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South African Journal of Chemistry
versión On-line ISSN 1996-840X
versión impresa ISSN 0379-4350
S.Afr.j.chem. (Online) vol.65 Durban 2012
RESEARCH ARTICLE
Pb(II) and Mn(II) supermolecular polymers of bipy and (4-chlorophenyloxy) acetate anions: Syntheses, structure and fluorescence properties
Long LiI; Kaisheng DiaoI, II, *; Yuqiu DingI
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
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
Full text available only in PDF format.
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