A5078644594- Photochromic and Fluorescence Chemistry
- Photochemistry and Electron Transfer Studies
- Free Radicals and Antioxidants
- Ferrocene Chemistry and Applications
- Electron Spin Resonance Studies
- Parasites and Host Interactions
- Advanced biosensing and bioanalysis techniques
- Supramolecular Self-Assembly in Materials
- Photoreceptor and optogenetics research
- Spectroscopy and Quantum Chemical Studies
- X-ray Diffraction in Crystallography
- Helminth infection and control
- Trypanosoma species research and implications
- Peptidase Inhibition and Analysis
- Molecular Sensors and Ion Detection
- Click Chemistry and Applications
- Porphyrin and Phthalocyanine Chemistry
- Luminescence and Fluorescent Materials
- Redox biology and oxidative stress
- Metal complexes synthesis and properties
- Parasitic Diseases Research and Treatment
- Advanced Chemical Physics Studies
- Crystallization and Solubility Studies
Indian Institute of Science Education and Research Mohali
2020-2022
University of Zurich
2017-2021
Ruhr University Bochum
2012-2014
Indian Association for the Cultivation of Science
2008
The phenoxyl radical 1 was generated in high yields by flash vacuum pyrolysis of allyl phenyl ether 2 with subsequent trapping the products argon at 3 K. In water-doped matrices, an OH···O complex between and water is formed that could be characterized IR spectroscopy. Several isotopomers were generated, spectra compared to results density functional theory calculations. Other dimers not found under these conditions. QM/MM calculations simulated matrices reveal OH···π unstable even a time...
Schistosomiasis is a parasitic disease that affects more than 250 million people annually, mostly children in poor, tropical, rural areas. Only one treatment (praziquantel) available, putting control efforts at risk should resistance occur. In pursuit of alternatives, we derivatized an old antischistosomal agent, oxamniquine (OXA). Four organometallic derivatives OXA were synthesized and tested against Schistosoma mansoni vitro vivo. Of these, ferrocenyl derivative, 1, killed larval adult...
In the fight against cancer, photodynamic therapy is generating great interest thanks to its ability selectively kill cancer cells without harming healthy tissues. this field, ruthenium(II) polypyridyl complexes, and more specifically, complexes with dipyrido[3,2-a:2',3'-c]phenazine (dppz) as a ligand are of particular due their DNA-binding photocleaving properties. However, can sometimes suffer from low lipophilicity, which hampers cellular internalisation through passive diffusion. study,...
Abstract The interactions of the benzyl radical ( 1) , anilinyl 2) and phenoxyl 3) with water are investigated using density functional theory (DFT). In addition, we report dispersion‐corrected DFT‐D molecular dynamics simulations on these three systems a matrix isolation study 1 –water. radicals – 3 form an interesting series number lone pairs increasing from none to two. can act as Lewis base through their unpaired electrons, heteroatoms, or doubly occupied π orbitals aromatic system....
The benzyl radical (1) is a key intermediate in the combustion and tropospheric oxidation of toluene. Because its relevance, reaction 1 with molecular oxygen was investigated by matrix-isolation IR EPR spectroscopy as well computational methods. primary product O2 benzylperoxyl (2), which exists several conformers that can easily interconvert even at cryogenic temperatures. Photolysis 2 365 nm results formal [1,3]-H migration subsequent cleavage O-O bond to produce hydrogen-bonded complex...
Abstract Light‐responsive molecular systems with multiple photoswitches in C 3 ‐ symmetric designs have enormous application potential. The design part of such is critical due to its influence several properties associated the photoswitches. In order tune, and evaluation design–property relationship, we synthesized 18 tripodal variations core, linkers, connectivity, azo(hetero)arene Through extensive spectroscopic computational studies, envisaged factors controlling near‐quantitative...
A proof-of-concept on temporal control in the tritylation reactions has been demonstrated using a designed tripodal triazole-linked azo(hetero)arene-based photoswitchable catalyst.
Two tripodal C3 -symmetric photoswitchable molecular systems T1 and T2 are reported that have extended conjugation at external internal positions using an acryl group. The influence of the π-bonds in their absorption properties, thermal relaxation photoisomers propensities forming supramolecular self-assemblies been explored through spectroscopy, microscopic studies. In particular, investigations on self-assembly carried out scanning electron microscopy (SEM), transmission (TEM), polarized...
Using the pioneering concept developed by Jaouen, Brocard, and co-workers on replacement of an organic moiety a known drug ferrocenyl unit, we organometallic-containing peptides as inhibitors dual-specificity phosphatases, cell division cycle 25 (CDC25). More precisely, designed prepared first CDC25 based lead structure pentapeptide inhibitor. Extensive (bio)chemical studies were then undertaken. We determined that ferrocene- CpMn(CO)3-containing compounds unstable in aqueous media, while...