Works matching IS 0018019X AND DT 2001 AND VI 84 AND IP 6

Results: 38

Are the Six-Membered λ5-Phosphorins Aromatic or Ylidic?
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1578, doi. 10.1002/1522-2675(20010613)84:6<1578::AID-HLCA1578>3.0.CO;2-F
By:
- Wang, Zhi-Xiang;
- Schleyer, Paul von Ragué
Publication type:
Article
Avogadro and His Constant.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1314, doi. 10.1002/1522-2675(20010613)84:6<1314::AID-HLCA1314>3.0.CO;2-Q
By:
- Murrell, John N.
Publication type:
Article
Hydrolysis of tRNAPhe on Suspensions of Amino Acids.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1347, doi. 10.1002/1522-2675(20010613)84:6<1347::AID-HLCA1347>3.0.CO;2-2
By:
- Gao, Kui;
- Orgel, Leslie E.
Publication type:
Article
Cycloadditions of `Thiocarbonyl Ylides' with Tetracyanoethylene (=Ethenetetracarbonitrile): Interception of Intermediates.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1805, doi. 10.1002/1522-2675(20010613)84:6<1805::AID-HLCA1805>3.0.CO;2-T
By:
- Huisgen, Rolf;
- Mloston, Grzegorz;
- Langhals, Elke
Publication type:
Article
Dimerization of C60: Symmetry Considerations.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1661, doi. 10.1002/1522-2675(20010613)84:6<1661::AID-HLCA1661>3.0.CO;2-G
By:
- Halevi, Emil Amitai
Publication type:
Article
Molecular Motions in Crystalline Anthracene and Naphthalene from Multitemperature Diffraction Data.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1889, doi. 10.1002/1522-2675(20010613)84:6<1889::AID-HLCA1889>3.0.CO;2-Q
By:
- Bürgi, Hans-Beat;
- Rangavittal, Narayanan;
- Hauser, Jürg
Publication type:
Article
Self-Assembly of Tricuprous Double Helicates: Thermodynamics, Kinetics, and Mechanism.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1694, doi. 10.1002/1522-2675(20010613)84:6<1694::AID-HLCA1694>3.0.CO;2-T
By:
- Fatin-Rouge, Nicolas;
- Blanc, Sylvie;
- Pfeil, Armin;
- Rigault, Annie;
- Albrecht-Gary, Anne-Marie;
- Lehn, Jean-Marie
Publication type:
Article
Single and Double Ionization of Corannulene and Coronene.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1625, doi. 10.1002/1522-2675(20010613)84:6<1625::AID-HLCA1625>3.0.CO;2-0
By:
- Schröder, Detlef;
- Loos, Jessica;
- Schwarz, Helmut;
- Thissen, Roland;
- Preda, Dorin V.;
- Scott, Lawrence T.;
- Caraiman, Doina;
- Frach, Maxim V.;
- Böhme, Diethard K.
Publication type:
Article
Nucleosides, Part LXIV , Base-Labile Protecting Groups for the Oligoribonucleotide Synthesis.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1504, doi. 10.1002/1522-2675(20010613)84:6<1504::AID-HLCA1504>3.0.CO;2-G
By:
- Münch, Ursula;
- Pfleiderer, Wolfgang
Publication type:
Article
Influence of Ring Annelation on the Mode Selectivity of the Ionized Diazabicycloheptenes and Corresponding Housanes: An ESR and ENDOR Study.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1470, doi. 10.1002/1522-2675(20010613)84:6<1470::AID-HLCA1470>3.0.CO;2-W
By:
- Gerson, Fabian;
- Şahin, Coşkun
Publication type:
Article
Photochemical Reaction Mechanisms of 2-Nitrobenzyl Compounds in Solution, I. 2-Nitrotoluene: Thermodynamic and Kinetic Parameters of the aci-Nitro Tautomer.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1441, doi. 10.1002/1522-2675(20010613)84:6<1441::AID-HLCA1441>3.0.CO;2-W
By:
- Schwörer, Markus;
- Wirz, Jakob
Publication type:
Article
Observable Enols of Anhydrides: Claimed Literature Systems, Calculations, and Predictions.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1405, doi. 10.1002/1522-2675(20010613)84:6<1405::AID-HLCA1405>3.0.CO;2-G
By:
- Rappoport, Zvi;
- Lei, Yi Xiong;
- Yamataka, Hiroshi
Publication type:
Article
An Unusual Rearrangement and its Dependence on Configuration.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1342, doi. 10.1002/1522-2675(20010613)84:6<1342::AID-HLCA1342>3.0.CO;2-W
By:
- Zimmerman, Howard E.;
- Wang, Pengfei
Publication type:
Article
Theoretical Study of the Benzene Dimer by the Density-Functional-Theory Formalism Based on Electron-Density Partitioning.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1489, doi. 10.1002/1522-2675(20010613)84:6<1489::AID-HLCA1489>3.0.CO;2-D
By:
- Tran, Fabien;
- Weber, Jacques;
- Wesołowski, Tomasz A.
Publication type:
Article
