Poly[(μ₄-pyridine-2,3-dicarboxylato)lead(II)]

Abstract

In the title coordination polymer, [Pb(C7H3NO4)]n, the PbII ion is eight-coordinated in a distorted square-anti­prismatic geometry formed by one pyridine N atom and seven carboxyl­ate O atoms from four pyridine-2,3-dicarboxyl­ate (pda) anions. In the pda anion, the dihedral angles between the pyridine ring and carboxyl­ate groups are 19.5 (6) and 73.3 (6)°. The carboxyl­ate groups of the pda anions bridge the Pb ions, forming a two-dimensional coordination polymer parallel to (100). Weak inter­molecular C—H⋯O hydrogen boning is present in the crystal structure.

Colorimetric detection of Cd2+ using gold nanoparticles cofunctionalized with 6-mercaptonicotinic acid and l-Cysteine

“…Lush et al confirmed that Pb 2+ can formed eight-coordinated complexes with pyridine-2,3-dicarboxylate anions by one pyridine N atom and seven carboxylate O atoms. 37,38 As for Cu 2+ , there have been many reports about colorimetric detection of cysteine, making use of the strong binding ability of Cys to Cu 2+ . [39][40][41] However, from the results in our article, we can see that the introduction of L-Cys really improved the sensitivity for Cd 2+ determination.…”

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

“… Selected coordination modes of mono-deprotonated-2,3pydcH (top) and deprotonated-2,3pydc (bottom) forms of pyridine-2,3-dicarboxylic acid (2,3pydcH 2 ) in coordination with different metal ions reported in the literature [ 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ]. …”

“…We selected pyridine-2,3-dicarboxylic acid as the prolinker for this purpose. It belongs to the group of multidonating N,O-donor ligands, which can exist in a mono-or a fully deprotonated form, indicating the possibility of different coordination modes with metal ions [43][44][45][46][47][48][49][50][51][52][53][54][55] (Scheme 1).…”