Correlation of thermal and spectral properties of zinc(II) complexes of pyridinecarboxylic acids with their crystal structures

Interactions of insulin–mimetic zinc(II) complexes with cell constituents: Glutathione and ATP

“…In this bis complex, in contrast with the other insulin-mimetic bis complexes, most probably all the coordination sites are occupied by the tridentate (O,N,O) coordination of two dipic ligands. Tridentate coordination mode was proved by X-ray structure in the case of [ZnA 2 H 2 ] complex [26] and the coordination of the carboxylates by IR for Na 2 [ZnA 2 ] [27]. UV spectra were recorded also for the zinc(II)-dipic system and stability constants calculated from the spectra are collected in Table 1, these values correspond well to the data obtained by pH-potentiometry.…”

Synthesis, spectroscopic, thermal, crystal characterization and biological activity of [Ni(phen)3][Ni(dipic)2]2.17H2O (H2dipic:pyridine-2,6-dicarboxylic acid, phen: 1,10-phenanthroline)

“…These values were assigned to the following d-d transitions; 3 A 2g ĺ 3 T 1g (P) , 3 A 2g ĺ 3 T 1g and 3 A 2g ĺ 3 T 2g , respectively.…”

“…H 2 dipic is used in a variety of processes as an enzyme inhibitor, plant preservative, food sanitizer [2]. Recent investigations of the H 2 dipic exhibit that this acid prevents the oxidation of low density lipoprotein [3]. 2,6-Pyridinedicarboxylic acid (H 2 dipic) and its anions (Hdipic -, dipic 2-) have proved to be well suited for the construction of multidimensional frameworks, due to the presence of two adjacent O atoms of *Corresponding author.…”

Synthesis and Crystal Structures of Zn(II)- and Cd(II) - Isonicotinate Complexes

“…12 The separation (Δ) between ν asym (CO 2 ) and ν sym (CO 2 ) is 173 cm −1 for 1 and 157 cm −1 for 2, respectively. This value is similar to the observed values (170±10 cm …”