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Lanthanides as NMR/MRI temperature sensors and probes of moderately fast molecular dynamics in aqueous medium: A dependence of activation energy of racemization in complexes of diethylenetriaminepentaacetat on lanthanide ion Краткое сообщение

Журнал Sensors and Actuators B-chemical
ISSN: 0925-4005 , E-ISSN: 1873-3077
Вых. Данные Год: 2017, Том: 251, Страницы: 108-111 Страниц : 4 DOI: 10.1016/j.snb.2017.05.033
Авторы Babailov Sergey P. 1,2
Организации
1 A.V. Nikolaev Institute of Inorganic Chemistry, The Siberian Branch of the Russian Academy of Sciences, Av. Lavrentyev 3, Novosibirsk, 630090, Russian Federation
2 National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk, 634050, Russian Federation

Реферат: In solution, [Ln(H2O)n(dtpa)]²⁻ chelates undergo a dynamic exchange between two enantiomers. The free energy of activation of intramolecular dynamics (for complexes of Pr to Ho) slightly increases with decreasing radius of the lanthanide cation. According to analysis of the paramagnetic lanthanide induced shifts (LIS) in NMR spectra, the structure of [Ho(H2O)n(dtpa)]²⁻ in solution is similar to the related model found in the crystal state. It was found that complexes [Ln(H2O)n(dtpa)]²⁻ may be used (due to the substantial temperature dependence of LIS) as NMR thermometric sensors for controlling the local temperature in aqueous medium. The investigated coordination compounds are suggested to apply as thermo-sensing contrast reagent for MRI diagnostics of cancer and inflammation.
Библиографическая ссылка: Babailov S.P.
Lanthanides as NMR/MRI temperature sensors and probes of moderately fast molecular dynamics in aqueous medium: A dependence of activation energy of racemization in complexes of diethylenetriaminepentaacetat on lanthanide ion
Sensors and Actuators B-chemical. 2017. V.251. P.108-111. DOI: 10.1016/j.snb.2017.05.033 WOS Scopus РИНЦ OpenAlex
Даты:
Опубликована в печати: 1 апр. 2017 г.
Идентификаторы БД:
Web of science: WOS:000406184600014
Scopus: 2-s2.0-85019498873
РИНЦ: 31043236
OpenAlex: W2613898156
Цитирование в БД:
БД Цитирований
Web of science 22
Scopus 22
РИНЦ 21
OpenAlex 20
Альметрики: