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; Vol. 251

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; Vol. 251

Bibliographic Details
Parent link:	Sensors and Actuators B: Chemical Vol. 251.— 2017.— [P. 108–111]
Main Author:	Babailov S. P. Sergey Pavlovich
Corporate Author:	Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра химической технологии редких, рассеянных и радиоактивных элементов (№ 43) (ХТРЭ)
Summary:	Title screen 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. Режим доступа: по договору с организацией-держателем ресурса
Language:	English
Published:	2017
Subjects:	труды учёных ТПУ электронный ресурс lanthanide complexes DTPA NMR/MRI temperature sensor lanthanide-induced shifts in NMR spectra free energy of activation conformation dynamics лантаниды датчики температуры свободная энергия молекулярная динамика водные среды
Online Access:	https://doi.org/10.1016/j.snb.2017.05.033
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655963

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