Foil on Stamps on Foil and on Other Unusual Materials.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1243, doi. 10.1002/1522-2675(20010613)84:6<1243::AID-HLCA1243>3.0.CO;2-W
By:
- Miller, Foil A.
Publication type:
Article
Quantum-Mechanical Energy Calculations in Chemistry.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1328, doi. 10.1002/1522-2675(20010613)84:6<1328::AID-HLCA1328>3.0.CO;2-0
By:
- Šroubková, Libuše;
- Zahradník, Rudolf
Publication type:
Article
Oligosaccharide Analogues of Polysaccharides, Part 22 , Synthesis of Cyclodextrin Analogues Containing a Buta-1,3-diyne-1,4-diyl or a Butane-1,4-diyl Unit.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1862, doi. 10.1002/1522-2675(20010613)84:6<1862::AID-HLCA1862>3.0.CO;2-Z
By:
- Hoffmann, Barbara;
- Zanini, Diana;
- Ripoche, Isabelle;
- Bürli, Roland;
- Vasella, Andrea
Publication type:
Article
Oriented Nonspherical Atoms in Crystals Deduced from X-Ray Scattering Data.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1907, doi. 10.1002/1522-2675(20010613)84:6<1907::AID-HLCA1907>3.0.CO;2-B
By:
- Miller, Lance L.;
- Jacobson, Robert A.;
- Ruedenberg, Klaus;
- Niu, Jier;
- Schwarz, W. H. Eugen
Publication type:
Article
Surprising Formation of Highly Substituted Azulenes on Thermolysis of 4,5,6,7,8-Pentamethyl-2 H-cyclohepta[ b]furan-2-one and Heptalene Formation with the New Azulenes.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1712, doi. 10.1002/1522-2675(20010613)84:6<1712::AID-HLCA1712>3.0.CO;2-E
By:
- Lellek, Vit;
- Hansen, Hans-Jürgen
Publication type:
Article
New Optically Active 2 H-Azirin-3-amines as Synthons for Enantiomerically Pure 2,2-Disubstituted Glycines.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1756, doi. 10.1002/1522-2675(20010613)84:6<1756::AID-HLCA1756>3.0.CO;2-J
By:
- Brun, Kathrin A.;
- Linden, Anthony;
- Heimgartner, Heinz
Publication type:
Article
Pentopyranosyl Oligonucleotide Systems, Communication No. 10 , The α- L-Lyxopyranosyl-(4′→2′)-oligonucleotide System.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1778, doi. 10.1002/1522-2675(20010613)84:6<1778::AID-HLCA1778>3.0.CO;2-3
By:
- Reck, Folkert;
- Wippo, Harald;
- Kudick, René;
- Krishnamurthy, Ramanarayanan;
- Eschenmoser, Albert
Publication type:
Article
Exploiting the Confined Reactivity of C2v-Symmetrical Pentakis-Adducts of [60]Fullerene: Regioselective Formation of Hexakis-, Heptakis-, and Octakis-Adducts with Novel Addition Patterns by Addition of Diazomethane Followed by Dinitrogen Extrusion
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1635, doi. 10.1002/1522-2675(20010613)84:6<1635::AID-HLCA1635>3.0.CO;2-Z
By:
- Haldimann, Richard F.;
- Fokas, Christian;
- Diederich, François
Publication type:
Article
Solid-State Behaviour of the Dichlorobenzenes: Actual, Semi-Virtual and Virtual Crystallography.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1561, doi. 10.1002/1522-2675(20010613)84:6<1561::AID-HLCA1561>3.0.CO;2-M
By:
- Boese, Roland;
- Kirchner, Michael T.;
- Dunitz, Jack D.;
- Filippini, Giuseppe;
- Gavezzotti, Angelo
Publication type:
Article
Secododecahedradienes - Syntheses, Reactivity, in-Plane Homoconjugated 3C/2e Cations, 4C/3e Radical Cations, and σ-Bishomoaromatic 4C/2e Dications?
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1518, doi. 10.1002/1522-2675(20010613)84:6<1518::AID-HLCA1518>3.0.CO;2-R
By:
- Reinbold, Jens;
- Bertau, Martin;
- Voss, Torsten;
- Hunkler, Dieter;
- Knothe, Lothar;
- Prinzbach, Horst;
- Neschchadin, Dmytro;
- Gescheidt, Georg;
- Mayer, Bernhard;
- Martin, Hans-Dieter;
- Heinze, Jürgen;
- Prakash, G. K. Surya;
- Olah, George A.
Publication type:
Article
Stereoselective Synthesis of 8-Oxabicyclo[3.2.1]octane-2,3,4,6,7-pentols and Total Asymmetric Synthesis of 2,6-Anhydrohepturonic Acid Derivatives and of β-C- manno-Pyranosides Suitable for the Construction of (1→3)-C,C-Linked Trisaccharides.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1363, doi. 10.1002/1522-2675(20010613)84:6<1363::AID-HLCA1363>3.0.CO;2-M
By:
- Gerber, Patrick;
- Vogel, Pierre
Publication type:
Article
Potential Energy Surfaces for the Na(3p)N2, Na(3p)HCN and Na(3p)C2H2 Complexes: Ab Initio Calculations and Model Considerations.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1459, doi. 10.1002/1522-2675(20010613)84:6<1459::AID-HLCA1459>3.0.CO;2-J
By:
- Jungen, Martin
