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Description
| - The isotropic Xe-129 nuclear magnetic resonance (NMR) chemical shift (CS) in Xe@C-60 dissolved in liquid benzene was calculated by piecewise approximation to faithfully simulate the experimental conditions and to evaluate the role of different physical factors influencing the Xe-129 NMR CS. The Xe-129 shielding constant was obtained by averaging the Xe-129 nuclear magnetic shieldings calculated for snapshots obtained from the molecular dynamics trajectory of the Xe@C-60 system embedded in a periodic box of benzene molecules. Relativistic corrections were added at the Breit-Pauli perturbation theory (BPPT) level, included the solvent, and were dynamically averaged. It is demonstrated that the contribution of internal dynamics of the Xe@C-60 system represents about 8% of the total nonrelativistic NMR CS, whereas the effects of dynamical solvent add another 8%. The dynamically averaged relativistic effects contribute by 9% to the total calculated Xe-129 NMR CS. The final theoretical value of 172.7 ppm corresponds well to the experimental Xe-129 CS of 179.2 ppm and lies within the estimated errors of the model. The presented computational protocol serves as a prototype for calculations of Xe-129 NMR parameters in different Xe atom guest-host systems.
- The isotropic Xe-129 nuclear magnetic resonance (NMR) chemical shift (CS) in Xe@C-60 dissolved in liquid benzene was calculated by piecewise approximation to faithfully simulate the experimental conditions and to evaluate the role of different physical factors influencing the Xe-129 NMR CS. The Xe-129 shielding constant was obtained by averaging the Xe-129 nuclear magnetic shieldings calculated for snapshots obtained from the molecular dynamics trajectory of the Xe@C-60 system embedded in a periodic box of benzene molecules. Relativistic corrections were added at the Breit-Pauli perturbation theory (BPPT) level, included the solvent, and were dynamically averaged. It is demonstrated that the contribution of internal dynamics of the Xe@C-60 system represents about 8% of the total nonrelativistic NMR CS, whereas the effects of dynamical solvent add another 8%. The dynamically averaged relativistic effects contribute by 9% to the total calculated Xe-129 NMR CS. The final theoretical value of 172.7 ppm corresponds well to the experimental Xe-129 CS of 179.2 ppm and lies within the estimated errors of the model. The presented computational protocol serves as a prototype for calculations of Xe-129 NMR parameters in different Xe atom guest-host systems. (en)
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Title
| - Xe-129 NMR chemical shift in Xe@C-60 calculated at experimental conditions: Essential role of the relativity, dynamics, and explicit solvent
- Xe-129 NMR chemical shift in Xe@C-60 calculated at experimental conditions: Essential role of the relativity, dynamics, and explicit solvent (en)
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skos:prefLabel
| - Xe-129 NMR chemical shift in Xe@C-60 calculated at experimental conditions: Essential role of the relativity, dynamics, and explicit solvent
- Xe-129 NMR chemical shift in Xe@C-60 calculated at experimental conditions: Essential role of the relativity, dynamics, and explicit solvent (en)
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skos:notation
| - RIV/61388963:_____/13:00394735!RIV14-GA0-61388963
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - I, P(GA13-03978S), P(GA203/09/2037)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388963:_____/13:00394735
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Xe-129 NMR; Xe@C-60; dynamical averaging; explicit solvent; relativistic effects (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Computational Chemistry
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Straka, Michal
- Marek, R.
- Standara, Stanislav
- Kulhánek, P.
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
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