Collect. Czech. Chem. Commun. 2000, 65, 216-226
https://doi.org/10.1135/cccc20000216

Steric Effects and Steric Inhibition of Resonance in Benzene Derivatives: 2,3-Dimethylbenzoic Acid

Ivana Císařováa, Jaroslav Podlahaa, Stanislav Böhmb and Otto Exnerc,*

a Department of Inorganic Chemistry, Charles University, 128 40 Prague 2, Czech Republic
b Department of Organic Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6, Czech Republic
c Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic

Individual author index pages


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    1997, Vol. 62, Issue 10, pp. 1577–1584 [Abstract]
  • Jörg Hiller, Ulf Thewalt, Jaroslav Podlaha, Vladimír Hanuš and Karel Mach
    Synthesis and Crystal Structures of Dimeric Titanium(II) Bis(trimethylsilyl)acetylene Complexes [(C5H5-nMen)Ti(η2-Me3SiC≡CSiMe3)(μ-Cl)]2(n = 3-5)
    1997, Vol. 62, Issue 10, pp. 1551–1561 [Abstract]
  • Jaroslav Podlaha, Petr Štěpnička, Róbert Gyepes, Vladimír Mareček, Alexander Lhotský, Miroslav Polášek, Jiří Kubišta and Martin Nejezchleba
    Hydrophobic Ferrocene Derivatives as Potential Standards in Electrochemistry
    1997, Vol. 62, Issue 2, pp. 185–198 [Abstract]
  • Jaromír Plešek, Stanislav Heřmánek, Andreas Franken, Ivana Císařová and Christiane Nachtigal
    Dimethyl Sulfate Induced Nucleophilic Substitution of the [Bis(1,2-dicarbollido)-3-cobalt(1-)]ate Ion. Syntheses, Properties and Structures of Its 8,8'-μ-Sulfato, 8-Phenyland 8-Dioxane Derivatives
    1997, Vol. 62, Issue 1, pp. 47–56 [Abstract]
  • Ivan Danihel, Gejza Suchár, Pavol Kristian and Stanislav Böhm
    Dipole Moments of 2- and 4-Substituted 9-Isothiocyanatoacridines
    1996, Vol. 61, Issue 11, pp. 1615–1619 [Abstract]
  • Richard Kubík, Stanislav Böhm, Jan Čejka, Vladimír Havlíček, Tomáš Strnad, Bohumil Kratochvíl and Josef Kuthan
    Sterically Crowded Heterocycles. VIII. Preparative Photoisomerization of Some Imidazo[1,2-a]pyridines
    1996, Vol. 61, Issue 10, pp. 1473–1488 [Abstract]
  • Petr Štěpnička and Ivana Císařová
    Crystal Structure of Dibromo(η4-1,5-cyclooctadiene)palladium(II)
    1996, Vol. 61, Issue 9, pp. 1335–1341 [Abstract]
  • Pavel Vojtíšek and Ivana Císařová
    Complexes of Tris(N-piperidinomethyl)phosphine Oxide with Zinc and Cadmium
    1996, Vol. 61, Issue 9, pp. 1321–1334 [Abstract]
  • Michal Horáček, Róbert Gyepes, Ivana Císařová, Miroslav Polášek, Vojtech Varga and Karel Mach
    Syntheses and Crystal Structures of Bis[(trimethylsilyl)tetramethylcyclopentadienyl]titanium Dichloride and Monochloride
    1996, Vol. 61, Issue 9, pp. 1307–1320 [Abstract]
  • Zdeněk Mička, Lucie Prokopová, Ivana Císařová and David Havlíček
    Crystal Structure, Thermoanalytical Properties and Infrared Spectra of Double Magnesium Selenates
    1996, Vol. 61, Issue 9, pp. 1295–1306 [Abstract]
  • Richard Kubík, Stanislav Böhm and Josef Kuthan
    Sterically Crowded Heterocycles. VII. Reduction of Some (Z)-1,3-Diphenyl-3-(2-phenylimidazo[1,2-a]pyridin-3-yl)prop-2-en-1-ones as Their Axial Chirality Probe
    1996, Vol. 61, Issue 7, pp. 1018–1026 [Abstract]
  • Jiří Vohlídal, Jaromír Plešek, Jan Sedláček, Ivana Císařová, Pavel Matějka and Stanislav Heřmánek
    Cobaltacarboranylacetylene 8,8'-(μ-CHC-CH2S)-(1,2-C2B9H10)2-3-Co(III): Synthesis, Characterization and Polymerization of New Substituted Acetylene
    1996, Vol. 61, Issue 6, pp. 877–887 [Abstract]
  • Václav Všetečka, Ivana Císařová and Jaroslav Podlaha
