Ramzan, Shaista;
Rahim, Shahnaz;
Hussain, Syed Tasleem;
Holt, Katherine B;
Cockcroft, Jeremy Karl;
Muhammad, Niaz;
Ur‐Rehman, Zia;
... Shujah, Shaukat; + view all
(2023)
Synthesis, characterization, X-ray structure, DNA binding, antioxidant and docking study of new organotin(IV) complexes.
Applied Organometallic Chemistry
, 37
(8)
, Article e7161. 10.1002/aoc.7161.
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Abstract
Four new diorganotin(IV) complexes, including Me₂SnL(1), Bu₂SnL(2), Ph₂SnL(3) and Oct₂SnL(4), were synthesized by reacting R₂SnCl₂ (where R = Me, Bu, Ph, Oct) with N′-(3,5-dichloro-2-hydroxybenzylidene)-2-phenylacetohydrazide H₂L. The synthesized ligand and complexes were structurally characterized by various techniques, including Fourier transform infrared (FT-IR), ¹H and ¹³C nuclear magnetic resonance (NMR) and mass spectrometry. The data suggested that tin–oxygen and tin–nitrogen bonds are formed during complex formation, confirming the coordination of ligand with dialkyltin(IV) moieties and the presence of penta-coordinated structures. The single-crystal X-ray study was performed to confirm the molecular structure of complex 1, which revealed that the molecular structure is distorted towards square pyramidal geometry. The compound–DNA interaction was investigated via spectroscopic, electrochemical and molecular docking studies; the mode of interaction found in all cases was intercalative in nature. The complex 3 showed the highest binding ability with sodium salt of salmon sperm DNA (SS-DNA) (1.93 × 10⁵ M⁻¹). The data obtained for DNA interaction studies from theoretical calculation via docking studies match well with those observed from spectroscopic and electrochemical analyses. Electrochemical and thermodynamic parameters, including diffusion coefficient, ∆H, ∆G and ∆S, were also calculated. The DPPH antioxidant results showed that complex 2 is an active antioxidant.
| Type: | Article |
|---|---|
| Title: | Synthesis, characterization, X-ray structure, DNA binding, antioxidant and docking study of new organotin(IV) complexes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/aoc.7161 |
| Publisher version: | https://doi.org/10.1002/aoc.7161 |
| Language: | English |
| Additional information: | This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | diorganotin(IV) complexes, DNA binding, DPPH antioxidant activity, electrochemical assay, molecular docking |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10175800 |
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