Synthesis and the crystal and molecular structures of 4-(piperidyl-1)-2- phenylpyrido[2,3-a]anthraquinone-7,12 Mono- and dibromohydrates (HL)Br • 3H2O and (H2 L)Br2 • 3H2O

4-(Piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 monobromohydrate (HL)Br • 3H2O (I) and 4-(piperidyl-1)-2-phenylpyrido[2,3-a] anthraquinone-7,12 dibromohydrate (H2 L)Br2 • 3H 2O (II) are isolated in the crystalline state. The crystal structures of compounds I and II are determined using X-ray diffraction. It is established that the protonation of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 proceeds primarily through the pyridine atom at pH 2-3. The attachment of the second proton occurs through the piperidine nitrogen atom at pH 1. © 2009 Pleiades Publishing, Ltd.

Авторы
Номер выпуска
1
Язык
Английский
Страницы
68-73
Статус
Опубликовано
Том
54
Год
2009
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
Atomic physics; Crystalline materials; Crystal and molecular structures; Crystalline state; Nitrogen atoms; X- ray diffractions; Ketones
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/3005/
Поделиться

Другие записи