Experimental Evidence of Reversible Crystalline State Transformation of 2,2':6',2"-Terpyridine: Visualization and Seed Effect

DOI: 10.4236/aces.2015.54050   PDF   HTML   XML   2,776 Downloads   3,101 Views  

Abstract

We have succeeded in causing reversible polymorphic transformation of 2,2':6',2"-terpyridine (terpy). By contacting a template terpy crystal with the target crystal, reversible orthorhombic-to-monoclinic transformation occurred directly without via melting state. The transformation process is successfully visualized and it is found that the template crystal influences the transition temperature itself.

Share and Cite:

Yokota, M. , Ito, A. and Doki, N. (2015) Experimental Evidence of Reversible Crystalline State Transformation of 2,2':6',2"-Terpyridine: Visualization and Seed Effect. Advances in Chemical Engineering and Science, 5, 484-489. doi: 10.4236/aces.2015.54050.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Mutai, T., Satou, H. and Araki, K. (2005) Reproducible On-Off Switching of Solid-State Luminescence by Controlling Molecular Packing through Heat-Mode Interconversion. Nature Materials, 4, 685-687.
http://dx.doi.org/10.1038/nmat1454
[2] Bessel, C.A., See, R.F., Jameson, D.L., Churchill, M. and Takeuchi, K.J. (1992) Structural Considerations of Terdentate Ligands: Crystal Structures of 2,2′: 6′,2″-terpyridine and 2,6-bis(pyrazol-1-yl)pyridine. Journal of the Chemical Society, Dalton Transactions, 22, 3223-3228.
http://dx.doi.org/10.1039/DT9920003223
[3] Bowes, K.F., Clark, I.P., Cole, J.M., Gourlay, M., Griffin, A.M.E., Mahon, M.F., Ooi, L., Parker, A.W., Raithby, P.R., Sparkes, H.A. and Towrie, M. (2005) A New Polymorph of Terpyridine: Variable Temperature X-Ray Diffraction Studies and Solid State Photophysical Properties. CrystEngComm, 7, 269-275.
http://dx.doi.org/10.1039/b502275d

  
comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.