Publication type:
Article
Demoniac Intervention in the Thermal Electrocyclic Ring Opening of Cyclobutenes: Fe(CO)3 Complexation of Pericyclic Transition Structures.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1396, doi. 10.1002/1522-2675(20010613)84:6<1396::AID-HLCA1396>3.0.CO;2-Z
By:
- Tantillo, Dean J.;
- Hoffmann, Roald
Publication type:
Article
Synthesis of the Macrocyclic Spermidine Alkaloid (±)-(2 R*,3 R*)-3-Hydroxycelacinnine.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1253, doi. 10.1002/1522-2675(20010613)84:6<1253::AID-HLCA1253>3.0.CO;2-U
By:
- Khanjin, Nikolai A.;
- Hesse, Manfred
Publication type:
Article
Comparative Supramolecular Chemistry of Coronene and Hexahelicene: Helix Alignment in Crystalline Complexes with Trimesic Acid (=Benzene-1,3,5-tricarboxylic Acid) and π-Acceptor Compounds.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1268, doi. 10.1002/1522-2675(20010613)84:6<1268::AID-HLCA1268>3.0.CO;2-Z
By:
- Ermer, Otto;
- Neudörfl, Jörg
Publication type:
Article
On the Solution Structure of PHB: Preparation and NMR Analysis of Isotopically Labeled Oligo[( R)-3-hydroxybutanoic Acids] (OHBs).
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1821, doi. 10.1002/1522-2675(20010613)84:6<1821::AID-HLCA1821>3.0.CO;2-C
By:
- Waser, Peter;
- Rueping, Magnus;
- Seebach, Dieter;
- Duchardt, Elke;
- Schwalbe, Harald
Publication type:
Article
Spiro[4.4]nonatetraene and its Positive and Negative Radical Ions: Molectronic Structure Investigations.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1670, doi. 10.1002/1522-2675(20010613)84:6<1670::AID-HLCA1670>3.0.CO;2-K
By:
- Haselbach, Edwin;
- Allan, Michael;
- Bally, Thomas;
- Bednarek, Pawel;
- Sergenton, Anne-Christelle;
- de Meijere, Armin;
- Kozhushkov, Sergej;
- Piacenza, Manuel;
- Grimme, Stefan
Publication type:
Article
Photolabile Protecting Groups for Nucleosides: Mechanistic Studies of the 2-(2-Nitrophenyl)ethyl Group.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1601, doi. 10.1002/1522-2675(20010613)84:6<1601::AID-HLCA1601>3.0.CO;2-S
By:
- Walbert, Stefan;
- Pfleiderer, Wolfgang;
- Steiner, Ulrich E.
Publication type:
Article
A Reinvestigation of the Structure and Torsional Potential of N2O5 by Gas-Phase Electron Diffraction Augmented by Ab Initio Theoretical Calculations.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1612, doi. 10.1002/1522-2675(20010613)84:6<1612::AID-HLCA1612>3.0.CO;2-K
By:
- McClelland, Bruce M.;
- Richardson, Alan D.;
- Hedberg, Kenneth
Publication type:
Article
On the π-Electron Distribution in Biphenylene Analogues.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1737, doi. 10.1002/1522-2675(20010613)84:6<1737::AID-HLCA1737>3.0.CO;2-H
By:
- Andres, Werner;
- Günther, Harald;
- Günther, Maria-Eugenia;
- Hausmann, Heike;
- Jikeli, Günther;
- von Puttkamer, Henning;
- Schmickler, Hans;
- Niu-Schwarz, Jier;
- Schwarz, W. H. Eugen
Publication type:
Article
The A 1 Π(u)←X 1 Σ Electronic Transition of CCN+ and CNC+.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1432, doi. 10.1002/1522-2675(20010613)84:6<1432::AID-HLCA1432>3.0.CO;2-S
By:
- Wyss, Muriel;
- Riaplov, Evgueni;
- Maier, John P.;
- Hochlaf, Majdi;
- Rosmus, Pavel
Publication type:
Article
The CO2 Trimer: Between Gas and Fluid Phase.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1355, doi. 10.1002/1522-2675(20010613)84:6<1355::AID-HLCA1355>3.0.CO;2-C
By:
- Dyson, Anthony J.;
- Huber, Hanspeter
Publication type:
Article
Wechselwirkungen in Kristallen, 176. Mitteilung , Redox-Reaktionen von Hexahydropyren: Kristallstrukturen seiner Radikalanion-Salze sowie von Trihydropyrenylium-tetrachloroaluminat und Dichtefunktionaltheorie-Berechnungen.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1227, doi. 10.1002/1522-2675(20010613)84:6<1227::AID-HLCA1227>3.0.CO;2-C
By:
- Bock, Hans;
- Claridge, Rodney F.;
- Bogdan, Camelia;
- Sievert, Mark;
- Krenzel, Volker
Publication type:
Article
Mode Selective Stereomutation and Parity Violation in Disulfane Isotopomers H2S2, D2S2, T2S2.
Published in:
Helvetica Chimica Acta, 2001, v. 84, n. 6, p. 1846, doi. 10.1002/1522-2675(20010613)84:6<1846::AID-HLCA1846>3.0.CO;2-F
By:
- Gottselig, Michael;
- Luckhaus, David;
- Quack, Martin;
- Stohner, Jürgen;
- Willeke, Martin
Publication type:
Article

