LAUSR

Two series of coordinated compounds [Ln 2 (TZI) 2 (H 2 O) 10 ] n ·4H 2 O (Ln = Er ( 1 ), Yb ( 2 ), Dy( 3 ), (H 3 TZI = 5-(1H-tetrazol-5-yl)isophthalic acid) and [Ln(TZI)(H 2 O) 4 ] n ·3H 2 O (Ln = Ho ( 4 ), Eu( 5 ) and Sm ( 6 )) were hydrothermally synthesized by different reaction conditions. Compounds 1–3 are isostructural and show a dinuclear motif, which further develop into a 3D H-bonding supra-molecular structure, and compounds 4 – 6 are also isostructural and have a 1D ladder-typed chain, which further interlinked into a 3D supra-molecular architecture by H-bonding interactions. Furthermore, the fluorescent properties of compounds 3 – 6 exhibit intense emissions corresponding to blue-violet ( 3 and 4 ), red ( 5 ) and orange red ( 6 ), respectively. By way of the careful regulation of the relative intensity of the blue-violet ( 4 ), green (Tb) and orange red ( 6 ) emissions, a novel three-component white-light emission (Ho–Sm–Tb) has been realized.