Collect. Czech. Chem. Commun.
1980, 45, 2895-2902
https://doi.org/10.1135/cccc19802895
Fourier components analysis of internal rotation in carbofunctional derivatives of group iv b elements
Robert Ponec, Luboš Dejmek and Václav Chvalovský
Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol
Individual author index pages
Other CCCC articles of these authors
- Robert Ponec*, Stijn Fias, Sofie Van Damme, Patrick Bultinck, Ivan Gutman and Sonja Stanković
The close relation between cyclic delocalization, energy effects of cycles and aromaticity
2009, Vol. 74, Issue 1, pp. 147–166 [Abstract] - Robert Ponec
Molecular Basis of LFER. Simple Model for the Estimation of Brønsted Exponent in Acid-Base Catalysis
2004, Vol. 69, Issue 12, pp. 2121–2133 [Abstract] - Jiří Bielavský, Jiří Kassa, Iva Elsnerová and Luboš Dejmek
Cholinesterase Reactivators Derived from Pyridine-2-carbaldoxime
1998, Vol. 63, Issue 2, pp. 199–204 [Abstract] - Robert Ponec
Electron Reorganization in Chemical Reactions. Bond Order Conservation vs Multicenter Bonding in the Course of Chemical Reactions
1997, Vol. 62, Issue 12, pp. 1821–1831 [Abstract] - Robert Ponec and Filip Uhlík
Electron Pairing and Chemical Bonds. Physical Meaning of Effective Pairs
1994, Vol. 59, Issue 12, pp. 2567–2578 [Abstract] - Robert Ponec
Electron Pairing and Chemical Bonds
1994, Vol. 59, Issue 3, pp. 505–516 [Abstract] - Robert Ponec and Martin Strnad
The Least Motion Principle, Concertedness and the Mechanisms of Pericyclic Reactions. A Similarity Approach
1994, Vol. 59, Issue 1, pp. 75–88 [Abstract] - Robert Ponec and Martin Strnad
Topological Aspects of Chemical Reactivity. Electron Correlation in the Course of Chemical Reactions
1993, Vol. 58, Issue 8, pp. 1751–1760 [Abstract] - Robert Ponec
Similarity Approach to Chemical Reactivity. Substituent Effect in Pericyclic Reactions
1993, Vol. 58, Issue 1, pp. 11–23 [Abstract] - Robert Ponec and Martin Strnad
Chemical Bonds and Their Transformations in the Course of Chemical Reactions
1992, Vol. 57, Issue 6, pp. 1177–1185 [Abstract] - Martin Strnad and Robert Ponec
Geodesic Formulation of the Least Motion Principle in Chemical Reactivity
1992, Vol. 57, Issue 2, pp. 232–240 [Abstract] - Robert Ponec and Martin Strnad
Similarity approach to chemical reactivity. Specificity of multibond processes
1990, Vol. 55, Issue 11, pp. 2583–2589 [Abstract] - Robert Ponec and Martin Strnad
Topological aspects of chemical reactivity. On physical meaning of the similarity index
1990, Vol. 55, Issue 10, pp. 2363–2367 [Abstract] - Jan Schraml, Robert Brežný, Jan Čermák and Václav Chvalovský
29Si and 13C NMR spectra of some substituted bis(trimethylsiloxy)benzenes
1990, Vol. 55, Issue 8, pp. 2033–2037 [Abstract] - Jan Schraml, Václav Chvalovský, Harald Jancke, Peter Koehler, Mikhail F. Larin, Vadim A. Pestunovich and Mikhail G. Voronkov
Proximity effects in 29Si, 13C, and 1H NMR spectra of ortho substituted phenoxytrimethylsilanes
1990, Vol. 55, Issue 8, pp. 2019–2026 [Abstract] - Robert Ponec and Martin Strnad
A novel approach to the characterization of molecular similarity. The 2nd order similarity index
1990, Vol. 55, Issue 4, pp. 896–902 [Abstract] - Robert Ponec and Martin Strnad
Topological aspects of chemical reactivity. Relation between the overlap determinant method and the least motion principle
1990, Vol. 55, Issue 3, pp. 622–629 [Abstract] - Robert Ponec and Milan Hájek
Influence of the solvent on the transmission of polar effects in free radical reactions. A theoretical study
1988, Vol. 53, Issue 11, pp. 2714–2721 [Abstract] - Jan Čermák, Vratislav Blechta and Václav Chvalovský
Cooligomerization of propadiene with propyne catalysed by nickel(0) complexes
1988, Vol. 53, Issue 6, pp. 1274–1286 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Valency changes in the course of chemical reactions
1987, Vol. 52, Issue 11, pp. 2603–2612 [Abstract] - Jan Schraml, Eva Petráková, Ján Hirsch, Jan Čermák, Václav Chvalovský, Raivo Teeaar and Endel Lippmaa
