Journal ArticleDOI
Polarography of some sulphur-containing compounds. XVI. Polarographic and spectral investigation of acid-base equilibria in aqueous solutions of 2-thiobarbituric acids with substituents on sulphur.
W. F. Smyth,G. Svehla,Petr Zuman +2 more
TLDR
In this article, it was shown that reduction waves corresponding to formation of mercury compounds are formed by the unprotonated species Reduction waves of compound 1, and uv absorption bands and anodic waves of compounds I-IV are suitable for analytical purposes.About:
This article is published in Analytica Chimica Acta.The article was published on 1970-10-01. It has received 31 citations till now. The article focuses on the topics: Protonation & Polarography.read more
Citations
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Journal ArticleDOI
Barbituric and thiobarbituric acids: a conformational and spectroscopic study.
TL;DR: A conformational study on Barbiturics and Thiobarbituric acids was performed at ab initio MP2/6-31G** level on the neutral, protonated, mono- and di-anionic forms through the ZINDO approach.
Journal ArticleDOI
A convenient method for the preparation of barbituric and thiobarbituric acid transition metal complexes.
TL;DR: These new barbiturate complexes were synthesized and characterized by elemental analysis, molar conductivity, magnetic measurements, spectral methods (mid infrared, (1)H NMR, mass, X-ray powder diffraction and UV/vis spectra) and simultaneous thermal analysis (TG and DTG) techniques.
Journal ArticleDOI
Polarographic reduction of aldehydes and ketones
A. Ryvolová-Kejharová,Petr Zuman +1 more
TL;DR: In this article, the reduction of chalcone at the dropping mercury electrode is expressed by scheme (A)−(U) with an approximate value p K 6 =10.2 and p K 9 =8.75.
Journal ArticleDOI
Synthesis and characterization of barbituric and thiobarbituric acid complexes
TL;DR: In this article, the synthesis of barbituric and thiobarbiturric acid complexes derived from cobalt(II), nickel(II) and copper(II)-salts were carried out.
Journal ArticleDOI
Spectroscopic and thermal degradation behavior of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) complexes with thiopental sodium anesthesia drug
Moamen S. Refat,Moamen S. Refat +1 more
TL;DR: In this article, a new series of Cr(III), Mn(II), Fe(III) and Zn(II) complexes have been synthesized with thiopental sodium anesthesia drug.
References
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A simple and sensitive colorimetric assay of benzylhydrazine
Tetsuo Satoh,Kayoko Moroi +1 more
TL;DR: In this paper, a colorimetric determination of benzylhydrazine is described based on the color development by p-dimethylaminobenzaldehyde in the presences of metaphosphoric acid and glacial acetic acid.
Related Papers (5)
Polarography of some sulphur-containing compounds .17. polarographic and spectral investigation of acid-base equilibria in aqueous solutions of some amino and imino derivatives of 2-thiobarbituric acid
Franklin Smyth,P Zuman,G Svehla +2 more
Polarography of some sulphur-containing compounds: Part xv. polarographic and spectral investigation of acid-base equilibria in aqueous solutions of substituted 2-thiobarbiturates
W. F. Smyth,G. Svehla,Petr Zuman +2 more