4.6 Article

On the Unexpected Stability of the Dianion of Perylene Diimide in Water-A Computational Study

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JOURNAL OF PHYSICAL CHEMISTRY A
卷 115, 期 10, 页码 2047-2056

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AMER CHEMICAL SOC
DOI: 10.1021/jp1107284

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  1. Israel Science Foundation
  2. Helen and Martin Kimmel Center for Molecular Design

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It was recently reported (Shirman, et al. J. Phys. Chem. B, 2008, 112, 8855) that the stable dianion of perylene diimide can be prepared in water. Herein, a computational study (using DFT at the M06-2X/6-31++G** level of theory) of this species is presented. It is shown that this dianion is aromatic and that its reaction with water is highly endergonic. The primary cause for this is the stabilization provided by the enhanced aromaticity of the dianion relative to its neutral counterpart. Comparison with other aromatic dianions is also presented.

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