Collect. Czech. Chem. Commun. 2001, 66, 1623-1637
https://doi.org/10.1135/cccc20011623

Resonance Energy in Benzene Derivatives with a Variable Functional Group

Otto Exnera and Stanislav Böhmb,*

a Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic
b Department of Organic Chemistry, Institute of Chemical Technology, Prague, 166 28 Prague 6, Czech Republic

Individual author index pages


Other CCCC articles of these authors

  • Ladislav Janovec, Stanislav Böhm, Ivan Danihel, Ján Imrich*, Pavol Kristian and Karel D. Klika
    Theoretical Confirmation of the Reaction Mechanism Leading to Regioselective Formation of Thiazolidin-4-one from Bromoacetic Acid Derivatives
    2007, Vol. 72, Issue 10, pp. 1435–1445 [Abstract]
  • Stanislav Böhm and Otto Exner*
    Revision of the Dual-Substituent-Parameter Treatment; Reaction Series with a Donor Reaction Centre
    2007, Vol. 72, Issue 8, pp. 1158–1176 [Abstract]
  • Jana Tomaščiková, Ján Imrich*, Ivan Danihel, Stanislav Böhm and Pavol Kristian
    Heterocyclization of (Acridin-9-yl)thiosemicarbazides with Dimethyl Acetylenedicarboxylate
    2007, Vol. 72, Issue 3, pp. 347–362 [Abstract]
  • Otto Exner* and Stanislav Böhm
    Analysis of the Ortho Effect: Basicity of 2-Substituted Benzonitriles
    2006, Vol. 71, Issue 8, pp. 1239–1255 [Abstract]
  • Stanislav Böhm and Otto Exner*
    Estimation of Resonance Energy from Forced Nonplanar Conformations of Conjugated Molecules
    2005, Vol. 70, Issue 10, pp. 1577–1588 [Abstract]
  • Stanislav Böhm and Otto Exner*
    Interaction of Polar Groups with a Bulky Hydrocarbon Residue: Polarizability and Steric Effects
    2005, Vol. 70, Issue 3, pp. 370–382 [Abstract]
  • Stanislav Böhm and Otto Exner*
    Attenuation of the Substituent Effects Along the Aliphatic Chain
    2004, Vol. 69, Issue 5, pp. 984–995 [Abstract]
  • Juraj Bernát, Eva Balentová, Pavol Kristian*, Ján Imrich, Erik Sedlák, Ivan Danihel, Stanislav Böhm, Naďa Prónayová, Kalevi Pihlaja and Karel D. Klika
    Methylation of Acridin-9-ylthioureas. Structure, Fluorescence and Biological Properties of Products
    2004, Vol. 69, Issue 4, pp. 833–849 [Abstract]
  • Pavel Fiedler and Otto Exner*
    Conformation of Aromatic Carbonyl Derivatives: An Infrared Study
    2004, Vol. 69, Issue 4, pp. 797–810 [Abstract]
  • Jan Čejka, Bohumil Kratochvíl, Stanislav Böhm, Ivana Císařová, Ladislav Cvak and Alexandr Jegorov*
    Structural Study of Dopamine Agonist Lisuride
    2003, Vol. 68, Issue 11, pp. 2150–2158 [Abstract]
  • Michal Hušák, Bohumil Kratochvíl, Ivana Císařová, Ladislav Cvak, Alexandr Jegorov* and Stanislav Böhm
    Crystal Forms of Semisynthetic Ergot Alkaloid Terguride
    2002, Vol. 67, Issue 4, pp. 479–489 [Abstract]
  • Drahomír Hnyk*, Václav Všetečka, Ladislav Drož and Otto Exner
    Charge Distribution Within 1,2-Dicarba-closo-dodecaborane: Dipole Moments of Its Phenyl Derivatives
    2001, Vol. 66, Issue 9, pp. 1375–1379 [Abstract]
  • Radek Pohl, Jan Sýkora, Petr Maloň, Stanislav Böhm*, Bohumil Kratochvíl and Josef Kuthan
    Sterically Crowded Heterocycles. XIII. An Insight Into the Absolute Stereochemistry of Atropisomeric (Z)-3-(Imidazo[1,2-a]pyridin-3-yl)prop-2-en-1-ones
