Abstract
The new rigid planar ligand 2,5-bis(3-(pyridine-4-yl)phenyl)thiazolo[5,4-d]thiazole (BPPT) has been synthesized, which is an excellent building block for assembling coordination polymer. Under solvothermal reaction conditions, cadmium ion with BPPT in the presence of various carboxylic acids including (1,1′-biphenyl)-4,4′-dicarboxylic acid (BPDC), isophthalic acid (IP), and benzene-1,3,5-tricarboxylic acid (BTC) gave rise to three coordination complexes, viz, [Cd(BPPT)(BPDA)](BPPT)n (1), [Cd(BPPT) (IP)] (CH3OH) (2), and [Cd3(BPPT)3(BTC)2(H2O)2] (3). The structures of 1, 2, and 3 were characterized by single crystal X-ray diffraction. The IR spectra as well as thermogravimetric and luminescence properties were also investigated. Complex 1 is a two-dimensional (2D) network and further stretched to a 3D supramolecular structure through π–π stacking interaction. The complexes 2 and 3 show 3D framework. The complexes 1, 2, and 3 exhibited luminescence property at room temperature.
Highlights
The Cd(II) ions are assembled via bridging carboxylate oxygen atoms in a 2D plane, and these planes are further interconnected by the BPPT ligand, giving rise to a 3D
Topological analysis through the olex, the isophthalic acid (IP) ligands, and BPPT ligands are considered as linkers, the 3D structure can be classified as a 5-connected network with (4.84 )(4.64 .84 .10) topology (Figure 2d)
Complexes 1, 2, and 3 exhibit luminescence properties. We hope that this new BPPT ligand can obtain more novel structures
Summary
In the last twenty years, the design and synthesis of new coordination polymers (CPs) have become an important research area for their intriguing structures and interesting properties, such as catalysis [1,2,3,4,5,6], gas storage and separation [7,8,9], photoluminescence [10,11,12], biomedical uses [13], and other applications [14,15,16]. The luminescence properties of coordination polymers with d 10 metal centres Cd(II) have attracted intense interest because of the potential applications of these compolexes as luminescent sensing materials [20].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
