| 000 | 02969nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 655963 | ||
| 005 | 20231030041408.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\22303 | ||
| 090 | _a655963 | ||
| 100 | _a20171016a2017 k y0engy50 ba | ||
| 101 | 1 | _aeng | |
| 102 | _aNL | ||
| 135 | _aarcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aLanthanides 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 _fS. P. Babailov |
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| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: p. 111 (23 tit.)] | ||
| 330 | _aIn 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. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tSensors and Actuators B: Chemical | ||
| 463 |
_tVol. 251 _v[P. 108–111] _d2017 |
||
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _alanthanide complexes | |
| 610 | 1 | _aDTPA | |
| 610 | 1 | _aNMR/MRI temperature sensor | |
| 610 | 1 | _alanthanide-induced shifts in NMR spectra | |
| 610 | 1 | _afree energy of activation | |
| 610 | 1 | _aconformation dynamics | |
| 610 | 1 | _aлантаниды | |
| 610 | 1 | _aдатчики температуры | |
| 610 | 1 | _aсвободная энергия | |
| 610 | 1 | _aмолекулярная динамика | |
| 610 | 1 | _aводные среды | |
| 700 | 1 |
_aBabailov _bS. P. _cchemist _cSenior researcher of Tomsk Polytechnic University _f1960- _gSergey Pavlovich _2stltpush _3(RuTPU)RU\TPU\pers\36566 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра химической технологии редких, рассеянных и радиоактивных элементов (№ 43) (ХТРЭ) _h56 _2stltpush _3(RuTPU)RU\TPU\col\18733 |
| 801 | 2 |
_aRU _b63413507 _c20171016 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1016/j.snb.2017.05.033 | |
| 942 | _cCF | ||