    2000, Vol. 65, Issue 10, pp. 1643–1652 [Abstract]
  • Daniel Alexander, Stanislav Böhm, Ivana Císařová, Petr Holý, Jaroslav Podlaha, Miroslav Šlouf and Jiří Závada*
    Sterically Crowded Hexaalkyl Benzene-1,2,3,4,5,6-hexakis[α-(alkoxycarbonyl)propanoates]. Synthesis and Conformation Analysis
    2000, Vol. 65, Issue 5, pp. 673–694 [Abstract]
  • Robert Klvaňa, Radek Pohl, Jan Pawlas, Jan Čejka, Hana Dvořáková, Richard Hrabal, Stanislav Böhm*, Bohumil Kratochvíl and Josef Kuthan
    Sterically Crowded Heterocycles. XII. Atropisomerism of (1-Aryl-3,5-diphenyl-1H-pyrrol-2-yl)(phenyl)methanones
    2000, Vol. 65, Issue 5, pp. 651–666 [Abstract]
  • Ivana Císařová, Jaroslav Podlaha, Stanislav Böhm and Otto Exner*
    Steric Effects and Steric Inhibition of Resonance in Benzene Derivatives: 2,3-Dimethylbenzoic Acid
    2000, Vol. 65, Issue 2, pp. 216–226 [Abstract]
  • Stanislav Böhm*, Radek Pohl and Josef Kuthan
    Sterically Crowded Heterocycles. XI. A Semiempirical Prediction of Enantiomerization Barriers for Substituted (Z)-3-(Imidazo[1,2-a]pyridin-3-yl)-1-phenylprop-2-en-1-ones
    1999, Vol. 64, Issue 11, pp. 1761–1769 [Abstract]
  • Pavel Fiedler, Jiří Kulhánek, Michèle Decouzon, Jean-François Gal, Pierre-Charles Maria and Otto Exner*
    Steric Effects and Steric Inhibition of Resonance in Isopropylbenzoic Acids in the Gas Phase and in Solution
    1999, Vol. 64, Issue 9, pp. 1433–1447 [Abstract]
  • Karel Waisser*, Karel Palát, Jr. and Otto Exner*
    Substituent Effects on Conformational Equilibria: Substituted Thiobenzanilides
    1999, Vol. 64, Issue 8, pp. 1295–1306 [Abstract]
  • Radek Pohl, Stanislav Böhm and Josef Kuthan*
    Sterically Crowded Heterocycles. X. A New Mechanistic Approach to the Ferricyanide Oxidation of 4,6'-Disubstituted 1-(Pyridin-2'-yl)-2,6-diphenylpyridinium Salts
    1999, Vol. 64, Issue 8, pp. 1274–1294 [Abstract]
  • Ivan Danihel, Kalevi Pihlaja, Ján Imrich, Gejza Suchár, Pavol Kristian, Stanislav Böhm and Slávka Hočová
    Configuration and Conformation Study of S-Allyl O-Methyl N-(2- and 4-Substituted Acridin-9-yl)thiocarbonimidates in Relation to Their [3,3] Sigmatropic Rearrangement
    1998, Vol. 63, Issue 3, pp. 387–393 [Abstract]
  • Stanislav Böhm, Tomáš Strnad, Iveta Ruppertová and Josef Kuthan
    Sterically Crowded Heterocycles. IX. New α,β-Unsaturated Ketones Containing Imidazo[1,2-a]quinoline, Imidazo[2,1-a]isoquinoline, Benzo[h]imidazo[1,2-a]quinoline and Imidazo[1,2-a]-1,10-phenanthroline Moieties
    1997, Vol. 62, Issue 10, pp. 1599–1611 [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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • Otto Exner and Miloš Buděšínský
    Carbon-13 Substituent-Induced Chemical Shifts: Monosubstituted Benzene Derivatives
    1992, Vol. 57, Issue 3, pp. 497–507 [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]
  • 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]
  • 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]
  • 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]
  • 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 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]
  • 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]