Skip to main content
Log in

CONFORMATIONAL DUALISM OF DIPYRIDYL-SUBSTITUTED FORMAMIDINE

  • Published:
Journal of Structural Chemistry Aims and scope Submit manuscript

Abstract

A new polymorph of the β-modification of N,N′-di(pyridin-2-yl)formamidine that is more thermodynamically stable than the known α-modification is obtained. The crystal of β-modification contains hydrogen bonded molecular dimers with a skewed geometry. Therefore, the space group is not centrosymmetric – P42. This geometry is a result of the molecular E-syn,syn conformation in crystals of the β-phase, which differs from the E-anti,syn conformation in the α-phase. The number of crystallographically non-equivalent molecules (8) in the β-modification is unusually large for organic compounds. The structure of the packing is analyzed, and it is shown that the centers of dimers follow the sites of a distorted body-centered cubic pseudo-lattice (Ат ≈ 10 Å, αт = 90°) with a 16 times decreased unit cell volume. Reasons for symmetry violations causing modulations are considered.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Scheme 1
Scheme 2
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

REFERENCES

  1. Z. Guo, R. Huo, Y. Q. Tan, V. Blair, G. B. Deacon, and P. C. Junk. Coord. Chem. Rev., 2020, 415, 213232.

    Article  CAS  Google Scholar 

  2. G. B. Deacon, M. E. Hossain, P. C. Junk, and M. Salehisaki. Coord. Chem. Rev., 2017, 340, 247.

    Article  CAS  Google Scholar 

  3. F. T. Edelmann. Recent Progress in the Chemistry of Metal Amidinates and Guanidinates: Syntheses, Catalysis and Materials. In: Advances in Organometallic Chemistry / Eds. A. F. Hill and M. J. Fink. Academic Press, 2013, Vol. 61, 55.

  4. Y. Z. Ma, N. A. Pushkarevsky, T. S. Sukhikh, A. E. Galashov, A. G. Makarov, P. W. Roesky, and S. N. Konchenko. Eur. J. Inorg. Chem., 2018, 2018, 3388.

    Article  CAS  Google Scholar 

  5. A. Millet, C. Xue, E. Song, C. Turro, and K. R. Dunbar. Inorg. Chem., 2020, 59, 2255.

    Article  CAS  PubMed  Google Scholar 

  6. S. Bambirra, M. W. Bouwkamp, A. Meetsma, and B. Hessen. J. Am. Chem. Soc., 2004, 126, 9182.

    Article  CAS  PubMed  Google Scholar 

  7. R. M. Roberts. J. Org. Chem., 1949, 14, 277.

    Article  CAS  PubMed  Google Scholar 

  8. M. N. C. Soeiro, K. Werbovetz, D. W. Boykin, W. D. Wilson, M. Z. Wang, and A. Hemphill. Parasitology, 2013, 140, 929.

    Article  CAS  PubMed  Google Scholar 

  9. X. Nan, J. Zhang, H.-J. Li, R. Wu, S.-B. Fang, Z.-Z. Zhang, and Y.-C. Wu. Eur. J. Med. Chem., 2020, 200, 112470.

    Article  CAS  PubMed  Google Scholar 

  10. J. A. Schott, C.-L. Do-Thanh, S. M. Mahurin, Z. Tian, N. C. Onishi, D.-E. Jiang, and S. Dai. J. Membr. Sci., 2018, 565, 203.

    Article  CAS  Google Scholar 

  11. A. Calderón-Díaz, J. Arras, E. T. Miller, N. Bhuvanesh, C. D. McMillen, and M. Stollenz. Eur. J. Org. Chem., 2020, 2020, 3243.

    Article  CAS  Google Scholar 

  12. S. Preusser, P. R. W. Schönherr, H. Görls, S. Krieck, W. Imhof, and M. Westerhausen. J. Mol. Struct., 2020, 1205, 127622.

