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Aaron JJ, Spann WJ, Winefordner JD. Quantitative phosphorescence study of interactions of cytosine and cytidine and its nucleotides in frozen aqueous solution: evidence for anomalous heavy-atom effect. Talanta. 1973;20(9):855-65doi: 10.1016/0039-9140(73)80201-2.
Aaron, J. J., Spann, W. J., & Winefordner, J. D. (1973). Quantitative phosphorescence study of interactions of cytosine and cytidine and its nucleotides in frozen aqueous solution: evidence for anomalous heavy-atom effect. Talanta, 20(9), 855-65. https://doi.org/10.1016/0039-9140(73)80201-2
Aaron, J J, et al. "Quantitative phosphorescence study of interactions of cytosine and cytidine and its nucleotides in frozen aqueous solution: evidence for anomalous heavy-atom effect." Talanta vol. 20,9 (1973): 855-65. doi: https://doi.org/10.1016/0039-9140(73)80201-2
Aaron JJ, Spann WJ, Winefordner JD. Quantitative phosphorescence study of interactions of cytosine and cytidine and its nucleotides in frozen aqueous solution: evidence for anomalous heavy-atom effect. Talanta. 1973 Sep;20(9):855-65. doi: 10.1016/0039-9140(73)80201-2. PMID: 18961355.
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Talanta. 1973 Sep;20(9):855-65. doi: 10.1016/0039-9140(73)80201-2.

Quantitative phosphorescence study of interactions of cytosine and cytidine and its nucleotides in frozen aqueous solution: evidence for anomalous heavy-atom effect.

Talanta

J J Aaron, W J Spann, J D Winefordner

Affiliations

  1. Department of Chemistry, University of Florida, Gainesville, Florida 32601, U.S.A.

PMID: 18961355 DOI: 10.1016/0039-9140(73)80201-2

Abstract

Phosphorescence vs. pH titration curves of cytosine, cytidine, cytidine-5'-mono-phosphate (CMP), -diphosphate (CDP) and -triphosphate (CTP) were obtained in methanol/water 10/90 v/v and in various aqueous sodium halide solutions frozen at 77 degrees K. As shown by the shape of the titration curve, molecular aggregates or "puddles" of cytosine and cytidine were shown to occur only in relatively concentrated frozen solution (10(-3)M), these aggregates being dissociated in dilute frozen solutions (

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