A5067403393- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Supramolecular Chemistry and Complexes
- Molecular Sensors and Ion Detection
- Metal-Organic Frameworks: Synthesis and Applications
- Luminescence and Fluorescent Materials
- Organometallic Complex Synthesis and Catalysis
- Porphyrin and Phthalocyanine Chemistry
- Metal complexes synthesis and properties
- Photochromic and Fluorescence Chemistry
- Magnetism in coordination complexes
- Asymmetric Hydrogenation and Catalysis
- Sulfur-Based Synthesis Techniques
- Carbon dioxide utilization in catalysis
- Supramolecular Self-Assembly in Materials
- Organic Light-Emitting Diodes Research
- Nonlinear Optical Materials Studies
- Analytical Chemistry and Sensors
- Glass properties and applications
- Organoboron and organosilicon chemistry
- Conducting polymers and applications
- Perovskite Materials and Applications
- biodegradable polymer synthesis and properties
- Boron Compounds in Chemistry
Vellore Institute of Technology University
2021-2023
Pondicherry University
2011-2019
Oxamidato-bridged Re(I)-based supramolecular rectangles with an ester functionality have been synthesized via orthogonal bonding approach under solvothermal conditions. Self-assembly of Re2(CO)10 and oxamide ligands (H2L1 = N,N′-dibutyloxamide, H2L2 N,N′-dioctyloxamide, H2L3 N,N′-didodecyloxamide, H2L4 N,N′-dibenzyloxamide) the pyridyl ligand phenyl-1,4-bis(isonicotinate) (pbin) has resulted in formation metallarectangles general formula [{(CO)3Re(μ-η4-L)Re(CO)3}2(μ-pbin)2] (1–4), wherein L...
Hetero-topic self-assembly of Re<sub>2</sub>(CO)<sub>10</sub> with oxamide ligands and ester-functionalised flexible ditopic-tectons afforded dinuclear metallacycles resembling a stirrup. The metallastirrups showed promising cytotoxic activity against few cancer cell lines <italic>in vitro</italic>.
Self-assembly of the selenium-bridged novel metallacyclophanes [{(CO)3Re(μ-SeR)2Re(CO)3}2(μ-L)2] (1–3) has been accomplished by treating diaryl diselenide with low-valent transition-metal carbonyl and rigid bidentate azine ligands under one-pot reaction conditions. The oxidative addition diphenyl/dibenzyl diselenides to Re2(CO)10 4,4′-bipyridine, trans-1,2-bis(4-pyridyl)ethylene, 1,4-bis[2-(4-pyridyl)ethenyl]benzene afforded tetranuclear metallacyclophanes. These compounds have characterized...
Abstract The self‐assembly of M 2 (CO) 10 (M = Mn, Re), oxamide ligands [H L N , N′ ‐dibutyloxamide (dbo), ‐dibenzyloxamide (dbno)], and flexible bidentate linkers [L′ 1,2‐bis(4‐pyridyl)ethane (bpe), 1,3‐bis(4‐pyridyl)propane (bpp)] afforded Mn I ‐ Re ‐based dinuclear metallacycles [(CO) 3 M(μ‐η 4 ‐L)(μ‐L′)M(CO) ] ( 1 – 6 ). oxidative addition to the equatorial sites dipyridyl axial facial metal tricarbonyl cores resulted in formation under one‐pot reaction conditions. Metallacycles were...
The design of portable devices by immobilization sensory probes using donor–acceptor (D–A) architectures enables the visual detection and onsite analysis volatile organic compounds (VOCs). In this work, we have reported on synthesis different D–A 2-thiohydantoin (2TH) derivatives extending conjugation with phenyl (Ph-2TH), naphthalene (Naptha-2TH), anthracene (Anthra-2TH) moieties at C5 position. Single-crystal X-ray reveals that leads to variation in molecular arrangement crystal lattice....
A new series of thiolato-bridged manganese(I)-based supramolecular rectangles have been achieved by three-precursor self-assembly Mn2(CO)10, diaryl disulfides (RSSR), and linear ditopic azine ligands (L) [L = pyrazine (pz), 4,4′-bipyridine (bpy), trans-1,2-bis(4-pyridyl)ethylene (bpe)] using a one-pot synthetic strategy. Oxidative addition RSSR (diphenyl disulfide p-tolyl disulfide) to manganese decacarbonyl in the presence rigid bidentate afforded metallarectangles general formula...
This review provides a detailed survey on the structural modifications of hydantoin (TH)/2-thiohydantoin (2TH) derivatives and understanding their photophysical properties, enabling potential use in optoelectronics prototypes.
A series of amidinate-based N,O-chelated magnesium complexes [(L1)2(THF)2Mg] (1), [(L2)2(THF)2Mg] (2), [(L3)2(THF)2Mg] (3), and [(L4)2Mg] (4) were prepared by treating N-benzoyl-N′-arylbenzamidines (L1–4H) with 0.5 equiv di-n-butylmagnesium in THF. Analogous CH3CN-coordinated [(L1)2(CH3CN)2Mg] (5) [(L3)2(CH3CN)2Mg] (6) a similar way using CH3CN as solvent. All the compounds characterized 1H/13C NMR spectroscopy, molecular structures 1, 2, 4–6 further confirmed single-crystal X-ray...
Tuning the π-conjugation and varying functional units can improve response behavior with superior sensitivity selectivity. Herein, we report on five novel donor–acceptor (D–A) molecular ensembles developed through C5 substitution 2-thiohydantoin (2TH) having different electron-donating groups. The structure–property relationships were investigated by single-crystal X-ray diffraction (SC-XRD) analysis, photophysical, electrochemical, computational studies. structural influence of 2TH...
We report herein, a novel method for the formation of highly stable BF3-induced J-aggregates by interaction between meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) and BF3O(C2H5)2. The aggregates were characterized NMR (1H, 11B 19F), optical absorption, cyclic voltammetry, FT-IR fluorescence spectroscopic techniques. TPPS4 readily forms 1 : 2 adduct with BF3 which further converts into whose properties strongly depend on concentration BF3. absorption spectrum shows J-type an apparent...
The synthesis of flexible rhenium(I)-based amide-functionalized chalcogen-bridged tetranuclear metallacycles general formula [{(CO)3Re(μ-ER)2Re(CO)3}2(μ-L)2] (1-8) was achieved by treating rhenium carbonyl with dialkyl/diaryl chalcogenide (RE-ER; E = S and Se) in the presence ditopic or semiflexible pyridyl ligand amide functionality (L N,N'-bis(4-pyridylcarboxamide)-1,2-ethane (bpce) N,N'-bis(4-(4-pyridylcarboxamide)phenyl)methane (bpcpm)). Compounds 1-8 were formed multicomponent...
A novel triphenylamine based push–pull fluorophore (TPA-2TH) bearing a 2-thiohydantoin unit for detection of toxic Hg 2+ ion and its live cell imaging in Zebrafish.
Oxidative addition of diaryldichalcogen ligands (REER) to ruthenium carbonyl (Ru3(CO)12) followed by the halogen (X2) afforded chalcogen-bridged Ru(II)-based metallacycles general formula [X(CO)3Ru(μ-ER)2Ru(CO)3X] (1–10), where E = S, Se, and Te; R phenyl, tolyl, benzyl; X Br I. Compounds 1–10 were characterized using IR, UV–vis, NMR spectroscopic techniques. Molecular structures have been elucidated single-crystal X-ray diffraction methods that confirm dimeric nature metallacycles, wherein...