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Synthesis, Characterization, and BSA-Binding Studies of Novel Sulfonated Zinc-Triazine Complexes.

ABSTRACT: Four Zn(II) complexes containing a pyridyl triazine core (L1?=?3-(2-pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5',5?-disulfonic acid disodium salt and L2?=?3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine-4',4?-disulfonic acid sodium salt) were synthesized, and their chemical formulas were finalized as [Zn(L1)Cl2]·5H2O·ZnCl2 (1), [Zn(L1)2Cl2]·4H2O·2CH3OH (2), [Zn(L2)Cl2]·3H2O·CH3OH (3), and [Zn(L2)2Cl2] (4). The synthesized complexes are water soluble, making them good candidates for biological applications. All four complexes have been characterized by elemental analysis and 1H NMR, IR, and UV-Vis spectroscopy. The IR stretching frequency of N=N and C=N bonds of complexes 1-4 have shifted to lower frequencies in comparison with free ligands, and a bathochromic shift was observed in UV-Vis spectra of all four complexes. The binding studies of ligands and complexes 1-4 with bovine serum albumin (BSA) resulted binding constants (Kb) of 3.09?×?104?M-1, 12.30?×?104?M-1, and 16.84?×?104?M-1 for ferene, complex 1, and complex 2, respectively, indicating potent serum distribution via albumins.

SUBMITTER: Abeydeera N 

PROVIDER: S-EPMC5835287 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Synthesis, Characterization, and BSA-Binding Studies of Novel Sulfonated Zinc-Triazine Complexes.

Abeydeera Nalin N   Perera Inoka C IC   Perera Theshini T  

Bioinorganic chemistry and applications 20180218

Four Zn(II) complexes containing a pyridyl triazine core (<i>L</i>1 = 3-(2-pyridyl)-5,6-di(2-furyl)-1,2,4-triazine-5',5″-disulfonic acid disodium salt and <i>L</i>2 = 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine-4',4″-disulfonic acid sodium salt) were synthesized, and their chemical formulas were finalized as [Zn(L1)Cl<sub>2</sub>]·5H<sub>2</sub>O·ZnCl<sub>2</sub> (<b>1</b>), [Zn(L1)<sub>2</sub>Cl<sub>2</sub>]·4H<sub>2</sub>O·2CH<sub>3</sub>OH (<b>2</b>), [Zn(L2)Cl<sub>2</sub>]·3H<sub>2</sub>O·CH<s  ...[more]

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