13C MAS NMR and 1H-29Si and 1H-13C heteronuclear correlation study of model xylooligosaccharides
1987, Vol. 52, Issue 10, pp. 2460–2473 [Abstract] - Eva Petráková, Jan Schraml, Ján Hirsch, Magdalena Kvíčalová, Jan Zelený and Václav Chvalovský
Analysis of oligosaccharides. 29Si and 13C NMR spectra of pertrimethylsilylated oligosaccharides derived from xylopyranose
1987, Vol. 52, Issue 6, pp. 1501–1513 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. On the possible use of similarity index in characterizing the transition state structure in concerted pericyclic reactions
1987, Vol. 52, Issue 6, pp. 1375–1385 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. On the similarity of molecular structures
1987, Vol. 52, Issue 3, pp. 555–562 [Abstract] - Robert Ponec, Štěpán Krupička and Milan Hájek
MO analysis of chemically interacting systems. Reaction of hydrogen abstraction by free radicals
1987, Vol. 52, Issue 3, pp. 547–554 [Abstract] - Antonín Lyčka, Jaroslav Holeček, Karel Handlíř, Josef Pola and Václav Chvalovský
17O, 13C, and 29Si NMR spectra of some acyloxy- and diacetoxysilanes and acetoxygermanes
1986, Vol. 51, Issue 11, pp. 2582–2589 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Catalytic reactions
1986, Vol. 51, Issue 9, pp. 1843–1855 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Correlation diagrams and overlap determinant method
1986, Vol. 51, Issue 9, pp. 1834–1842 [Abstract] - Petr Duchek, Robert Ponec and Václav Chvalovský
Influence of solvents on electrochemical reduction potentials of chlorosilanes
1986, Vol. 51, Issue 5, pp. 967–972 [Abstract] - Jaroslav Včelák, Miroslava Klímová and Václav Chvalovský
Catalysed liquid phase oxidation of acetals by molecular oxygen
1986, Vol. 51, Issue 4, pp. 847–866 [Abstract] - Vladimír Morávek and Robert Ponec
Possible role of nonclassical ions in acid catalysed dehydration of ethanol
1986, Vol. 51, Issue 4, pp. 842–846 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. A simple method for estimating the activation energies in pericyclic reactions
1986, Vol. 51, Issue 1, pp. 175–187 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Simple alternative method for determining parity of Kékule structures
1985, Vol. 50, Issue 12, pp. 2639–2646 [Abstract] - Josef Pola and Václav Chvalovský
cw CO2 laser powered pyrolysis of methane
1985, Vol. 50, Issue 7, pp. 1543–1547 [Abstract] - Jan Schraml, Štefan Kučár, Jan Zelený and Václav Chvalovský
29Si (and 13C) NMR spectra of all pertrimethylsilylated O-acetyl and O-benzoyl 1,6-anhydro-β-D-glucopyranose derivatives. A test of empirical assignment rules
1985, Vol. 50, Issue 5, pp. 1176–1183 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Reorganisation of electron density in allowed and forbidden reactions
1985, Vol. 50, Issue 5, pp. 1121–1132 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Theoretical justification of overlap determinant method
1985, Vol. 50, Issue 3, pp. 577–580 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity. Photochemical and free radical reactions
1985, Vol. 50, Issue 3, pp. 559–576 [Abstract] - Josef Pola and Václav Chvalovský
Laser driven pyrolysis of n-alkanes
1985, Vol. 50, Issue 1, pp. 223–227 [Abstract] - Robert Ponec
Topological aspects of chemical reactivity
1984, Vol. 49, Issue 2, pp. 455–473 [Abstract] - Jan Schraml, Micheline Grignon-dubois, Jacques Dunoguès, Harald Jancke, Günter Engelhardt and Václav Chvalovský
NMR spectra (13C and 29Si) as a probe into the electronic structure of cyclopropylsilanes
1983, Vol. 48, Issue 12, pp. 3396–3401 [Abstract] - Jan Schraml, Jaroslav Včelák, Miloslav Černý and Václav Chvalovský
29Si NMR chemical shifts in pertrimethylsilylated 1,6-anhydro-β-D-glucopyranose derivatives. Empirical assignment from Hammett type dependence of the chemical shifts
1983, Vol. 48, Issue 9, pp. 2503–2508 [Abstract] - Robert Ponec, Milan Hájek and Jaroslav Málek