    Conformation of Methylsulfonyl Group: A Comparison of the Data for 2-Chlorophenyl Methyl Sulfone in Solution and in Crystal
    1996, Vol. 61, Issue 5, pp. 733–741 [Abstract]
  • Jaroslav Podlaha, Ivana Císařová, Martin Bělohradský and Jiří Závada
    Crystal and Molecular Structure of cis-2,2',3',2"-Tetraacetoxy-1,1':4',1"-ternaphthyl
    1996, Vol. 61, Issue 5, pp. 726–732 [Abstract]
  • Stanislav Böhm, Iveta Ruppertová, Vladimír Havlíček and Josef Kuthan
    On Some 2,4,6-Triphenylpyridinium 2-Benzimidazolate Inner Salts
    1996, Vol. 61, Issue 4, pp. 597–604 [Abstract]
  • Roman Řeřicha, Ivana Císařová and Jaroslav Podlaha
    Crystal and Molecular Structure of Lithium Benzohydroxamate-Benzohydroxamic Acid (1 : 1) Adduct
    1996, Vol. 61, Issue 1, pp. 139–146 [Abstract]
  • Richard Kubík, Stanislav Böhm, Iveta Ruppertová and Josef Kuthan
    Sterically Crowded Heterocycles. III. A General Approach to Imidazo[1,2-a]pyridines by Ferricyanide Oxidation of Quaternary Pyridinium Salts
    1996, Vol. 61, Issue 1, pp. 126–138 [Abstract]
  • Stanislav Böhm, Mojmír Adamec, Stanislav Nešpůrek and Josef Kuthan
    Photocolouration of 2,4,4,6-Tetraaryl-4H-pyrans and Their Heteroanalogues: Importance of Hypervalent Photoisomers
    1995, Vol. 60, Issue 10, pp. 1621–1633 [Abstract]
  • Ivana Císařová, Jana Podlahová and Jaroslav Podlaha
    Crystal Structure of the Adduct Hexahydroxotelluric Acid-Disodium Ethylenediaminetetraacetate-Water (1/1/2)
    1995, Vol. 60, Issue 5, pp. 820–828 [Abstract]
  • Stanislav Böhm, Richard Kubík, Martin Hradilek, Jan Němeček, Michal Hušák, Bohumil Kratochvíl and Josef Kuthan
    Sterically Crowded Heterocycles. II. Conformational Structure of 2-Phenyl-3-[(Z)-1,3-diphenyl-3-oxopropenyl]imidazo[1,2-a]pyridine and Related Compounds
    1995, Vol. 60, Issue 1, pp. 115–126 [Abstract]
  • Stanislav Böhm, Richard Kubík, Martin Hradilek, Jan Němeček, Michal Hušák, Svetlana Pakhomova, Jan Ondráček, Bohumil Kratochvíl and Josef Kuthan
    Sterically Crowded Heterocycles. I. Molecular Structure of 3-Chain Substituted 2-Phenylimidazo[1,2-a]pyridinium Salts
    1994, Vol. 59, Issue 12, pp. 2677–2690 [Abstract]
  • Zdeněk Friedl and Stanislav Böhm
    Electrostatic Effects in Ionization Equilibria: An AM1 Study of Reversed Substituent Effect in 5-Fluorobicyclo[3.3.3]undecane-1-carboxylic Acid
    1994, Vol. 59, Issue 7, pp. 1467–1471 [Abstract]
  • Stanislav Böhm, Pavel Šebek, Stanislav Nešpůrek and Josef Kuthan
    Photocolouration of 2,4,4,6-Tetraaryl-4H-thiopyrans: A Semiempirical Quantum Chemical Study
    1994, Vol. 59, Issue 5, pp. 1115–1125 [Abstract]
  • Stanislav Böhm, Michal Hocek, Jan Němeček, Vladimír Havlíček and Josef Kuthan
    Preparation and Spectroscopic Properties of Spirocyclic 1-Methyl-2,4,4,6-tetraaryl-1,4-dihydropyridines
    1994, Vol. 59, Issue 5, pp. 1105–1114 [Abstract]
  • Jaroslav Podlaha and Jana Podlahová
    Crystal Structure of Bis(ethylenediphosphinetetraacetic acid)palladium(II) Bis(dihydrogenethylenediphosphinetetraacetato)palladate(II) Tetrahydrate Hydrobromide (1/1): An Unusual Case of Bromide Uncoordinated to Palladium(II)
    1994, Vol. 59, Issue 2, pp. 359–366 [Abstract]
  • Stanislav Böhm, Michal Hocek, Stanislav Nešpůrek and Josef Kuthan
    Photocolouration of 2,4,4,6-Tetraaryl-1,4-dihydropyridines: A Semiempirical Quantum Chemical Study
    1994, Vol. 59, Issue 2, pp. 262–272 [Abstract]
  • Jiří Novotný, Jaroslav Podlaha and Jiří Klinot
    Crystal Structure and Conformation of Ring A of 2β-Bromo-19β,28-epoxy-18α-oleanan-3-one
