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rdf:type
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Description
| - In this study the hydration of dimethyl sulfoxide was investigated by means of molecular dynamics (MD) simulations and quantum chemical correlated ab initio calculations. MD simulations show the hydration sites when the systems are exposed to 1, 3, 6, 16 and 32 water molecules. Various DMSO...(H2O)n (n=1-3) complexes where waters hydrate sulpho and methyl groups were then re-optimized at the ab initio level. It was shown that the elongation of the S=O bond resulting from hydration represents the dominant feature which triggered the secondary geometrical reorganization and led to the contraction of both the S-C bond as well as the majority of C-H bonds. While the elongation of the S=O bond is accompanied by a red shift of the respective stretch frequency, contraction of C-H bonds gives a blue shift to the C-H stretch frequencies. Blue shifts of the C-H stretch frequencies were also partially explained by the influence of the electrostatic field of hydrating waters.
- In this study the hydration of dimethyl sulfoxide was investigated by means of molecular dynamics (MD) simulations and quantum chemical correlated ab initio calculations. MD simulations show the hydration sites when the systems are exposed to 1, 3, 6, 16 and 32 water molecules. Various DMSO...(H2O)n (n=1-3) complexes where waters hydrate sulpho and methyl groups were then re-optimized at the ab initio level. It was shown that the elongation of the S=O bond resulting from hydration represents the dominant feature which triggered the secondary geometrical reorganization and led to the contraction of both the S-C bond as well as the majority of C-H bonds. While the elongation of the S=O bond is accompanied by a red shift of the respective stretch frequency, contraction of C-H bonds gives a blue shift to the C-H stretch frequencies. Blue shifts of the C-H stretch frequencies were also partially explained by the influence of the electrostatic field of hydrating waters. (en)
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Title
| - Hydration of Sulpho and Methyl Groups in Dimethyl Sulfoxide is Accompanied by Formation of Red-Shifted Hydrogen Bonds and Improper Blue-Shifted Hydrogen Bonds: An ab initio Quantum Chemical Study.
- Hydration of Sulpho and Methyl Groups in Dimethyl Sulfoxide is Accompanied by Formation of Red-Shifted Hydrogen Bonds and Improper Blue-Shifted Hydrogen Bonds: An ab initio Quantum Chemical Study. (en)
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skos:prefLabel
| - Hydration of Sulpho and Methyl Groups in Dimethyl Sulfoxide is Accompanied by Formation of Red-Shifted Hydrogen Bonds and Improper Blue-Shifted Hydrogen Bonds: An ab initio Quantum Chemical Study.
- Hydration of Sulpho and Methyl Groups in Dimethyl Sulfoxide is Accompanied by Formation of Red-Shifted Hydrogen Bonds and Improper Blue-Shifted Hydrogen Bonds: An ab initio Quantum Chemical Study. (en)
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skos:notation
| - RIV/61388955:_____/03:54030028!RIV/2004/AV0/A54004/N
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(LN00A032), Z(AV0Z4040901)
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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/61388955:_____/03:54030028
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - DONOR; fluorobenzene; spectroscopy (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 Physical Chemistry. A
|
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...ocetUcastnikuAkce
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http://linked.open...nichUcastnikuAkce
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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
| - Hobza, Pavel
- Mrázková, Eva
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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