Halogen bonded cocrystal polymorphs of 1,4-di(4′-pyridyl)-1,3-diacetylene

Pan Zhang; Geetha Bolla; Gege Qiu; Zhibin Shu; Qingqing Yan; Qingyuan Li; Shang Ding; Zhenjie Ni; Weigang Zhu; Huanli Dong; Yonggang Zhen; Wenping Hu

doi:10.1039/C7CE00892A

Halogen bonded cocrystal polymorphs of 1,4-di(4′-pyridyl)-1,3-diacetylene†

Pan Zhang,^ab Geetha Bolla,^b Gege Qiu,^ab Zhibin Shu,^b Qingqing Yan,^b Qingyuan Li,^b Shang Ding,^ab Zhenjie Ni,^b Weigang Zhu,^b Huanli Dong,

*^b Yonggang Zhen^b and Wenping Hu^bc

Author affiliations

* Corresponding authors

^a Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China

^b Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
E-mail: dhl522@iccas.ac.cn

^c Department of Chemistry, School of Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China

Abstract

Cocrystal polymorphs based on sym-triiodo-trifluorobenzene (IFB) with 1,4-di(4′-pyridyl)-1,3-diacetylene (DPDA) are formed with halogen bond interactions. Two cocrystal phases were obtained by using different solvents, acetonitrile and methylene chloride, and confirmed by their single crystal structure data. In the application direction, the different photo-physical properties of the two phases were discussed carefully.

CrystEngComm

Halogen bonded cocrystal polymorphs of 1,4-di(4′-pyridyl)-1,3-diacetylene†

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Halogen bonded cocrystal polymorphs of 1,4-di(4′-pyridyl)-1,3-diacetylene

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