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2253993 
Journal Article 
Two Novel Lanthanide Coordination Polymers with Differently Bridging Pyridine-2,4,6-tricarboxylate Ligand 
Chen Zi-yun; Peng Meng-xia 
2009 
Yes 
Chemical Research in Chinese Universities
ISSN: 1005-9040 
25 
6 
796-800 
WOS:000272832000004 
Two new lanthanide-pyridinetricarboxylic complexes formulated as [Lu(pyta)(H(2)O)(3)](1) and [La(pyta)(H(2)O)(2)]center dot 1.5H(2)O(2) were synthesized through hydrothermal reactions of LuCl(3) or La(NO(3))(3)center dot 6H(2)O with pyridine-2,4,6-tricarboxylic acid(H(3)pyta), respectively, and characterized by X-ray crystallography. Complex I crystallized in the monoclinic system with space group P2(1)/n, a=1.01930(12) nm, b=0.73423(9) nm, c=1.45449(17) nm, beta=94.734(2)degrees, V=1.0848(2) nm(3), Z=4. Complex 2 crystallized in the monoclinic system with space group P2(1)/c, a=0.68474(8) nm, b=1.20982(15) nm, c=1.36063(17) nm, beta=99.823(2)degrees, V=1.1106(2) nm(3), Z=4. The overall structure of complex 1 consists of 2D binuclear Lu(2)(pyta)(4)-based grid coordination layers which are further extended into a 3D supramolecular architecture via hydrogen bonding interactions. With different coordination modes of the pyta ligand, complex 2 is a 3D porous network comprised of La-carboxylate framework. 
Pyridine-2,4,6-tricarboxylic acid; Lu(III); La(III); Hydrothermal method