LXXII.—On some derivatives of anthraquinone
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چکیده
منابع مشابه
Spectrophotometric Determination of Acidity Constants of Some Anthraquinone Derivatives in Methanol-Water Mixtures
A spectrophotometric method is used to determine the acidity constants of some derivatives of 9,10-anthraquinone in binary methanol-water mixtures at 25 °C. There is a linear inverse relationship between pKa of all acids and the mole fraction of methanol in the mixed solvent. The influence of substituents in the molecular structure on the ionization constants is discussed.
متن کاملA Cyclic Voltammetric Study of the Aqueous Electrochemistry of Some Anthraquinone Derivatives on Carbon Paste Electrode
The aqueous electrochemistry of a number of anthraquinone derivatives was studied by using cyclic voltammetry at the surface of carbon paste electrode (CPE). From measurements of the half-wave potential as a function of pH, the potential - pH diagrams were constructed for each compound. The values of formal potentials and the pK'a of some different redox and acid-base couples inv...
متن کاملAnthraquinone Derivatives in Aqueous Flow Batteries
M. R. Gerhardt, Dr. Q. Chen, Prof. R. G. Gordon, Prof. M. J. Aziz Harvard John A. Paulson School of Engineering and Applied Sciences Cambridge, MA 02138, USA E-mail: [email protected] L. Tong, Dr. R. Gómez-Bombarelli, Prof. A. Aspuru-Guzik, Prof. R. G. Gordon Department of Chemistry and Chemical Biology Harvard University Cambridge, MA 02138, USA Prof. M. P. Marshak Department of Chemistry and ...
متن کاملspectrophotometric determination of acidity constants of some anthraquinone derivatives in methanol-water mixtures
a spectrophotometric method is used to determine the acidity constants of some derivatives of 9,10-anthraquinone in binary methanol-water mixtures at 25 °c. there is a linear inverse relationship between pka of all acids and the mole fraction of methanol in the mixed solvent. the influence of substituents in the molecular structure on the ionization constants is discussed.
متن کاملa cyclic voltammetric study of the aqueous electrochemistry of some anthraquinone derivatives on carbon paste electrode
the aqueous electrochemistry of a number of anthraquinone derivatives was studied by using cyclic voltammetry at the surface of carbon paste electrode (cpe). from measurements of the half-wave potential as a function of ph, the potential - ph diagrams were constructed for each compound. the values of formal potentials and the pk'a of some different redox and acid-base couples involved in each c...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1885
ISSN: 0368-1645
DOI: 10.1039/ct8854700679