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Structure of 2-(1-phenylimidiazolidin-2-ylidene)- malononitrile and 2-(hexahydropyrimidinyl-2-ylidene)- malononitrile

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The crystal structure of 2-(1-phenylimidazolidin-2-ylidene)-malononitrile, I, and 2-(hexahydropyrimidin-2-ylidene)-malononitrile, II, were determined with crystal data (I: Monoclinic, P21/n, a=8.116(3) Å, b=7.650(3) Å, c=17.399(7) Å, β=93.065(6)°, R all=0.0980; II: Monoclinic, P21/n, a=9.169(2) Å, b=8.103(2) Å, c=10.337(3) Å, β=99.853(4)°, R all=0.0877). N−H···N hydrogen bonds were responsible for the formation of centrosymmetric dimers of I and one-dimensional zigzag molecular chains of II.

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Acknowledgments

This research was financially supported by the National Natural Science Foundation of China (No. 60171008), Shanghai Science and Technology Committee (No.0452nm087), Shanghai-Applied Material R&D Foundation (No. 0422) and Youth Fund of Fudan University.

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Authors and Affiliations

  1. Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China

    Yin-Xiang Lu, Hui Zhou, Peng Guo, Lan Jin & Wei Xu

  2. Department of Chemistry, Fudan University, Shanghai, 200433, P. R. China

    Wei Xu

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  1. Yin-Xiang Lu
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  2. Hui Zhou
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  3. Peng Guo
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  4. Lan Jin
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  5. Wei Xu
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Correspondence to Wei Xu.

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Lu, YX., Zhou, H., Guo, P. et al. Structure of 2-(1-phenylimidiazolidin-2-ylidene)- malononitrile and 2-(hexahydropyrimidinyl-2-ylidene)- malononitrile. J Chem Crystallogr 36, 691–695 (2006). https://doi.org/10.1007/s10870-006-9120-6

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  • DOI: https://doi.org/10.1007/s10870-006-9120-6

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