Attributes | Values |
---|
rdf:type
| |
Description
| - Several possible scales of steric effects of the alkyl groups were suggested on the basis of isodesmic model reactions, in which a sterically crowded compound is formally synthesized from simpler derivatives. The reaction energies were calculated within the framework of the density functional theory at the level B3LYP/6-311+G(d.p)//B3LYP/6-311+G(d.p) for 6 model systems and 7 various alkyl groups. The most important systems were cis-1,2-dialkylcyclopropanes 1 synthesized from two mono derivatives and sterically crowded derivatives of bicyclo[2.2.2]octane 2 with C3 symmetry. The scales of steric effects evaluated from the two models were rather different: the first scale depended in effect only on the C atoms in the and positions and the effects were almost equal for all primary alkyls. The second scale depended also on the position and the effect of the CH2-t-Bu group was much greater than that of the ethyl group. Any relationship between various systems was found rarely, only in the case of very s
- Several possible scales of steric effects of the alkyl groups were suggested on the basis of isodesmic model reactions, in which a sterically crowded compound is formally synthesized from simpler derivatives. The reaction energies were calculated within the framework of the density functional theory at the level B3LYP/6-311+G(d.p)//B3LYP/6-311+G(d.p) for 6 model systems and 7 various alkyl groups. The most important systems were cis-1,2-dialkylcyclopropanes 1 synthesized from two mono derivatives and sterically crowded derivatives of bicyclo[2.2.2]octane 2 with C3 symmetry. The scales of steric effects evaluated from the two models were rather different: the first scale depended in effect only on the C atoms in the and positions and the effects were almost equal for all primary alkyls. The second scale depended also on the position and the effect of the CH2-t-Bu group was much greater than that of the ethyl group. Any relationship between various systems was found rarely, only in the case of very s (en)
- Several possible scales of steric effects of the alkyl groups were suggested on the basis of isodesmic model reactions, in which a sterically crowded compound is formally synthesized from simpler derivatives. The reaction energies were calculated within the framework of the density functional theory at the level B3LYP/6-311+G(d.p)//B3LYP/6-311+G(d.p) for 6 model systems and 7 various alkyl groups. The most important systems were cis-1,2-dialkylcyclopropanes 1 synthesized from two mono derivatives and sterically crowded derivatives of bicyclo[2.2.2]octane 2 with C3 symmetry. The scales of steric effects evaluated from the two models were rather different: the first scale depended in effect only on the C atoms in the and positions and the effects were almost equal for all primary alkyls. The second scale depended also on the position and the effect of the CH2-t-Bu group was much greater than that of the ethyl group. Any relationship between various systems was found rarely, only in the case of very s (cs)
|
Title
| - Steric effects of the alkyl groups: evaluation on isolated molecules by means of isodesmic reactions
- Steric effects of the alkyl groups: evaluation on isolated molecules by means of isodesmic reactions (en)
- Steric effects of the alkyl groups: evaluation on isolated molecules by means of isodesmic reactions (cs)
|
skos:prefLabel
| - Steric effects of the alkyl groups: evaluation on isolated molecules by means of isodesmic reactions
- Steric effects of the alkyl groups: evaluation on isolated molecules by means of isodesmic reactions (en)
- Steric effects of the alkyl groups: evaluation on isolated molecules by means of isodesmic reactions (cs)
|
skos:notation
| - RIV/60461373:22340/07:00019335!RIV08-MSM-22340___
|
http://linked.open.../vavai/riv/strany
| |
http://linked.open...avai/riv/aktivita
| |
http://linked.open...avai/riv/aktivity
| |
http://linked.open...iv/cisloPeriodika
| |
http://linked.open...vai/riv/dodaniDat
| |
http://linked.open...aciTvurceVysledku
| |
http://linked.open.../riv/druhVysledku
| |
http://linked.open...iv/duvernostUdaju
| |
http://linked.open...titaPredkladatele
| |
http://linked.open...dnocenehoVysledku
| |
http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22340/07:00019335
|
http://linked.open...riv/jazykVysledku
| |
http://linked.open.../riv/klicovaSlova
| - steric effects; isodesmic model reactions; DFT; cis-1; 2-dialkylcyclopropanes (en)
|
http://linked.open.../riv/klicoveSlovo
| |
http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
|
http://linked.open...ontrolniKodProRIV
| |
http://linked.open...i/riv/nazevZdroje
| - Organic and Biomolecular Chemistry
|
http://linked.open...in/vavai/riv/obor
| |
http://linked.open...ichTvurcuVysledku
| |
http://linked.open...cetTvurcuVysledku
| |
http://linked.open...UplatneniVysledku
| |
http://linked.open...v/svazekPeriodika
| |
http://linked.open...iv/tvurceVysledku
| - Böhm, Stanislav
- Exner, Otto
|
http://linked.open...n/vavai/riv/zamer
| |
issn
| |
number of pages
| |
http://localhost/t...ganizacniJednotka
| |