    1993, Vol. 58, Issue 11, pp. 2737–2744 [Abstract]
  • Otto Exner, Martin Hradil and Jiří Mollin
    Dissociation of Hydroxamic Acids: Solvent Effects
    1993, Vol. 58, Issue 5, pp. 1109–1121 [Abstract]
  • Pavel Šebek, Petr Sedmera, Stanislav Böhm and Josef Kuthan
    Sigmatropic Isomerization of Tetraphenylcyclopentadienes: Reaction Mechanism and Quantum Chemical Treatment
    1993, Vol. 58, Issue 4, pp. 882–892 [Abstract]
  • Bernard Tinant, Jean-Paul Declercq and Otto Exner
    Deformation of the Adamantane Skeleton by Substitution: Crystal Structure of 1-Methylsulfonyladamantane
    1993, Vol. 58, Issue 2, pp. 373–377 [Abstract]
  • Václav Všetečka, Janusz Oszczapowicz and Otto Exner
    Configuration and Conformation of N,N'-Diarylamidines: A Dipole Moment Study
    1993, Vol. 58, Issue 1, pp. 105–112 [Abstract]
  • Dalimil Dvořák, David Šaman, Zdeněk Arnold, Ivana Císařová and Václav Petříček
    Cycloaddition Reactions of Arylmethylenemalonaldehydes with Olefins
    1992, Vol. 57, Issue 11, pp. 2337–2358 [Abstract]
  • Stanislav Böhm, Richard Kubík, Jan Němeček and Josef Kuthan
    Oxidative and Basic Transformations of Some 1-Heteroaryloligophenylpyridinium Salts. Limitations to the Applicability of Ferricyanide Oxidation
    1992, Vol. 57, Issue 8, pp. 1672–1683 [Abstract]
  • Juraj Bernát, Ladislav Kniežo, Gabriela Birošová, Miloš Buděšínský, Jaroslav Podlaha, Jana Podlahová and Jiří Novotný
    Reactions of PO(NCS)3 with 4-Hydroxy-1,3-dioxanes. Crystal Structure of rel-(2S,4R,5S,6S)-2,6-Diethyl-5-methyl-4-(N'-benzylthioureido)-1,3-dioxane
    1992, Vol. 57, Issue 6, pp. 1299–1313 [Abstract]
  • Otto Exner and Miloš Buděšínský
    Carbon-13 Substituent-Induced Chemical Shifts: Monosubstituted Benzene Derivatives
    1992, Vol. 57, Issue 3, pp. 497–507 [Abstract]
  • Eva Klinotová, Václav Křeček, Jiří Klinot, Miloš Buděšínský, Jaroslav Podlaha, Jana Podlahová and Jiří Ječný
    An unusual reaction of a bridged triterpenoid α-diketone with acetic anhydride
    1991, Vol. 56, Issue 12, pp. 2917–2935 [Abstract]
  • Stanislav Böhm, Richard Kubík, Jiří Novotný, Jan Ondráček, Bohumil Kratochvíl and Josef Kuthan
    Reinvestigation of heterocyclic structures: Oxidation products from 1-substituted 2,4,6-triphenylpyridinium salts
    1991, Vol. 56, Issue 11, pp. 2326–2339 [Abstract]
  • Otto Exner and Miloš Buděšínský*
    Correlation of substituent – inducted chemical shifts of aromatic protons: Substituted benzonitriles and methyl benzoates
    1991, Vol. 56, Issue 11, pp. 2234–2250 [Abstract]
  • Jiří Novotný, Jaroslav Podlaha and Miloslav Černý
    Crystal structure of 1,6-anhydro-1(6)-thio-β-D-glucopyranose S-oxide
    1991, Vol. 56, Issue 10, pp. 2169–2174 [Abstract]
  • Jaroslav Podlaha and Jana Podlahová
    Crystal structure of dicadmium(II) ethylenediphosphinetetraacetate octahydrate
    1991, Vol. 56, Issue 7, pp. 1454–1460 [Abstract]
  • Alexander Kasal, Jaroslav Podlaha and Jaroslav Zajíček
    A-homo-B,19-dinorandrostanes from 6β-methanesulfonyloxy-5-methyl-19-nor-5β-androst-9-ene derivatives
    1991, Vol. 56, Issue 5, pp. 1070–1086 [Abstract]
  • Otto Exner and Ivan Mach
    Polarization and apparent dipole moments of some symmetrical molecules
    1991, Vol. 56, Issue 2, pp. 406–410 [Abstract]
  • Miloš Buděšínský, Dan Johnels, Ulf Edlund and Otto Exner
    Carbon-13 substituent-induced chemical shifts in benzene derivatives: Substituted anilines
    1991, Vol. 56, Issue 2, pp. 368–385 [Abstract]
