Ferrocene-Containing Pseudorotaxanes in Crystals: Aromatic Interactions with Hammett Correlation [PDF]
Molecules, 2022 Single crystals of pseudorotaxanes, [(FcCH2NH2CH2Ar)(DB24C8)][PF6] (DB24C8 = dibenzo[24]crown-8, Fc = Fe(C5H4)(C5H5), Ar = -C6H3-3,4-Cl2, -C6H3-3,4-F2, -C6H4-4-F, -C6H4-4-Cl, -C6H4-4-Br, -C6H3-3-F-4-Me, -C6H4-4-I) and [(FcCH2NH2CH2C6H4-4-Me)(DB24C8)][Ni ...
Yuji Suzaki +6 more
doaj +4 more sources
Hammett Correlation in the Accelerated Formation of 2,3-Diphenylquinoxalines in Nebulizer Microdroplets [PDF]
Molecules, 2021 The accelerated formation of 2,3-diphenylquinoxalines in microdroplets generated in a nebulizer has been investigated by competition experiments in which equimolar quantities of 1,2-phenylenediamine, C6H4(NH2)2, and a 4-substituted homologue, XC6H3(NH2)2
Nathan W. Fenwick +4 more
doaj +5 more sources
Hammett correlation in competition experiments in dissociation of ionised substituted benzophenones and dibenzylideneacetones. [PDF]
Eur J Mass Spectrom (Chichester), 2023 A convenient method of applying competition experiments to devise a Hammett correlation in the dissociation by α-cleavage of 17 ionised 3- and 4-substituted benzophenones, YC6H4COC6H5[Y=F, Cl, Br, CH3, CH3O, NH2, CF3, OH, NO2, CN and N(CH3)2] is reported and discussed. The results given by this approach, which rely on the relative abundance of [M-C6H5]+
Fenwick NW +3 more
europepmc +3 more sources
Exchange Speed of Four-Component Nanorotors Correlates with Hammett Substituent Constants [PDF]
Chemistry, 2021 Three distinct four-component supramolecular nanorotors were prepared, using, for the first time, bipyridine instead of phenanthroline stations in the stator.
Yi-Fan Li +4 more
doaj +2 more sources
Micro‐Environment Programmable Quinoline COFs for High‐Performance Photocatalytic H2O2 Generation and Benzylamine Coupling [PDF]
Advanced SciencePhotocatalytic H2O2 synthesis from water and oxygen by covalent organic frameworks (COFs) has attracted much attention currently. However, conventional COFs often suffer from insufficient stability and activity due to the unclear structure‐activity ...
Mengchao Guo +12 more
doaj +2 more sources
A comparative LFER study of the reactivity of pyridineacetic, pyridineacetic acids N-oxide and substituted phenylacetic acids with diazodiphenylmethane in various alcohols [PDF]
Journal of the Serbian Chemical Society, 2000 Rate constants have been determined for the reactions of diazodiphenylmethane (DDM) with 3- and 4-pyridineacetic acid, 3- and 4-pyridineacetic acid N-oxide and some meta- and para-substituted phenylacetic acids in twelve alcohols. The determined
Drmanić Saša Z. +2 more
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The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols [PDF]
Journal of the Serbian Chemical Society, 2000 Rate constants have been determined for the reactions of diazodiphenylmethane with a number of 6-substituted nicotinic acids and p-substituted benzoic acids in twelve alcohols.
Drmanić Saša Ž. +2 more
doaj +3 more sources
Extending the Hammett correlation to mechanochemical reactions
Chemical Communications, 2023 The correlation between kinetics and Hammett constants in a model mechanochemical imine formation indicates that the mechanistic framework of physical–organic chemistry could be used to describe solid-state reactions conducted by ball milling.
Leonarda Vugrin +3 more
openaire +2 more sources
Substituted ferrocenes: Synthesis and correlation of their electronic spectra with structure (LFER) [PDF]
Journal of the Serbian Chemical Society, 2002 Three series of diacylferrocences (I) and ferrocenylidene acetophenones (II) and monoalkyl ferrocences (III) were synthesized and their electronic spectra in the visible region were studied.
M. EL-HASHASH +2 more
doaj +3 more sources
Substituent effect on IR, 1H and 13C NMR spectral data in n-(substituted phenyl)-2-cyanoacetamides: A correlation study [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2013 Linear free energy relationships (LFER) were applied to the IR, 1H and 13C NMR spectral data of N-(substituted phenyl)-2-cyanoacetamides. A variety of substituents were employed for phenyl substitution and fairly good correlations were obtained using ...
Marinković Aleksandar D. +5 more
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