Results 261 to 270 of about 363,660 (280)

Towards a Physical Interpretation of Substituent Effect: Quantum Chemical Interpretation of Hammett Substituent Constants

Journal of Molecular Structure, 2017
Tadeusz Krygowski, Halina Szatylowicz
exaly  

Structural Effects in Solvolytic Reactions; Carbon-13 NMR Studies of Carbocations^(†): Effect of Increasing Electron Demand on the Carbon-13 NMR Shifts in Substituted Tert-Cumyl and 1-Aryl-1-Cyclopentyl Carbocations—Correlation of the Data by a New Set of Substituent Constants, σ^(C+)^(*)^(†)

Proceedings of the National Academy of Sciences of the United States of America, 1980
David P Kelly, H C Brown, D P Kelly
exaly  

Field constants of NQR frequencies and the nature of the taft ?* substituent constants

Theoretical and Experimental Chemistry, 1977
G. K. Semin, V. P. Kazakov, E. V. Bryukhova   +2 more
openaire   +1 more source

Relationship Between Proton—Proton NMR Coupling Constants and Substituent Electronegativities. IV—An Extended Karplus Equation Accounting for Interactions Between Substituents and Its Application to Coupling Constant Data Calculated by the Extended Hückel Method

Magnetic Resonance in Chemistry, 1989
Cornelis Altona, Lambertus A Donders
exaly  

Hammett Constants of Substituents Containing Phosphorus

Angewandte Chemie International Edition in English, 1966
openaire   +1 more source

How the Substituent Effect Influences π-Electron Delocalisation in the Ring of Reactants in the Reaction Defining the Hammett Substituent Constants σm and σp

International Journal of Molecular Sciences, 2005
Tadeusz Krygowski, Michał K Cyrański
exaly  

Effect of Excited-State Substituent Constant on the UV Spectra of 1,4-Disubstituted Benzenes

Chinese Journal of Chemical Physics, 2009
Chenzhong Cao
exaly  

Determining the Excited-State Substituent Constants of Meta-Substituent From 3,4'-Disubstituted Stilbenes

Journal of Physical Organic Chemistry, 2012
Chenzhong Cao, Guanfan Chen
exaly  

Examination of the Interrelationship Between Aliphatic Group Dipole Moment and Polar Substituent Constants

Journal of Pharmaceutical Sciences, 1984
Eric J Lien
exaly  

Erratum to: A Critical Compilation of Substituent Constants

1978
Svante Wold, Michael Sjöström
openaire   +1 more source