Crystal Structures and Photoluminescence Properties of Zinc(II) and Cadmium(II) Coordination Polymers with “Y”‐Shaped Ligands

Abstract

Abstract Three Zn II and Cd II complexes with Y‐shaped dicarboxylate ligands, namely [Zn(L 1 )(2,2′‐bpy) 2 (H 2 O)] · 2H 2 O ( 1 ), [Zn(L 1 )(bpp)(H 2 O)] ( 2 ), and [Cd(L 1 )(H 2 O)] · H 2 O ( 3 ) [H 2 L 1 = N‐phenyliminodiacetic acid, 2,2′‐bpy = 2,2′‐bipyridine, bpp = 1,3‐bis(4‐pyridyl)propane] were synthesized and characterized by elemental analysis, IR spectroscopy single‐crystal X‐ray diffraction, and thermogravimetric analyses. Compound 1 shows an hydrogen‐bonded 2D network, whereas compound 2 is an infinite 1D wavy chain structure, though O–H ··· O hydrogen‐bonded to form a 2D network. Compound 3 displays a 2D uninodal 3‐connected Shubnikov plane net with the point symbol of (4.8 2 ). Moreover, the solid‐state such as thermal stabilities and fluorescence properties of 1 – 3 were also investigated.