PMO treatment of structure-reactivity relationships. Polar effects in the free radical addition reactions
1983, Vol. 48, Issue 9, pp. 2469–2472 [Abstract] - Jan Schraml, Eva Petráková, Otomar Pihar, Ján Hirsch and Václav Chvalovský
Pertrimethylsilylation as a method for improvement of chemical shift additivity through conformational homogenization. 1H and 13C NMR spectra of pertrimethylsilylated derivatives of methyl β-D-xylopyranosides
1983, Vol. 48, Issue 7, pp. 1829–1841 [Abstract] - Robert Ponec, Jan Kučera and Václav Chvalovský
Basicity of carbonfunctional organosilicon compounds and mechanism of the α effect
1983, Vol. 48, Issue 6, pp. 1602–1607 [Abstract] - Robert Ponec
On separation of inductive and resonance effect
1983, Vol. 48, Issue 6, pp. 1564–1570 [Abstract] - Robert Ponec
Interpretation of a molecular wave function in terms of individual structures
1983, Vol. 48, Issue 1, pp. 34–40 [Abstract] - Robert Ponec
On definition of electronegativity within the framework of MO methods
1982, Vol. 47, Issue 5, pp. 1479–1485 [Abstract] - Lubomír Nondek, Dana Žďárová, Jaroslav Málek and Václav Chvalovský
Conversion of 2,3:4,6-di-O-isopropylidene-L-sorbose to 2,3:4,6-di-O-isopropylidene-2-keto-L-gulonic acid by catalytic oxidation with oxygen on platinum
1982, Vol. 47, Issue 4, pp. 1121–1129 [Abstract] - Robert Ponec and Jaroslav Málek
The reliability of MINDO method for characterizing the transition state structures in radical addition reactions
1982, Vol. 47, Issue 3, pp. 802–808 [Abstract] - Josef Pola and Václav Chvalovský
Electronic effect of and mutual polarizability in groups attached to oxygen via their C, Si, Ge, and B atoms
1982, Vol. 47, Issue 2, pp. 613–616 [Abstract] - Josef Pola, John M. Bellama and Václav Chvalovský
A comparative study of the SF6-sensitized interaction of a cw-CO2 laser radiation with methyltrichloro derivatives of carbon, silicon and germanium
1981, Vol. 46, Issue 12, pp. 3088–3096 [Abstract] - Seán Cawley, Jan Schraml, Petr Svoboda, Robert Ponec and Václav Chvalovský
1H NMR spectra of some chloro-alkenes
1981, Vol. 46, Issue 11, pp. 2924–2934 [Abstract] - Robert Ponec, Luboš Dejmek and Václav Chvalovský
Hyperconjugation in organosilicon chemistry
1981, Vol. 46, Issue 11, pp. 2663–2668 [Abstract] - Robert Ponec, Milan Hájek and Jaroslav Málek
PMO-treatment of the structure-reactivity relationships in free radical addition reactions of cycloalkenes
1981, Vol. 46, Issue 10, pp. 2524–2530 [Abstract] - Jan Schraml, Václav Chvalovský, Märt Mägi and Endel Lippmaa
The role of electronic and steric effects in 29Si-NMR spectra of compounds with Si-O-C group
1981, Vol. 46, Issue 2, pp. 377–390 [Abstract] - Luboš Dejmek, Robert Ponec and Václav Chvalovský
Protonation-induced variability of electronic effects of silyl and germyl substituents in α-carbofunctional derivatives
1980, Vol. 45, Issue 12, pp. 3518–3524 [Abstract] - Luboš Dejmek, Robert Ponec and Václav Chvalovský
Fourier component analysis of internal rotation in β-carbofunctional derivatives of group IVb elements
1980, Vol. 45, Issue 12, pp. 3510–3517 [Abstract] - Gabriela Kuncová and Václav Chvalovský
The effect of solvents on hydrosilylation of phenylalkenes catalysed by [RhCl{P(C6H5)3}3]
1980, Vol. 45, Issue 8, pp. 2240–2246 [Abstract] - Gabriela Kuncová and Václav Chvalovský
Steric effects in hydrosilylation of styrene
1980, Vol. 45, Issue 7, pp. 2085–2099 [Abstract] - Robert Ponec
Perturbation theory of substituent effect. Quantum chemical study of the positive bridging effect
1980, Vol. 45, Issue 7, pp. 2054–2062 [Abstract] - Robert Ponec
Perturbation theory of substituent effect. Importance of the field effect in transmission of the substituent effect
1980, Vol. 45, Issue 6, pp. 1655–1661 [Abstract] - Robert Ponec
Perturbation theory of substituent effect. Quantum chemical estimation of the Hammet ρ constants