Works matching IS 0018019X AND DT 2001 AND VI 84 AND IP 6

Are the Six-Membered λ<sup>5</sup>-Phosphorins Aromatic or Ylidic?

Avogadro and His Constant.

Hydrolysis of tRNA<sup>Phe</sup> on Suspensions of Amino Acids.

Cycloadditions of `Thiocarbonyl Ylides' with Tetracyanoethylene (=Ethenetetracarbonitrile): Interception of Intermediates.

Dimerization of C<sub>60</sub>: Symmetry Considerations.

Molecular Motions in Crystalline Anthracene and Naphthalene from Multitemperature Diffraction Data.

Self-Assembly of Tricuprous Double Helicates: Thermodynamics, Kinetics, and Mechanism.

Single and Double Ionization of Corannulene and Coronene.

Nucleosides, Part LXIV , Base-Labile Protecting Groups for the Oligoribonucleotide Synthesis.

Influence of Ring Annelation on the Mode Selectivity of the Ionized Diazabicycloheptenes and Corresponding Housanes: An ESR and ENDOR Study.

Photochemical Reaction Mechanisms of 2-Nitrobenzyl Compounds in Solution, I. 2-Nitrotoluene: Thermodynamic and Kinetic Parameters of the aci-Nitro Tautomer.

Observable Enols of Anhydrides: Claimed Literature Systems, Calculations, and Predictions.

