Many aromatic carboxylate coordination compounds of rare earth have eximious photics

magnetics and catalysis properties in virtue of the structural multiformity. The 4f-3d hetero-metallic coordination polymers with particular structure mostly exist in dimer or multimer

and have latent application foreground at magnetism and luminescence materials. This paper aims to select α-furancarboxylic acid (HFur) and α-thiophenecar-(boxylic) acid (Htpca) with biggish conjugation system as ligands

1

10-phenanthroline (phen) as cooperative (ligand

) Zn

2+

ion as sensibilizer of Tb

3+

ion luminescence

to synthesize 4f-3d hetero-metallic coordination (polymers) in the nature of excellent luminescent performance and good dissolubility

to investigate the influence of crystal structure and coordination field on the spectrum character. The 1-dimension coordination polymers Tb(Fur)

3

(H

2

O)

2

·DMF and Tb

2

Zn(Fur)

8

(H

2

O)

2

and tetranuclear heterometallic complex Tb

2

Zn

2

-((tpca)

10

)(phen)

2

were prepared by the rheological phase reaction method. These complexes have good dissolubi(lity in water) and/or organic solvents

and emit very strong green luminescence under ultraviolet excitation. The crystal structures were characterized with single crystal and powder X-ray diffraction. The ultraviolet(visible) absorption and fluorescence spectra were measured. In these polymers the metallic atoms are linked by means of carboxylate groups (-CO

2

-

) with bidentate bridging and tridentate chelating-bridging

and the chain structures …Tb…Tb…

…Zn…Tb…Tb…Zn…Tb…Tb… and Zn…Tb…Tb…Zn were formed

respectively. The Tb

3+

ions are in 8-coordination

9-coordination and 7-coordination configuration

respectively. The average bond length of Tb-O are 0.239 5(4)

0.247 4(5) and 0.231 8(4) nm. It was revealed that Tb

3+

ion in the coordination polymers with 1-dimension chain structure could generate very strong direct (excited) emission; when Zn

2+

ion was inserted in …Tb…Tb… chain

the energy transfer between Tb

3+

ions was weakened but the energy transfer from ligand to rare earth ion was enhanced. In the coordination compound without bridging (or bridge-chain) structure between Tb

3+

ions

the direct excited emission of Tb

3+

ion can not occur. In addition

in the low symmetric and strong coordination field of 7-coordinate geometry

7

F

J

energy level of Tb

3+

arose greater split

but in the case of 8-and 9-coordination it not split or small split.