Spectroscopic Characterization on the Aggregation Behavior of Pyronin G with Tetraphenylborate anion

Lee, Beom-Gyu; 이범규; Kim, Kang-Jin; 김강진

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

e-Submission

Vol.8, No.1

PubReader Citation

Spectroscopic Characterization on the Aggregation Behavior of Pyronin G with Tetraphenylborate anion

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

1995, v.8 no.1, pp.47-53

Lee, Beom-Gyu
Kim, Kang-Jin

Lee, B., & Kim, K. (1995). Spectroscopic Characterization on the Aggregation Behavior of Pyronin G with Tetraphenylborate anion. , 8(1), 47-53.

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Abstract

The aggregation of Pyronin G($PG^+$) with tetraphenylborate($TPB^-$) anion has been investigated in aqueous solution by absorption and fluorescence spectrophotometries. The addition of 1,4-dioxane in aqueous solution of $PG^+$ and $TPB^-$ dissociates the aggregates of PG-TPB due to the increased hydrophobicity of the mixed solvent as compared to pure water, and yields higher $PG^+$ momomer concentration than aqueous $PG^+$ solution. The aggregation is not observed in any organic solvents except in water. The absorption maxima of $PG^+$ are correlated relatively well with ${\pi}^*$ scale and $(n^2-1)/(2n^2+1)$ funtion. But better linear relationship was obtained with ${\pi}^*$ scale for alcohols.