1980, Vol. 45, Issue 6, pp. 1646–1654 [Abstract] - Josef Pola and Václav Chvalovský
The oxygen basicity strengthening effect in peroxides
1980, Vol. 45, Issue 3, pp. 876–879 [Abstract] - Josef Pola and Václav Chvalovský
The electronic effect of silyl groups in different XYZSi-R systems
1980, Vol. 45, Issue 3, pp. 861–875 [Abstract] - Marie Jakoubková, Zlata Papoušková and Václav Chvalovský
ν(C-F) in some organosilicon compounds
1980, Vol. 45, Issue 3, pp. 854–860 [Abstract] - Robert Ponec and Jaroslav Málek
Mechanistic aspects of chain initiation in radical addition reactions induced by metal ions
1980, Vol. 45, Issue 1, pp. 231–237 [Abstract] - Josef Pola, Marie Jakoubková and Václav Chvalovský
The electronic effects in and the oxygen basicity of some oxygen-containing boranes
1979, Vol. 44, Issue 12, pp. 3688–3694 [Abstract] - Zlata Papoušková, Vlasta Fialová and Václav Chvalovský
The effect of solvation by acetone on the basicity of silylalkylamines
1979, Vol. 44, Issue 9, pp. 2828–2831 [Abstract] - Robert Ponec, Luboš Dejmek and Václav Chvalovský
Fourier component analysis of intramolecular interactions in α-carbofunctional silanes
1979, Vol. 44, Issue 5, pp. 1434–1439 [Abstract] - Jan Schraml, Václav Chvalovský, Märt Mägi and Endel Lippmaa
Silicon-29 and carbon-13 NMR spectra of model alkylsilanes of the type (CH3)3-nXnSi(CH2)mH
1979, Vol. 44, Issue 3, pp. 854–865 [Abstract] - Josef Pola, Marie Jakoubková and Václav Chvalovský
The effects controlling the oxygen basicity in alkoxysilanes (RO)nSi(CH3)4-n. The mutual polarizability effect of alkoxy groups attached to silicon
1979, Vol. 44, Issue 3, pp. 750–755 [Abstract] - Michail G. Voronkov, Václav Chvalovský, Svetlana V. Kirpichenko, Natalia N. Vlasova, Sergei T. Bolshakov, Gabriela Kuncová, Vladimir V. Keiko and Elena O. Tsetlina
Hydrosilylation of dialkenyl sulphides
1979, Vol. 44, Issue 3, pp. 742–749 [Abstract] - Josef Pola, Marie Jakoubková and Václav Chvalovský
The extent of some intramolecular effects in triethoxy- and trimethoxysilanes
1978, Vol. 43, Issue 12, pp. 3391–3395 [Abstract] - Josef Pola and Václav Chvalovský
The electronic effect of hydrogen in alkoxysilanes HkSi(CH3)1(OCH3)m
1978, Vol. 43, Issue 12, pp. 3385–3390 [Abstract] - Josef Pola and Václav Chvalovský
Variable electronic effect of trimethylsilyl group in trimethylsiloxyalkanes
1978, Vol. 43, Issue 12, pp. 3380–3384 [Abstract] - Josef Pola, Marie Jakoubková and Václav Chvalovský
The oxygen basicity in siloxanes. Variable electronic effect of trimethylsiloxy group
1978, Vol. 43, Issue 12, pp. 3373–3379 [Abstract] - Jan Schraml, Václav Chvalovský, Märt Mägi and Endel Lipmaa
Silicon-29 and carbon-13 NMR spectra of the compounds of the type (CH3)3Si(CH2)mOR
1978, Vol. 43, Issue 12, pp. 3365–3372 [Abstract] - Jan Schraml, Nguyen-Duc Chuy, Petr Novák, Václav Chvalovský, Märt Mägi and Endel Lippmaa
29Si, 17O, 13C, and 1H-NMR spectra of acetoxyalkylsubstituted silanes (CH3)3-nXnSi(CH2)mOC(O3)CH3
1978, Vol. 43, Issue 12, pp. 3202–3209 [Abstract] - Josef Pola and Václav Chvalovský
An intramolecular interaction between halogen and silicon displayed in some physical properties of silylmethyl halides
1978, Vol. 43, Issue 12, pp. 3192–3201 [Abstract] - Jan Schraml, Jaroslav Včelák, Václav Chvalovský, Günter Engelhardt, Harald Jancke, Luděk Vodička and Josef Hlavatý
29Si and 13C-NMR spectra and steric effects in mono- and bis(trimethylsiloxy)adamantanes
1978, Vol. 43, Issue 12, pp. 3179–3191 [Abstract] - Josef Pola, Marie Jakoubková and Václav Chvalovský
The polarizability of some groups attached to oxygen in ethers
1978, Vol. 43, Issue 3, pp. 760–768 [Abstract] - Josef Pola, Marie Jakoubková and Václav Chvalovský
Mutual polarizability effect of some substituents bonded to silicon
1978, Vol. 43, Issue 3, pp. 753–759 [Abstract] - Josef Pola and Václav Chvalovský
Variable electronic effect of silyl groups attached to oxygen
1978, Vol. 43, Issue 3, pp. 746–752 [Abstract]