Diaquabis(pyridine-2-carboxylato-κ²N,O)zinc dimethylformamide hemisolvate

Abstract

Diaquabis(pyridine-2-carboxylato-κ 2 N,O)zinc dimethylformamide hemisolvate Lilia Croitor, Diana Chisca, Eduard B. Coropceanu and Marina S. Fonari S1. Comment Polydentate ligands such as pyridine-2-carboxylic acid (Hpic=picolinic acid) play important role in coordination chemistry and homogeneous catalysis. The combination of pyridyl and carboxyl groups in a single bridge-type ligand results in highly interconnected networks and gives limitless possibilities for increased network stability (Udvardy et al., 2013; Groni et al., 2008; Golenya et al. 2011). The COOgroup and the nitrogen atom in Hpic have strong coordination abilities and multiple coordination modes (Ma et al., 2009). Herein, we report the crystal structure of the title compound. supporting information sup-7

Crystal growth, structural and spectroscopic characterization, antimicrobial activity, DNA cleavage, molecular docking and density functional theory calculations of Zn(II) complex with 2‐pyridinecarboxylic acid

“…The Zn─N pyridine , Zn─O picolinate and Zn─O aqua bond lengths were reported to be 2.118(2), 2.0769(19) and 2.157(2) Å, respectively, by Ghadermazi et al . and 2.134(4)–2.150(4), 2.104(3)– 2.094(3) and 2.078(4)– 2.101(4) Å, respectively, by Croitor et al . The C─C bond lengths for pyridine ring are found to be in the range 1.381(3)–1.390(3) Å, consistent with those reported by Seng et al .…”

“…A number of papers have reported the structural, spectroscopic and magnetic properties of metal–pyridinecarboxylate complexes using mostly experimental techniques and rarely quantum chemical models. The crystal structures for Zn(II) complexes of 2‐pyridinecarboxylate ligand have been previously reported, but investigations of Fourier transform infrared (FT‐IR), Raman and UV–visible spectra, natural bond orbital (NBO) and nonlinear optical analysis as well as antimicrobial properties, DNA binding and DNA cleavage studies for these complexes have been neglected so far. Considering that coordination with transition metal ions markedly improves biological and pharmaceutical activity as well as nonlinear optical properties of organic ligands, the above mentioned lack of studies becomes an unacceptable situation.…”

Bis(picolinato) complexes of vanadium and zinc as potential antidiabetic agents: synthesis, structural elucidation and in vitro insulin-mimetic activity study

“…Structure B with a cis arrangement was found in six entries where the neutral ligand L is imidazole, pyridine, 4-aminopyridine or phenanthroline and was found also in 6-8 and 12. 23,33 For each additional two cis spatial arrangements for the octahedral environment was reported only one example, cis-[Zn(pic) 2 (H 2 O) 2 ] 34 possesses the structure C and [Zn(bipyc) 2 (H 2 O) 2 ] 35 (Hbipyc = 4,4 0bipyridyl-2-carboxylic acid) possesses the structure D. For comparison, the pentacoordinated arrangement is less frequent with only eight reported structures. Out of these, five complexes [Zn(6Rpic) 2 (H 2 O)] (H6Rpic = 6-methylpicolinic acid and 6-ethylpicolinic acid), 32,36 [Zn(q2c) 2 (H 2 O)] (Hq2c = quinoline-2carboxylic acid), 37 [Zn(3apic) 2 (H 2 O)] (H3apic = 3-aminopicolinic acid) 38 .…”