ*. [54] The introduction of the acetyl moiety into the donor region of the molecule reduces the charge transfer from the amino group to carbonyl, thereby increasing the energy of the S ππ* state.…”

Section: Optical Propertiesmentioning

confidence: 99%

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Novel dye for detection of callus embryo by confocal laser scanning fluorescence microscopy

et al. 2019

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In the present study a new luminescent dye 3‐N‐(2‐pyrrolidinylacetamido)benzanthrone (AZR) was synthesized. Spectroscopic measurements of the novel benzanthrone 3‐aminoderivative were performed in seven organic solvents showing strong fluorescence. The capability of the prepared dye for visualization has been tested on flax, red clover and alfalfa to determinate the embryo in plant callus tissue cultures. Callus cells were stained with AZR and further analysed utilizing confocal laser scanning fluorescence microscopy. Performed experiments show high visualization effectiveness of newly synthesized fluorescent dye AZR that is efficient in fast and relatively inexpensive diagnostics of callus embryos that are problematic due to in vitro culture specificity.

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Section: Resultssupporting

confidence: 80%

Section: Optical Propertiesmentioning

confidence: 99%