nucleophilicity


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nucleophilicity

(ˌnjuːklɪəʊfɪˈlɪsɪtɪ)
n
(Chemistry) chem the quality of being nucleophilic
References in periodicals archive ?
Moreover, 4-VP can be chemically modified to prepare a charged particle with tunable alkyl chain length and structure by the reaction with various quartemization agents because of the nucleophilicity of the nitrogen atoms on the pyridine ring [35, 36].
This high electron density leads to strong boron-based nucleophilicity and extremely high reduction potentials both highly novel phenomena.
This can be explained by the fact that introduction of alkyl moiety into protected hydrazine increases nucleophilicity of hydrazine, making the monoalkylated compound prone to undergo a second alkylation.
However, the second-order reaction rate for the formation of ACR-cysteine adducts is governed not only by the relative concentrations of each reactant but also by the electrophilicity of the electron acceptor (ACR, see above) and the relative nucleophilicity of the electron donor (cysteine sulfhydryl group).
The reason fluoride is so destructive to biomolecules is that it has a greater nucleophilicity than hydroxyl groups, and can substitute for OH on carbon )n all the important biomolecules.
Aliphatic NHs have enhanced reaction rates as compared to their aromatic counterparts due to increased nucleophilicity, and impart superior mechanical and weathering properties to the coating.
Weakly coordinating anions with very low nucleophilicity [1, 2] and extremely low proton affinity have been studied for some time because of the need for very stable counter-ions in a great variety of different chemical and electrochemical processes, which include efforts to create new catalysts, unstable cations, superstrong oxidants, acids, etc.
Thus it is possibly established that the -OH group in aromatic linkages increases its degree of nucleophilicity, which in turn increases its linkage with the polymer.