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Four Novel Zn (II) Coordination Polymers Based on 4′-Ferrocenyl-3,2′:6′,3′′-Terpyridine: Engineering a Switch from 1D Helical Polymer Chain to 2D Network by Coordination Anion Modulation

1
Department of Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials of Anhui Province, Anhui University, Hefei 230601, China
2
Department of Food and Environmental Engineering, Chuzhou Vocational and Technical College, Chuzhou 239000, China
3
State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
*
Authors to whom correspondence should be addressed.
Materials 2017, 10(12), 1360; https://doi.org/10.3390/ma10121360
Received: 12 October 2017 / Revised: 21 November 2017 / Accepted: 23 November 2017 / Published: 27 November 2017
(This article belongs to the Section Structure Analysis and Characterization)
Four novel ZnII coordination polymers, [(ZnCl2)2(L)2]n (1), [(ZnBr2)2(L)2]n (2), and [(ZnI2)2(L)2]n (3) and {[Zn(SCN)2]1.5(L)3}n (4), have been synthesized based on 4′-ferrocenyl-3,2′:6′,3′′-terpyridine with ZnII ions and different coordination anions under similar ambient conditions. Their structures have been confirmed using single crystal X-ray diffraction analysis, showing that complexes 13 are one-dimensional (1D) double-stranded metal ion helical polymer chains and complex 4 is of a two-dimensional (2D) network. The structural transformations of them from a 1D polymer chain to a 2D network under the influence of the coordination anions has been systematic investigated. Furthermore, the optical band gaps have been measured by optical diffuse reflectance spectroscopy, revealing that the ligand and the complexes should have semiconductor properties. View Full-Text
Keywords: coordination polymer; 3,2′:6′,3′′-terpyridine; ZnII ion; crystal structure; coordination anion coordination polymer; 3,2′:6′,3′′-terpyridine; ZnII ion; crystal structure; coordination anion
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MDPI and ACS Style

Xiao, L.; Wu, D.; Wang, X.; Du, W.; Zhang, J.; Li, S.; Zhou, H.; Wu, J.; Tian, Y. Four Novel Zn (II) Coordination Polymers Based on 4′-Ferrocenyl-3,2′:6′,3′′-Terpyridine: Engineering a Switch from 1D Helical Polymer Chain to 2D Network by Coordination Anion Modulation. Materials 2017, 10, 1360.

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