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Heterometallic 3d-4f coordination polymers based on 1,4,7-triazacyclononane-1,4,7-triyl-tris(methylenephosphonate)
Yan-Hui Su1, Song Song Bao, Li-Min Zheng
1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, China.
Abstract:
Five heterometallic 3d-4f coordination polymers based on 1,4,7-triazacyclononane-1,4,7-triyl-tris(methylenephosphonic acid) (notpH6) are reported. Compounds [FeLn(notpH)(H2O)4]ClO4·5H2O [Ln = Nd (FeNd), Gd (FeGd), Sm (FeSm), Eu (FeEu)] are isostructural. All show layer structures in which the Fe(notpH)(2-) unit serves as a metalloligand to link four equivalent Ln(III) ions into a layer. Compound [CuLa(notpH2)(H2O)2]ClO4·3H2O (CuLa) displays a chain structure, where the Cu(notpH2)(2-) unit connects the La(III) ions into a chain. The magnetic properties of FeLn are studied.
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