  • Zdeněk Friedl and Stanislav Böhm
    Electrostatic effects in ionization equilibria: An MNDO study of proton and hydrogen transfer reactions of 4-fluorobutanol
    1990, Vol. 55, Issue 12, pp. 2880–2888 [Abstract]
  • Ladislav Lešetický, Stanislav Smrček, Vladimír Sváta, Jana Podlahová, Jaroslav Podlaha and Ivana Císařová
    The synthesis and X-ray structure of 3,7-diiododibenzosuberone. Synthesis of 3,7-diiodoamitriptyline
    1990, Vol. 55, Issue 11, pp. 2677–2684 [Abstract]
  • Otto Exner
    Studies of association in solution from permitivity measurements: Statistical problems
    1990, Vol. 55, Issue 6, pp. 1435–1456 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    Quantum chemical prediction of 2H-pyran vibration spectrum
    1990, Vol. 55, Issue 1, pp. 10–20 [Abstract]
  • Zdeněk Friedl and Stanislav Böhm
    Electrostatic effects on ionization equilibria: An MNDO study of proton and hydrogen transfer reactions of 4-fluorobutylamine
    1990, Vol. 55, Issue 1, pp. 1–9 [Abstract]
  • Jaroslav Podlaha, Miloš Buděšínský, Jana Podlahová and Jindřich Hašek
    Crystal and solution structure of (E)-1,2-bis(ethylsulphonyl)cyclobutane-1,2-dicarbonitrile
    1989, Vol. 54, Issue 12, pp. 3253–3259 [Abstract]
  • Bernard Tinant, Janine Dupont-Fenfau, Jean-Paul Declercq, Jaroslav Podlaha and Otto Exner
    Configuration on the C=N double bond of monosubstituted amidines and amidoximes
    1989, Vol. 54, Issue 12, pp. 3245–3252 [Abstract]
  • Drahomír Hnyk, Radek Fajgar, Václav Všetečka and Otto Exner
    Dipole moments and conformation of some olefinic and ortho-substituted aromatic methoxy derivatives
    1989, Vol. 54, Issue 5, pp. 1291–1298 [Abstract]
  • Jaroslav Podlaha, Jana Podlahová and Jindřich Hašek
    Crystal structure of (E)-1,2-bis(butylsulfonyl)ethylene
    1989, Vol. 54, Issue 5, pp. 1257–1262 [Abstract]
  • Jiří Krechl, Stanislav Böhm and Josef Kuthan
    Electronic spectral properties of redox coenzyme pyrroloquinoline quinone: A CNDO-CI study
    1989, Vol. 54, Issue 5, pp. 1203–1208 [Abstract]
  • Jiří Klinot, Jaroslav Podlaha, Jana Podlahová, Stanislav Hilgard and Eva Klinotová
    Conformation of ring A of 19β,28-epoxy-18α-oleanan-3-one in solution and in the solid state. Crystal structure and carbon-deuterium stretching frequencies
    1989, Vol. 54, Issue 3, pp. 737–750 [Abstract]
  • Jiří Klinot, Jaroslav Podlaha, Jana Podlahová, Karel Malý and Václav Petříček
    Conformation of ring A in 3-oxotriterpenoids. sofa conformation in 3-oxolupane-28-nitrile crystal
    1989, Vol. 54, Issue 3, pp. 725–736 [Abstract]
  • Jiří Krechl, Stanislav Böhm, Svatava Smrčková and Josef Kuthan
    Simple amidinium carboxylates - An MO treatment of molecular geometry and electronic structure
    1989, Vol. 54, Issue 3, pp. 673–683 [Abstract]
  • Stanislav Böhm, Hanuš Slavík and Josef Kuthan
    Ferricyanide oxidation of 1-substituted pentaphenylpyridinium salts. A novel route to 1-substituted 2,3,4,5-tetraphenylpyrroles
    1989, Vol. 54, Issue 1, pp. 200–205 [Abstract]
  • Otto Exner, Václav Jehlička and Bernard Tinant
    Conformations of molecules bearing two carbonyl groups on adjacent atoms
    1988, Vol. 53, Issue 6, pp. 1260–1267 [Abstract]
  • Otto Exner and Václav Jehlička
    Conjugation within the oximino group: A semiquantitative estimation
    1988, Vol. 53, Issue 5, pp. 1018–1032 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    The preparation and characterization of 2-propylphosphinediacetic acid
