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. 2005 Mar 23;33(6):1779–1789. doi: 10.1093/nar/gki317

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© The Author 2005. Published by Oxford University Press. All rights reserved

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(a) Electrostatic interaction energy (ΔE_elec) between cytosine and the substituted benzenes Ph-X (kcal/mol) versus the local hardness η(r). (b) Correlation part of the interaction energy (ΔE_Corr) between cytosine and the substituted benzenes Ph-X (kcal/mol) versus the benzene ring polarizability divided by R⁶ (see Equation 3) (a.u.).