LAUSR

Abstract Four Cd/Zn coordination frameworks, namely, [Cd(TPBA-4)(NO 3 ) 2 ]·2DMF·1.22H 2 O ( 1 ), [Cd(TPBA-4)(NO 3 ) 2 ]·H 2 O ( 2 ), [Cd(TPBA-4)(NO 3 ) 2 ]·2.2Me 2 CO·0.32H 2 O ( 3 ), and [Zn(TPBA-4)(NO 3 ) 2 ]·1.5Me 2 CO ( 4 ) were synthesized by the reaction of N′,N″,N‴-tris(pyrid-4-ylmethyl)-1,3,5-benzenetricarboxamide (TPBA-4) with the corresponding d 10 metal salts. X-ray diffraction analysis revealed that complex 1 was of two-fold interpenetrated 2D network with interlocked cage-like motif. The structure of 2 is three-fold interpenetrated 2D honeycomb network. On the other hand, the 3 and 4 are isomorphous and isostructural, and have different 2D networks compared to 1 and 2 . Thus the series of complexes have the same metal atoms and ligands but different structures. In complex 1 , 2 , 3 , and 4 , the flexible TPBA-4 ligands are versatile and adopt different conformations according to different reaction conditions, which predominates the final structures of these complexes. The physical properties of these complexes were also investigated.