    1988, Vol. 53, Issue 5, pp. 995–998 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    A contribution to gas phase ionization of para-hydroxybenzoic acid: An LCAO-MO-SCF treatment
    1988, Vol. 53, Issue 4, pp. 665–670 [Abstract]
  • Bernard Tinant, Jean-Paul Declercq, Maurice Van Meerssche and Otto Exner
    Structure of 5-nitro-2-methylbenzoic acid: ortho Effect of the methyl group
    1988, Vol. 53, Issue 2, pp. 301–307 [Abstract]
  • Ivan Danihel, Pavol Kristian, Stanislav Böhm and Josef Kuthan
    A study of structure of meta and para substituted phenyl and benzoyl isothiocyanates by the MNDO method
    1987, Vol. 52, Issue 9, pp. 2115–2124 [Abstract]
  • Jiří Brynda, Bohumil Kratochvíl and Ivana Císařová
    The determination of crystal structure of chromium(II) phosphite dihydrate, CrHPO3 2 H2O
    1987, Vol. 52, Issue 7, pp. 1742–1747 [Abstract]
  • Stanislav Böhm, Renata Prantová, David Šaman, Petr Trška and Josef Kuthan
    Reaction of some nucleophiles with 2,6-di-tert-butylpyrylium perchlorate
    1987, Vol. 52, Issue 5, pp. 1305–1314 [Abstract]
  • Otto Exner and Pavel Fiedler
    Conformation and electronic structure of aromatic chloroformates
    1987, Vol. 52, Issue 4, pp. 970–979 [Abstract]
  • Zdeněk Friedl, Stanislav Böhm, Igor Goljer, Anna Piklerová, Daniela Poórová, Anna Ríčková and Jaroslav Kováč
    Polar effects on 13C NMR chemical shifts and rotational barriers of amides. A dual substituent parameters analysis of N,N-dimethyl-3-(5-substituted-2-furyl)-acrylamides
    1987, Vol. 52, Issue 2, pp. 409–424 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    MO study of 2,2,4-trimethyl-2H-pyran, the simplest stable 2H-pyran derivative
    1987, Vol. 52, Issue 2, pp. 399–408 [Abstract]
  • Otto Exner and Nedelko Motekov
    Dipole moments and conformation of some aromatic benzamidoximes
    1986, Vol. 51, Issue 7, pp. 1444–1449 [Abstract]
  • Otto Exner and Václav Jehlička
    Dipole moments and conformation of α-disulphones. The gauche effect
    1985, Vol. 50, Issue 10, pp. 2245–2251 [Abstract]
  • Štefan Marchalín, Václav Jehlička, Stanislav Böhm, Petr Trška and Josef Kuthan
    Molecular structure of para-substituted 3-aryl-2-arylmethylene-3-oxopropanenitriles in solution phase
    1985, Vol. 50, Issue 9, pp. 1935–1947 [Abstract]
  • Jaroslav Podlaha and Miloš Procházka
    Rhodium(I) catalyzed E/Z isomerization of dimethyl butenedioate
    1985, Vol. 50, Issue 6, pp. 1274–1282 [Abstract]
  • Jana Podlahová, Josef Šilha and Jaroslav Podlaha
    Structure of the complexes of ethylenediphosphinetetraacetic acid in solution
    1985, Vol. 50, Issue 2, pp. 445–453 [Abstract]
  • Juraj Koudelka, David Šaman and Otto Exner
    Secondary steric effects in 2,4,6-trialkylated acetophenones and nitrobenzenes: Dipole moments and 13C NMR spectra
    1985, Vol. 50, Issue 1, pp. 208–214 [Abstract]
  • Otto Exner and Juraj Koudelka
    Principle of additivity of dipole moments: Halogen derivatives of adamantane
    1985, Vol. 50, Issue 1, pp. 200–207 [Abstract]
  • Juraj Koudelka and Otto Exner
    Principle of additivity of dipole moments: 1,3- and 1,3,5-derivatives of benzene
    1985, Vol. 50, Issue 1, pp. 188–199 [Abstract]
  • Zdeněk Friedl, Pavel Fiedler, Ján Biroš, Věra Uchytilová, Igor Tvaroška, Stanislav Böhm and Otto Exner
    Electrostatic effects on conformational equilibria: Solvation enthalpies and the reaction field theory
    1984, Vol. 49, Issue 9, pp. 2050–2069 [Abstract]
