addenda and errata\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296

A novel heterocyclic compound: catena-poly[[[di­aquasodium(I)]-di-μ-aqua] hemi(1,5-di­hydroxy-4,8,9-trioxa-2,6-di­azabi­cyclo[3.3.1]nona-2,6-diene-3,7-diolate)]. Retraction

aSchool of Life Sciences, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China, and bDepartment of Chemistry, Shangrao Normal College, Jiangxi, People's Republic of China
*Correspondence e-mail: zhuhl@nju.edu.cn

(Received 26 November 2007; accepted 27 November 2007; online 25 January 2008)

The paper by Fang et al. [Acta Cryst. (2007), C63, m193–m194 ] is retracted. It has subsequently been shown that the crystal studied was borax.

We wish to withdraw the paper by Fang et al. (2007[Fang, R.-Q., Xiao, Z.-P., Cao, P., Shi, D.-H. & Zhu, H.-L. (2007). Acta Cryst. C63, m193-m194.]) on a compound alleged to be [Na(H2O)4]2(C4H2N2O7). It has subsequently been shown that the crystal studied was borax, [Na(H2O)4]2(B4H4O9), which was studied by neutron diffraction by Levy & Lisensky (1978[Levy, H. A. & Lisensky, G. C. (1978). Acta Cryst. B34, 3502-3510.]). The C, H and N analytical data reported by us in our paper are also incorrect.

References

First citationFang, R.-Q., Xiao, Z.-P., Cao, P., Shi, D.-H. & Zhu, H.-L. (2007). Acta Cryst. C63, m193–m194.  Web of Science CSD CrossRef IUCr Journals Google Scholar
First citationLevy, H. A. & Lisensky, G. C. (1978). Acta Cryst. B34, 3502–3510.  CrossRef CAS IUCr Journals Web of Science Google Scholar

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Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
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