Results 131 to 140 of about 2,266 (161)
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International Journal of Quantum Chemistry, 2012
AbstractLocal reactivity is obtained for isatoic anhydride (ISA) (2H 3,1‐benzoxazin‐2,4(1H)‐dione) and 20 of its derivatives, using reactivity indices such as: local softness, condensed Fukui function, relative electrophilicity index, and relative nucleophilicity index.
José S. Durand‐Niconoff +4 more
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AbstractLocal reactivity is obtained for isatoic anhydride (ISA) (2H 3,1‐benzoxazin‐2,4(1H)‐dione) and 20 of its derivatives, using reactivity indices such as: local softness, condensed Fukui function, relative electrophilicity index, and relative nucleophilicity index.
José S. Durand‐Niconoff +4 more
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Analytical Chemistry, 1997
Substituted 1,2-diphenylethanes undergo competitive dissociations upon electron ionization (EI) to generate substituted benzyl cation and benzyl radical pairs. Application of the kinetic method to the previous reported EI mass spectra of these covalently bound precursor ions (data are taken from McLafferty et al. J. Am. Chem. Soc.
G, Chen, P, Wong, R G, Cooks
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Substituted 1,2-diphenylethanes undergo competitive dissociations upon electron ionization (EI) to generate substituted benzyl cation and benzyl radical pairs. Application of the kinetic method to the previous reported EI mass spectra of these covalently bound precursor ions (data are taken from McLafferty et al. J. Am. Chem. Soc.
G, Chen, P, Wong, R G, Cooks
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The hammett relationship in CpTiCl2OPhX (X = CH3O, CH3, Cl, NO2) + BuLi(Et2AlCl) catalytic systems
Journal of Organometallic Chemistry, 1985Abstract The CpTiCl2OPhX (X = CH3O, CH3, Cl, NO2 + BuLi system is active m olefin hydrogenation, while the CpTiCl2OPhX + Et2AlCl system is active in olefin polymerization. In both cases a linear relationship between the Hammett substituent constants and the catalytic activity of the investigated systems is found.
W. Skupiński, A. Wasilewski
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Journal of Inorganic and Nuclear Chemistry, 1962
Abstract The first and second stability constants of seventeen copper(II) complexes with aromatic carboxylic acids have been determined at 25° in a 50 per cent by volume water/dioxane solvent with four of these systems being extended to 30 and 35°. The corresponding thermodynamic values have been calculated.
W.R. May, M.M. Jones
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Abstract The first and second stability constants of seventeen copper(II) complexes with aromatic carboxylic acids have been determined at 25° in a 50 per cent by volume water/dioxane solvent with four of these systems being extended to 30 and 35°. The corresponding thermodynamic values have been calculated.
W.R. May, M.M. Jones
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Australian Journal of Chemistry
Linear free energy relationships (LFERs) are an important topic in physical-organic chemistry. When one browses the literature, one encounters innumerable instances wherein the series in question conforms to LFER; one also encounters appreciable numbers of examples of non-conformity to LFER.
Sanjeev Rachuru +2 more
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Linear free energy relationships (LFERs) are an important topic in physical-organic chemistry. When one browses the literature, one encounters innumerable instances wherein the series in question conforms to LFER; one also encounters appreciable numbers of examples of non-conformity to LFER.
Sanjeev Rachuru +2 more
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A G4 approach to computing the Hammett substituent constants σp, σm, σ−, σ+, and σ+m
Journal of Physical Organic Chemistry, 2023Paul Rablen
exaly
The directive influence of substituents on anomalous ozonolysis a hammett type relationship
Tetrahedron Letters, 1963Erling Bernatek +2 more
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Entropy Requirements of the Hammett Relationship
The Journal of Chemical Physics, 1955openaire +1 more source