Stability constants of adducts of succinate copper(II) complexes with -cyclodextrin determined by capillary electrophoresis : сборник научных трудов

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1002/elps.201700378

Ключевые слова: Binding constants, Capillary electrophoresis, Cu(II) complexes, Host-guest complexes, Succinic acid

Аннотация: Cyclodextrins (CD) form inclusion complexes with different guests owing to the fact that the shape of the CD molecule is a truncated cone with a hydrophobic cavity. The adducts of CD with metal complexes remain scantily explored. In this study, the stability constants of the adducts between succinate copper(II) complexes and -CD was determined using capillary electrophoresis. The -CD concentration in background electrolytes (BGE) was found to influence on the effective electrophoretic mobility of the copper(II) complexes in succinate BGEs. It was shown that succinic acid and its anions and copper(II) ions did not form a significant amount of the inclusion complexes with -CD and the mobility change was caused by the adduct formation between succinate copper(II) complexes and -CD. The stability constants of these adducts were determined at 25 degrees C and ionic strength of 0.100M: log (CuL22-/-CD)=1.76 +/- 0.06, log (CuL0/-CD)=0.98 +/- 0.09. The [CuHL](+) and [CuHL2](-) species were found to do not form adducts with -CD.

Ссылки на полный текст

Издание

Журнал: ELECTROPHORESIS

Выпуск журнала: Vol. 39, Is. 8

Номера страниц: 1079-1085

ISSN журнала: 01730835

Место издания: HOBOKEN

Издатель: WILEY

Авторы

  • Sursyakova Viktoria V. (Russian Acad Sci, Inst Chem & Chem Technol, Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, Siberian Branch, Akademgorodok 50-24, Krasnoyarsk 660036, Russia)
  • Rubaylo Anatoly I. (Russian Acad Sci, Inst Chem & Chem Technol, Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, Siberian Branch, Akademgorodok 50-24, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk, Russia; Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk, Russia)

Вхождение в базы данных

Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.

Вы можете отметить интересные фрагменты текста, которые будут доступны по уникальной ссылке в адресной строке браузера.