A comparison of structural and luminescence properties of lead(II) coordination polymers with isomeric thiophenecarboxylate ligands

Synthesis, Structure, and Spectroscopic Properties of Calcium Thiophenecarboxylate Polymers. Structural Comparison with Analogous Lead Complexes

“…Summary of structural comparison of the calcium and lead [11,12] Polyhedra and coordination modes of the ligands observed in the prepared calcium coordination polymers and lead analogues. [11,12] the other hand, we can observe identical coordination of thiophene-2-carboxylate to both ions (Ca(II) and Pb(II)), as well as some similarities in the case of the thiophene-3-carboxylate coordination modes. In fact, in the structures of the [Ca-(2tpCOO) 2 (2mpa)(H 2 O)] n (1) and [Pb(2tpCOO) 2 ] n , [11] the thiophene-2-carboxylate exhibits identical coordination modes chelating and chelating-bridging (Table 1), also resulting in the same type of polymer topology (4,4)(0,2).…”

“…An important factor in the choice of heteroaromatic carboxylate linkers was the ability to obtain complexes with luminescent properties, for the purpose of imaging the dynamics of calcium ions in biological systems [9,10] . Furthermore, for the purpose of performing a structural comparative analysis, the choice of ligands was conditioned by our previous studies on the synthesis of lead(II) coordination polymers with aforementioned linkers [11,12] . To achieve the following goals, three novel calcium coordination polymers [Ca(2tpCOO) 2 (2mpa)(H 2 O)] n ( 1 ), [Ca(3tpCOO) 2 (2mpa)(H 2 O)] n ( 2 ), and {[Ca(3tpacCOO) 2 (H 2 O) 2 ] ⋅ H 2 O} n ( 3 ) were prepared using thiophenecarboxylate ligands.…”

Determination of lead ions in fish and oyster samples using a nano-adsorbent of functionalized magnetic graphene oxide nanosheets-humic acid and the flame atomic absorption technique

“…As it is known, lead has been used since long and has played a key role in human life. So far, different methods and complex agents have been devised to collect and measure lead ions, but most of them have failed to be professional and practical enough; consequently, they have not appropriate application for real samples (Deshmukh et al, 2018;Kowalik et al, 2018;Mohammadi et al, 2016).…”

Structural Insights into New Bi(III) Coordination Polymers with Pyridine-2,3-Dicarboxylic Acid: Photoluminescence Properties and Anti-Helicobacter pylori Activity

“…It is a great challenge to obtain proper functional materials because the properties of coordination compounds depend on the type of both metal ions and connecting ligands. Our interest in this field concerns the chemistry of lead(II) [ 10 , 11 , 12 , 13 , 14 ] and bismuth(III) coordination polymers with heteroaromatic carboxylate ligands. When selecting a central ion, we focused on the multiple applications of Bi(III) compounds as, for example, photoluminescent materials [ 15 , 16 , 17 ], catalysts [ 18 ], medical drugs for gastrointestinal disorders caused by Helicobacter pylori or anticancer agents [ 19 , 20 , 21 , 22 ].…”

“…Considering all of the above aspects of interesting bismuth chemistry, herein, we present the synthesis and characterization of new Bi(III) metal-organic coordination polymers. Taking into consideration our previous experience in the construction of CPs based on Pb(II) ions [ 10 , 11 , 12 , 13 , 14 ], we paid special attention to the choice of a proper organic linker. We selected pyridine-2,3-dicarboxylic acid as the prolinker for this purpose.…”