Crystal and molecular structures of selected oxidative nitration products of aminopyrazine and 2-amino-3-hydroxypyridine

2,3,5,6-Tetraoxopiperazine (I), ammonium 2,3,5,6-tetraoxo-4-nitropyridinate crystal hydrate (II), co-crystallized dimethylammonium 2,3,5,6-tetraoxo-4- nitropyridinate and dimethylammonium chloride (III), and ammonium 2,6-dioxo-3,5-dinitropyridinate (IV) were isolated in the crystalline state and studied by X-ray diffraction. All heterocycles are planar and nonaromatic. They consist of two conjugated moieties linked together by C-C single bonds. The short C.O contacts (2.841-3.048 Å), which link the molecules to form zigzag two-dimensional chains, make a considerable contribution to the formation of the crystal structure of I, whereas hydrogen bonds that form three-dimensional networks play the most important role in the formation of the crystals of II-IV. © 2014 Pleiades Publishing, Inc.

Номер выпуска
1
Язык
Английский
Страницы
60-65
Статус
Опубликовано
Том
59
Год
2014
Организации
  • 1 Peoples' Friendship University of Russia, ul. Miklukho-Maklaya 6, Moscow 117198, Russian Federation
  • 2 Karpov Institute of Physical Chemistry, ul. Vorontsovo pole 10, Moscow 105064, Russian Federation
Ключевые слова
Crystal and molecular structure; Crystal hydrates; Crystalline state; Dimethylammonium; Heterocycles; Single bond; Three-dimensional networks; Chlorine compounds; Crystalline materials; Hydrogen bonds; X ray diffraction; Hydrates
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/4979/