Dramatically enhanced carbon acidity of the nitrobenzyl fragment in a nickel(II) scorpionate complex |
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| Authors: | Boiocchi Massimo Fabbrizzi Luigi Foti Francesco Monzani Enrico Poggi Antonio |
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| Affiliation: | Centro Grandi Strumenti, Dipartimento di Chimica Generale, and INSTM, Sezione di Pavia, Università di Pavia, 27100 Pavia, Italy. |
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| Abstract: | The -CH(2)- group of the 2-nitrobenzyl pendant arm of the scorpionate complex I deprotonates in basic aqueous solution (pK(a) = 10.6), due to the coordination of the nitronate group to the nickel(II) center. Metal coordination enhances 2-nitrobenzene acidity by 10 orders of magnitude. [reaction: see text] |
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