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With the Zn-Schiff-base [ZnL 1 (Py)] or [ZnL 2 (Py)] from the simple Salen-type Schiff-base ligand H 2 L 1 or H 2 L 2 (H 2 L 1 : N,N 0 -bis(salicylidene)ethylene-1,2-diamine; H 2 L 2 : N,N 0bis(salicylidene)phenylene-1,2-diamine) without the outer O 2 O 2 portion as the precursor, two series of eight trinuclear Zn 2 Ln arrayed complexes (Ln = Nd (1 or 5), Yb (2 or 6), Er (3 or 7) or Gd (4 or 8)) have been obtained by the further reaction with Ln(NO 3 ) 3 Á6H 2 O, respectively. The results of photophysical studies show that the strong and characteristic NIR luminescence with emissive lifetimes in microsecond ranges, has been sensitized from the excited state ( 1 LC and 3 LC or only 1 LC) of the ligand, whereas the Zn(II)-based visible luminescence is mostly quenched because of quite effective intramolecular energy transfer from the ligand-centered excited state of the Zn(II)-Schiff base complex to Ln(III) ions.

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