RESEARCH ARTICLE

 

Pb(II) and Mn(II) supermolecular polymers of bipy and (4-chlorophenyloxy) acetate anions: Syntheses, structure and fluorescence properties

 

 

Long Li^I; Kaisheng Diao^{I, II, *}; Yuqiu Ding^I

^ICollege of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, People's Republic of China
^IIGuangxi Key Laboratory of Chemistry and Engineering of Forest Products (Guangxi University for Nationalities), Nanning 530006, People's Republic of China

 

 

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ABSTRACT

Two new supermolecular polymers of the formula [Pb₄L₈(2,2'-bipy)₄] 1 and [MnL₂(4,4'-bipy)] 2 [HL = (4-chlorophenyloxy)acetic acid] have been synthesized and characterized by X-ray single crystal diffraction analysis, elemental analysis, fluorescence spectroscopy method and electrochemical analysis. Complex 1 is a multinuclear dimmer in which four Pb ions are linked together by the L ligands. In complex 2: , each carboxyl of L bridges two Mn ions to form infinite Mn-O-C-O rods. Both in complex 1 and complex 2: , π-π stacking and van der Waals' interactions make the two complexes stable, 3-D, supermolecular polymers. This work will contribute to the design and synthesis of fluorescent, supramolecular polymers.

Keywords: Supermolecular polymers, fluorescence, 4-chlorophenyloxyacetic acid

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Acknowledgements

This work was financially supported by the Scientific Research Program of the Education Department of Guangxi Zhuang Autonomous Region (Project No. 201010LX081), and the Scientific Research Program of Guangxi University for Nationalities (Project No. 2010QD019).

 

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Received 17 September 2012
Revised 7 November 2012
Accepted 15 November 2012

 

 

* To whom correspondence should be addressed. E-mail: llgxmd@163.com