Тип публикации: статья из журнала
Год издания: 2015
Идентификатор DOI: 10.1016/j.poly.2015.05.048
Ключевые слова: 1,3-Diethyl-2-thiobarbituric acid, Alkali ion, thallium(1) and ammonium cations, Coordination compounds, X-ray diffraction, Thermal analysis, 1 3-Diethyl-2-thiobarbituric acid, Alkali ion thallium(I) and ammonium cations
Аннотация: Four new compounds of 1,3-diethyl-2-thiobarbituric acid (C8H11N2O2S, Hdetba) with Rb+, Cs+, Tl+ and NH4+ ions were prepared by Hdetba neutralization with the metal carbonates or ammonium hydroxide in aqueous solution. The colorless crystals have been investigated using X-ray diffraction techniques, differential scanning calorimetryПоказать полностью, thermogravimetry and infrared spectroscopy. The coordination compounds of MDetba with M = Rb, Cs and Tl crystallize in the orthorhombic space group P2(1)2(1)2(1), but compound NH(4)Detba crystallizes in the triclinic space group P (1) over bar. The MDetba structures were compared at the molecular and supramolecular levels. The Detba(-) ion in the NH4+ compound forms conformer (A) with two diethyl groups on one side of the ion ring, whereas the Detba(-) ion in the Rb(l), Cs(I) and Tl(I) compounds forms conformer (B) with two diethyl groups on different sides of the ring. The results of IR spectroscopy and thermal analysis are consistent with the X-ray data. (C) 2015 Elsevier Ltd. All rights reserved.
Журнал: POLYHEDRON
Выпуск журнала: Vol. 98
Номера страниц: 113-119
ISSN журнала: 02775387
Место издания: OXFORD
Издатель: PERGAMON-ELSEVIER SCIENCE LTD