An Unusual Rearrangement and its Dependence on Configuration.

Theoretical Study of the Benzene Dimer by the Density-Functional-Theory Formalism Based on Electron-Density Partitioning.

Foil on Stamps on Foil and on Other Unusual Materials.

Quantum-Mechanical Energy Calculations in Chemistry.

Oligosaccharide Analogues of Polysaccharides, Part 22 , Synthesis of Cyclodextrin Analogues Containing a Buta-1,3-diyne-1,4-diyl or a Butane-1,4-diyl Unit.

Oriented Nonspherical Atoms in Crystals Deduced from X-Ray Scattering Data.

Surprising Formation of Highly Substituted Azulenes on Thermolysis of 4,5,6,7,8-Pentamethyl-2 H-cyclohepta[ b]furan-2-one and Heptalene Formation with the New Azulenes.

New Optically Active 2 H-Azirin-3-amines as Synthons for Enantiomerically Pure 2,2-Disubstituted Glycines.

Pentopyranosyl Oligonucleotide Systems, Communication No. 10 , The α- L-Lyxopyranosyl-(4′→2′)-oligonucleotide System.

Exploiting the Confined Reactivity of C<sub>2v</sub>-Symmetrical Pentakis-Adducts of [60]Fullerene: Regioselective Formation of Hexakis-, Heptakis-, and Octakis-Adducts with Novel Addition Patterns by Addition of Diazomethane Followed by Dinitrogen Extrusion

Solid-State Behaviour of the Dichlorobenzenes: Actual, Semi-Virtual and Virtual Crystallography.

Secododecahedradienes - Syntheses, Reactivity, in-Plane Homoconjugated 3C/2e Cations, 4C/3e Radical Cations, and σ-Bishomoaromatic 4C/2e Dications?

Stereoselective Synthesis of 8-Oxabicyclo[3.2.1]octane-2,3,4,6,7-pentols and Total Asymmetric Synthesis of 2,6-Anhydrohepturonic Acid Derivatives and of β-C- manno-Pyranosides Suitable for the Construction of (1→3)-C,C-Linked Trisaccharides.

Potential Energy Surfaces for the Na(3p)N<sub>2</sub>, Na(3p)HCN and Na(3p)C<sub>2</sub>H<sub>2</sub> Complexes: Ab Initio Calculations and Model Considerations.

Demoniac Intervention in the Thermal Electrocyclic Ring Opening of Cyclobutenes: Fe(CO)<sub>3</sub> Complexation of Pericyclic Transition Structures.

Synthesis of the Macrocyclic Spermidine Alkaloid (±)-(2 R,3 R)-3-Hydroxycelacinnine.

Comparative Supramolecular Chemistry of Coronene and Hexahelicene: Helix Alignment in Crystalline Complexes with Trimesic Acid (=Benzene-1,3,5-tricarboxylic Acid) and π-Acceptor Compounds.

On the Solution Structure of PHB: Preparation and NMR Analysis of Isotopically Labeled Oligo[( R)-3-hydroxybutanoic Acids] (OHBs).

Spiro[4.4]nonatetraene and its Positive and Negative Radical Ions: Molectronic Structure Investigations.

Photolabile Protecting Groups for Nucleosides: Mechanistic Studies of the 2-(2-Nitrophenyl)ethyl Group.

A Reinvestigation of the Structure and Torsional Potential of N<sub>2</sub>O<sub>5</sub> by Gas-Phase Electron Diffraction Augmented by Ab Initio Theoretical Calculations.

On the π-Electron Distribution in Biphenylene Analogues.

The A <sup>1</sup> Π<sub>(u)</sub>←X <sup>1</sup> Σ Electronic Transition of CCN<sup>+</sup> and CNC<sup>+</sup>.

The CO<sub>2</sub> Trimer: Between Gas and Fluid Phase.

Wechselwirkungen in Kristallen, 176. Mitteilung , Redox-Reaktionen von Hexahydropyren: Kristallstrukturen seiner Radikalanion-Salze sowie von Trihydropyrenylium-tetrachloroaluminat und Dichtefunktionaltheorie-Berechnungen.

Mode Selective Stereomutation and Parity Violation in Disulfane Isotopomers H<sub>2</sub>S<sub>2</sub>, D<sub>2</sub>S<sub>2</sub>, T<sub>2</sub>S<sub>2</sub>.