  • Karel Kalfus, Zdeněk Friedl and Otto Exner
    Electrostatic effects on ionization equilibria: Solvent dependence
    1984, Vol. 49, Issue 1, pp. 179–189 [Abstract]
  • Otto Exner and Tomáš Juška
    X-ray photoelectron spectroscopic study of sulphonamides: Charge distribution and tautomerism
    1984, Vol. 49, Issue 1, pp. 51–57 [Abstract]
  • Otto Exner, Zdeněk Friedl and Pavel Fiedler
    Electrostatic effects on conformational equilibria: Alkyl 2-cyanobenzoates and 3-cyanopropenoates
    1983, Vol. 48, Issue 11, pp. 3086–3096 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    Oxidation of ethylenediphosphinetetraacetate anions
    1983, Vol. 48, Issue 9, pp. 2604–2608 [Abstract]
  • Evangelia A. Varella, Nicholas E. Alexandrou and Otto Exner
    A mass spectral study of O-aroylbenzohydroximoyl chlorides
    1983, Vol. 48, Issue 9, pp. 2518–2524 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    An ab initio MO study of conformation structure of nicotinamide and its derivatives
    1983, Vol. 48, Issue 7, pp. 1842–1853 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    Hydrolysis of ethylenediphosphinetetraacetate anions
    1983, Vol. 48, Issue 6, pp. 1552–1557 [Abstract]
  • Otto Exner and Václav Jehlička
    Conformation around several equivalent bonds. Polymethoxy derivatives of benzene
    1983, Vol. 48, Issue 4, pp. 1030–1041 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    Optimization of molecular geometry of meta-substituted benzoic acids and their anions by gradient CNDO/2 method
    1983, Vol. 48, Issue 4, pp. 1019–1029 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    MO study of molecular and electronic structure of 2,2-dimethyl-2H-pyran and its acyclic valence isomers
    1983, Vol. 48, Issue 4, pp. 1007–1018 [Abstract]
  • Barbu A. Demian, Otto Exner and Aurora Sallo
    Kinetics and mechanism of the azo coupling reaction of 1-aminonaphthalene-4-sulfonic acid
    1983, Vol. 48, Issue 3, pp. 748–754 [Abstract]
  • Otto Exner, Juraj Koudelka and Soňa Vašíčková
    Dipole moment of the intramolecular hydrogen bond. 2-Nitrophenol and its derivatives
    1983, Vol. 48, Issue 3, pp. 735–747 [Abstract]
  • Evangelia A. Varella, Evangelos D. Micromastoras, Nicholas E. Alexandrou and Otto Exner
    Sythesis and mass spectra of aroylbenzamidoximes
    1983, Vol. 48, Issue 2, pp. 596–607 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    Optimization of molecular geometry of para-substituted benzoic acids and their anions by means of gradient CNDO/2 method
    1982, Vol. 47, Issue 12, pp. 3393–3404 [Abstract]
  • Jiří Krechl, Stanislav Böhm and Josef Kuthan
    Quantum-chemical MO study of protonation of 1-methyl-1,4-dihydronicotinamide
    1982, Vol. 47, Issue 11, pp. 3044–3054 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    ab initio MO-SCF study of prototropic transformations of non-substituted dihydropyridines
    1982, Vol. 47, Issue 10, pp. 2735–2745 [Abstract]
  • Otto Exner, Dario Iarossi and Piero Vivarelli
    Dipole moments induced in larger molecules. Triphenylmethyl derivatives
    1982, Vol. 47, Issue 6, pp. 1733–1737 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    The stability constants of ethylenediphosphinetetraacetate complexes
    1982, Vol. 47, Issue 4, pp. 1078–1085 [Abstract]
  • Otto Exner and Karel Waisser
    Dipole moment and electron distribution of the thioamide group
    1982, Vol. 47, Issue 3, pp. 828–837 [Abstract]
