Stabilization of D5h and C2v valence tautomers of the croconate dianion

Chi-Keung Lam; Mei-Fun Cheng; Chi-Lun Li; Jie-Peng Zhang; Xiao-Ming Chen; Wai-Kee Li; Thomas C. W. Mak

doi:10.1039/B312545A

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Stabilization of D_5h and C_2v valence tautomers of the croconate dianion†

Chi-Keung Lam,^a Mei-Fun Cheng,^a Chi-Lun Li,^a Jie-Peng Zhang,^b Xiao-Ming Chen,^b Wai-Kee Li^a and Thomas C. W. Mak*^a

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* Corresponding authors

^a Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
E-mail: tcwmak@cuhk.edu.hk

^b School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China

Abstract

The non-benzenoid aromatic D_5h and enediolate C_2v form of C₅O₅²⁻ have been stabilized by hydrogen bonding with urea and 1,3-dimethylurea, respectively, in the host lattices of two novel crystalline inclusion compounds.

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Article information

DOI: https://doi.org/10.1039/B312545A
Article type: Communication
Submitted: 09 Oct 2003
Accepted: 20 Nov 2003
First published: 18 Dec 2003

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Chem. Commun., 2004, 448-449

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Stabilization of D_5h and C_2v valence tautomers of the croconate dianion

C. Lam, M. Cheng, C. Li, J. Zhang, X. Chen, W. Li and T. C. W. Mak, Chem. Commun., 2004, 448 DOI: 10.1039/B312545A

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