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Original Articles

Three-dimensional 3d-4f heterometallic coordination polymers: syntheses, structures and properties

, , , , &
Pages 117-124 | Received 03 Jun 2010, Accepted 24 Jul 2010, Published online: 22 Feb 2011
 

Abstract

Six new 3d-4f heterometallic coordination polymers, {[Ln4Cu2(INAIP)8(H2O)15]·14H2O}n [Ln = La (1), Pr (2), Nd (3)] and {[LnCo0.5(INAIP)2(H2O)2]·2H2O}n [Ln = Tb (4), Dy (5), Yb (6), H2INAIP = 5-(isonicotinamido)isophthalic acid] have been synthesised and characterised by single crystal X-ray diffraction analysis. The results of structural analyses showed that 13 are isomorphous showing two-fold interpenetrated three-dimensional (3D) coordination framework, while 46 have the same non-interpenetrated 3D structure with 2D (4, 4) lanthanide-carboxylate layers. The results revealed that the different transition metal centres have great influence on the structures of the resulted complexes in this system. In addition, thermogravimetric and magnetic properties of 16, and photoluminescence of 4 were investigated.

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant Nos 20731004 and 20721002) and the National Basic Research Program of China (Grant Nos 2007CB925103 and 2010CB923303).

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