Lead-carboxylate/polyiodide hybrids constructed from halogen bonding and asymmetric viologen: structures, visible-light-driven photocatalytic properties and enhanced photocurrent responses

The mono-substituted bipyridinium derivative 1-(3-carboxybenzyl)-4,4′-bipyridinium (cbpy) and polyiodide were adopted to construct two new lead-carboxylate hybrids: [Pb(cbpy)I 3 ·I 3 ] n ( 1 ) and {[Pb(cbpy) 2 ](I 3 ) 4 ·I 2 } n ( 2 ), in which interesting halogen bonds were detected. Specifically,...

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Bibliographic Details
Published in:CrystEngComm 2018, Vol.2 (16), p.2245-2252
Main Authors: Zhao, Li-Ming, Zhang, Wen-Ting, Song, Kai-Yue, Wu, Qi-Qi, Li, Yi, Li, Hao-Hong, Chen, Zhi-Rong
Format: Article
Language:English
Subjects:
Lead
Photocatalysis
Photodegradation
Photoelectric effect
Photoelectric emission
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Summary:The mono-substituted bipyridinium derivative 1-(3-carboxybenzyl)-4,4′-bipyridinium (cbpy) and polyiodide were adopted to construct two new lead-carboxylate hybrids: [Pb(cbpy)I 3 ·I 3 ] n ( 1 ) and {[Pb(cbpy) 2 ](I 3 ) 4 ·I 2 } n ( 2 ), in which interesting halogen bonds were detected. Specifically, the hybrids demonstrate efficient photocatalytic degradation of organic dyes and excellent photocurrent response, and the mechanisms of degradation have been discussed and verified using theoretical calculations. Two lead-carboxylate/polyiodide hybrids constructed from halogen bonding and asymmetric viologen have been synthesized, which exhibit efficient photocatalytic degeneration performances.
ISSN:1466-8033
1466-8033
DOI:10.1039/c8ce00120k