  • Otto Exner and Nedelko Motekov
    Configuration and conformation of amidoximes. N,N-Dialkyl derivatives
    1982, Vol. 47, Issue 3, pp. 814–827 [Abstract]
  • Jaromír Kaválek, Pavel Fiedler, Zlata Papoušková and Otto Exner
    The confirmation of trisubstituted ureas and thioureas in solution
    1982, Vol. 47, Issue 1, pp. 35–44 [Abstract]
  • Otto Exner and Ayfer Bapçum
    Dipole moments induced in larger molecule. Long-chain aliphatic esters
    1982, Vol. 47, Issue 1, pp. 29–34 [Abstract]
  • Jana Podlahová, Bohumil Kratochvíl, Vratislav Langer, Josef Šilha and Jaroslav Podlaha
    The protonation of the ethylenediphosphinetetraacetate anion and the crystal structure of the bis (hydrogen bromide) of ethylenediphosphinetetraacetic acid
    1981, Vol. 46, Issue 12, pp. 3063–3073 [Abstract]
  • Stanislav Böhm and Josef Kuthan
    Comparison of non-empirical and semiempirical SCF MO calculations of non-substituted dihydropyridines
    1981, Vol. 46, Issue 9, pp. 2068–2075 [Abstract]
  • Otto Exner
    A re-examination of the Eötvös equation
    1981, Vol. 46, Issue 8, pp. 1930–1940 [Abstract]
  • Otto Exner
    A comparison of methods for determining dipole moments in solution
    1981, Vol. 46, Issue 4, pp. 1002–1010 [Abstract]
  • Otto Exner and Václav Jehlička
    The conformation of aryl carbonates. A dipole moment study
    1981, Vol. 46, Issue 4, pp. 856–860 [Abstract]
  • Josef Kuthan and Stanislav Böhm
    MO study of molecular and electronic structure of 2H and 4H-pyrans
    1981, Vol. 46, Issue 3, pp. 759–771 [Abstract]
  • Aleksandr I. Artemenko, Inga V. Tikunova, Evgenii K. Anufriev, Václav Jehlička and Otto Exner
    Dipole moments of hydroxamic acids and N,O-diacylhydroxylamines
    1981, Vol. 46, Issue 3, pp. 729–739 [Abstract]
  • Božo Plesničar and Otto Exner
    Dipole moments and conformation of peroxy esters
    1981, Vol. 46, Issue 2, pp. 490–497 [Abstract]
  • Vladimír Hanuš, Milan Hrazdira and Otto Exner
    Pyrazolidine derivatives from the condensation reaction of hydrazobenzene with aliphatic aldehydes
    1980, Vol. 45, Issue 9, pp. 2417–2424 [Abstract]
  • Otto Exner and Zlata Papoušková
    Dipole moment and electron distribution of the amide group
    1980, Vol. 45, Issue 9, pp. 2410–2416 [Abstract]
  • Otto Exner, Václav Jehlička, Luděk Vodička and Pavel Jakoubek
    Dipole moments induced in larger molecules. 1- And 4-substituted diamantanes
    1980, Vol. 45, Issue 9, pp. 2400–2409 [Abstract]
  • Josef Kuthan, Stanislav Böhm and Jiří Mostecký
    Quantum-chemical calculation as an aid in synthesis of prostaglandins, attempt of prediction of relative stability of four stereoisomeric methyl 7-hydroxy-2-oxa-3-oxobicyclo[3.3.0]octane-6-carboxylates
    1980, Vol. 45, Issue 8, pp. 2179–2186 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    Synthesis and characterization of tetrasodium salt of ethylenediphosphinetetraacetic acid, the phosphorus analogue of EDTA
    1980, Vol. 45, Issue 7, pp. 2049–2053 [Abstract]
  • Zdeněk Friedl, Pavel Fiedler and Otto Exner
    Electrostatic effects on conformational equilibria. Solvent dependence
    1980, Vol. 45, Issue 5, pp. 1351–1360 [Abstract]
  • Otto Exner and Pavel Fiedler
    A refined empirical model of the sigma-inductive effect
    1980, Vol. 45, Issue 4, pp. 1251–1268 [Abstract]
  • Vladimír Král, Zdeněk Arnold, Václav Jehlička and Otto Exner
    Quantum chemical study of sulfonium ylides: Structure, charge distribution and dipole moments