    Article  CAS  Google Scholar 

  13. S. Bulut and W. L. Queen. J. Org. Chem., 2018, 83, 3806.

    Article  CAS  PubMed  Google Scholar 

  14. M. L. Cole, P. C. Junk, and L. M. Louis. J. Chem. Soc., Dalton Trans., 2002, 3906.

  15. M. K. Rofouei, N. Sohrabi, M. Shamsipur, E. Fereyduni, S. Ayyappan, and N. Sundaraganesan. Spectrochim. Acta, Part A, 2010, 76, 182.

    Article  CAS  Google Scholar 

  16. M. Handa, T. Ikeue, Y. Harada, Y. Kimura, T. Nishimura, D. Yoshioka, and M. Mikuriya. X-ray Struct. Anal. Online, 2013, 29, 25.

    Article  Google Scholar 

  17. A. Petitjean, L. Xing, and R. Wang. CrystEngComm, 2010, 12, 1397.

    Article  CAS  Google Scholar 

  18. X. An, L. Jiang, Q. Li, W. Li, and J. Cheng. Spectrochim. Acta, Part A, 2015, 138, 195.

    Article  CAS  Google Scholar 

  19. L. Xing, C. Wiegert, and A. Petitjean. J. Org. Chem., 2009, 74, 9513.

    Article  CAS  PubMed  Google Scholar 

  20. W. Zhao, R. Wang, N. J. Mosey, and A. Petitjean. Org. Lett., 2011, 13, 5160.

    Article  CAS  PubMed  Google Scholar 

  21. C.-J. Wu, C.-W. Su, C.-W. Yeh, J.-D. Chen, and J.-C. Wang. Acta Crystallogr., Sect. E, 2009, 65, o536.

    Article  CAS  Google Scholar 

  22. H. Komber, H.-H. Limbach, F. Böhme, and C. Kunert. J. Am. Chem. Soc., 2002, 124, 11955.

    Article  CAS  PubMed  Google Scholar 

  23. Bruker Apex3 software suite: Apex3, SADABS-2016/2 and SAINT, version 2018.7-2. Bruker AXS Inc.: Madison, WI, 2017.

  24. G. Sheldrick. Acta Crystallogr., Sect. A, 2015, 71, 3.

    Article  Google Scholar 

  25. G. Sheldrick. Acta Crystallogr., Sect. C, 2015, 71, 3.

    Article  Google Scholar 

  26. O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard, and H. Puschmann. J. Appl. Crystallogr., 2009, 42, 339.

    Article  CAS  Google Scholar 

  27. A. V. Alexeev and S. A. Gromilov. J. Struct. Chem., 2010, 51(1), 156.

    Article  CAS  Google Scholar 

  28. A. V. Alexeev and S. A. Gromilov. J. Struct. Chem., 2010, 51(4), 744.

    Article  CAS  Google Scholar 

  29. C. Prescher and V. Prakapenka: DIOPTAS. A Program for Reduction of Two-Dimensional X-Ray Diffraction Data and Data Exploration. High Pressure Research, 2015, 35, 223-230.

    Article  CAS  Google Scholar 

  30. S. V. Borisov. J. Struct. Chem., 1986, 27(1), 164.

    Article  CAS  Google Scholar 

  31. S. A. Gromilov and S. V. Borisov. J. Struct. Chem., 2003, 44(4), 664.

    Article  CAS  Google Scholar 

  32. S. A. Gromilov, E. A. Bykova, and S. V. Borisov. Crystallogr. Report, 2011, 56, 947.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to T. S. Sukhikh.

Ethics declarations

The authors declare that they have no conflict of interests.

Additional information

Russian Text © The Author(s), 2021, published in Zhurnal Strukturnoi Khimii, 2021, Vol. 62, No. 6, pp. 1035-1042.https://doi.org/10.26902/JSC_id74448

Supplementary material

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sukhikh, T.S., Kolybalov, D.S., Bashirov, D.A. et al. CONFORMATIONAL DUALISM OF DIPYRIDYL-SUBSTITUTED FORMAMIDINE. J Struct Chem 62, 966–973 (2021). https://doi.org/10.1134/S0022476621060160

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0022476621060160

Keywords

Navigation