Syntheses, Structures, Thermal and Luminescent Properties of Two Interpenetrating Coordination Polymers Constructed by 2,5‐Thiophenedicarboxylate and Different Dipyridyl Ligands

Two coordination polymers with three‐dimensional (3D) architectures, formulated as {[Zn 2 (H 2 O)(2,5‐tdc) 2 (bpa) 2 ] · H 2 O} n ( 1 ) and [Zn 2 (2,5‐tdc) 2 (dpbd)] n ( 2 ) [2,5‐H 2 tdc = 2,5‐thiophenedicarboxylic acid, bpa = 1,2‐bis(4‐pyridyl)‐ethane, and dpbd = 1,4‐bis(4‐pyridyl)‐1,3‐butadiene] were synthesized from the hydrothermal reactions of Zn(NO 3 ) 2 · 6H 2 O, 2,5‐H 2 tdc, and bpa or dpbd, respectively. The two complexes were characterized by IR, elemental analysis, powder X‐ray diffraction, and single‐crystal X‐ray diffraction. 1 exhibits a fivefold interpenetrating diamondoid framework with two types of 4‐connecting nodes. The structure of 2 shows a threefold interpenetrating pcu net. Thermal stability and photoluminescent properties of 1 and 2 were also investigated.