    1980, Vol. 45, Issue 4, pp. 1236–1250 [Abstract]
  • Otto Exner
    Substituent effects in electronic spectroscopy: Correlations with Platt spectroscopic moments
    1980, Vol. 45, Issue 3, pp. 843–853 [Abstract]
  • Otto Exner and Jan B. F. N. Engberts
    The gauche effect on conformation. α-Substituted sulfones and N-substituted sulfonamides
    1979, Vol. 44, Issue 11, pp. 3378–3384 [Abstract]
  • Zdeněk Friedl, Jaroslav Hapala and Otto Exner
    Electrostatic effects on ionization equilibria. 3-Substituted bicyclo[2,2,2]octane-1-carboxylic acids
    1979, Vol. 44, Issue 10, pp. 2928–2945 [Abstract]
  • Otto Exner, Jorga Smolíková, Václav Jehlička and Ahmad S. Shawali
    Hydrogen bonding, configuration and conformation of substituted α-oxo oximes and hydrazones
    1979, Vol. 44, Issue 8, pp. 2494–2506 [Abstract]
  • Břetislav Princ and Otto Exner
    Structure reexamination of aliphatic nitrones and their dimers
    1979, Vol. 44, Issue 7, pp. 2221–2229 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    Mercury(II) complexes with phosphineacetic acids
    1979, Vol. 44, Issue 5, pp. 1343–1352 [Abstract]
  • Jiří Mollin, Pavel Fiedler, Václav Jehlička and Otto Exner
    The conformation of substituted hydroxyureas and hydroxythioureas in solution
    1979, Vol. 44, Issue 3, pp. 895–907 [Abstract]
  • Jana Podlahová and Jaroslav Podlaha
    The stability constants of copper(I) phosphineacetates
    1979, Vol. 44, Issue 2, pp. 321–327 [Abstract]
  • Josef Kuthan, Stanislav Böhm and Vratislav Skála
    On applicability of EHT method for study of interactions of pyridinium ions with anions. Calculations of pyridine hydrochloride
    1979, Vol. 44, Issue 1, pp. 99–109 [Abstract]
  • Otto Exner and Zdeněk Friedl
    Electrostatic effects on ionization equilibria. Carboxylic acids and amines derived from 1-indanone
    1978, Vol. 43, Issue 12, pp. 3227–3240 [Abstract]
  • Otto Exner and Božo Plesničar
    Hydrogen bonding and conformation of substituted peroxybenzoic acids as reflected in dipole moment values
    1978, Vol. 43, Issue 11, pp. 3079–3086 [Abstract]
  • Josef Kuthan, Vratislav Skála and Stanislav Böhm
    EHT-study of 1-methylpyridinium fluoride and tetrafluoroborate
    1978, Vol. 43, Issue 11, pp. 3071–3078 [Abstract]
  • Josef Kuthan, Vratislav Skála and Stanislav Böhm
    EHT demonstration of ionic structure of 1-methyl-3-carbamoylpyridinium fluoride and tetrafluoroborate
    1978, Vol. 43, Issue 11, pp. 3056–3063 [Abstract]
  • Otto Exner and Pavel Vetešník
    Substituent efect in electronic spectroscopy: meta- and para-substituted benzonitriles
    1978, Vol. 43, Issue 10, pp. 2763–2778 [Abstract]
  • Božo Plesničar, Jorga Smolíková, Václav Jehlička and Otto Exner
    Dipole moment of the intramolecular hydrogen bond. Substituted α-hydroxyacetophenones
    1978, Vol. 43, Issue 10, pp. 2754–2762 [Abstract]
  • Otto Exner and Nedelko Motekov
    Configuration and conformation of amidoximes. Aromatic derivatives with a free amino group
    1978, Vol. 43, Issue 10, pp. 2740–2753 [Abstract]
  • Zdeněk Friedl and Otto Exner
    Electrostatic effects on conformational equilibria 3-substituted benzonitriles
    1978, Vol. 43, Issue 10, pp. 2591–2599 [Abstract]
  • Vratislav Skála, Stanislav Böhm, Jaroslav Paleček and Josef Kuthan
    Electronic and mass spectra of 2,6-disubstituted phenyl and 2-styryl derivatives of 3,5-dicyanopyridines and their 1,4-dihydroanalogues
    1978, Vol. 43, Issue 2, pp. 434–446 [Abstract]