Swaraj Sengupta

ORCID: 0000-0001-6967-858X
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Metal complexes synthesis and properties
  • Electrocatalysts for Energy Conversion
  • Electrochemical Analysis and Applications
  • Crystallography and molecular interactions
  • Molecular Sensors and Ion Detection
  • Magnetism in coordination complexes
  • Metal-Catalyzed Oxygenation Mechanisms
  • Advanced oxidation water treatment
  • Advanced battery technologies research
  • Synthesis and Biological Evaluation
  • Synthesis and Characterization of Heterocyclic Compounds
  • CO2 Reduction Techniques and Catalysts
  • Microbial Metabolic Engineering and Bioproduction
  • Synthesis and biological activity
  • Biofuel production and bioconversion
  • Polymer Nanocomposite Synthesis and Irradiation
  • Polymer Nanocomposites and Properties
  • Polyoxometalates: Synthesis and Applications
  • Amino Acid Enzymes and Metabolism
  • Electromagnetic wave absorption materials
  • Free Radicals and Antioxidants
  • GABA and Rice Research
  • Probiotics and Fermented Foods

Birla Institute of Technology, Mesra
2016-2025

Indian Institute of Engineering Science and Technology, Shibpur
2016-2024

Ranchi University
2016-2019

The present work describes electrocatalytic water oxidation of three monomeric copper complexes [CuII(L1)] (1), [CuII(L2)(H2O)] (2), and [CuII(L3)] (3) with bis-amide tetradentate ligands: L1 = N,N′-(1,2-phenylene)dipicolinamide, L2 N,N′-(4,5-dimethyl-1,2-phenylene)bis(pyrazine-2-carboxamide), L3 N,N′-(1,2-phenylene)bis(pyrazine-2-carboxamide), for the production molecular oxygen by at pH 13.0. Ligands all have been synthesized characterized single crystal XRD, analytical, spectroscopic...

10.1021/acs.inorgchem.3c03512 article EN Inorganic Chemistry 2024-01-17

The main objective of the present study was to investigate influence graphene nanoplatelets (GnPs), Titanium dioxide (TiO 2 ), and its hybrid filler on mechanical, thermal, morphological characteristics polypropylene (PP) based composites for structural applications. PP-based were prepared using a twin-screw extruder different compositions then molded into tensile specimens with mini-jet injection molding setup. Tensile, analyses performed determine capability composites. results showed that...

10.1177/09673911241260160 article EN cc-by-nc Polymers and Polymer Composites 2024-01-01

Two high spin Fe(III) complexes, [Fe(L1)2]Cl·H2O (1) and [Fe(L2)2]Cl ·4H2O·0.5MeOH (2), of Schiff base ligands aminoguanidine with salicylaldehyde pyridoxal (isolated as the hydrochloride salts L1H2+Cl− L2H32+Cl−2 respectively) are reported. X‐ray crystal structure both complexes along their spectroscopic variable temperature magnetic properties also investigated. It is found that complex 2 shows stronger zero field splitting (D = 9.5 cm−1) than 1 5.5 cm−1), probably due to greater...

10.1002/ejic.202400537 article EN European Journal of Inorganic Chemistry 2025-01-27

Current study reports electrocatalytic water oxidation by mononuclear bis-terpyridine Co(II) complexes of general formula [CoL1-42]X2 (where L1 = 4'-phenyl-2,2':6',2''-terpyridine,L2=4'-(3,4-dimethoxyphenyl)-2,2':6',2''-terpyridine,L3=4'-(3,4,5-trimethoxyphenyl)-2,2':6',2''-terpyridine, L4=4'-(4-fluorophenyl)-2,2':6',2''-terpyridine and X ClO4-/Cl-). All the have been fully...

10.1039/d4nj05517a article EN New Journal of Chemistry 2025-01-01

In this work, three titanium(IV) [TiIV(L1–3)2] (1–3) complexes have been reported using different tridentate dibasic ONO donor hydrazone ligands, pyridine-4-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)-hydrazide (H2L1), furan-2-carboxylic (H2L2), and thiophene-2-carboxylic (H2L3) tethered with heterocyclic moieties. Elemental analysis, FT-IR, UV–vis, NMR, HR-ESI-MS, single-crystal X-ray analysis used to characterize H2L1–3 1–3. solid structures of 1–3, two ligand molecules N2O4 sets give...

10.1021/acsabm.3c00629 article EN ACS Applied Bio Materials 2023-11-29

Two new complexes, [MnL2](ClO4) (1) and [CuL2] (2) (where LH = (E)-1-((3-(dimethylamino)propylimino)methyl)naphthalen-2-ol), have been synthesized characterized by spectroscopic techniques their molecular structures are established single-crystal X-ray diffraction study. Complex 1 adopts an octahedral geometry around the central manganese atom which is in + 3 oxidation state, whereas complex 2, Cu+2 ion preferred a square pyramidal environment it through ligand donor atoms. Both complexes...

10.1080/00958972.2018.1453065 article EN Journal of Coordination Chemistry 2018-03-15

Three monomeric ruthenium complexes with anionic ligands [RuII(L)(L1)(DMSO)][ClO4] (1), [RuII(L)(L2)(DMSO)] [PF6] (2), and [RuII(L)(L3)(DMSO)][PF6] (3) [L = pyrazine carboxylate, L1 2,6-bis(1H-benzo[d]imidazol-2-yl)pyridine, L2 4,5-dmbimpy 2,6-bis(5,6-dimethyl-1H-benzo[d]imidazol-2-yl)pyridine, L3 4-Fbimpy 2,6-bis(5-fluoro-1H-benzo[d]imidazol-2-yl)pyridine, DMSO dimethyl sulfoxide] as electrocatalysts for water oxidation are reported herein. The single crystal X-ray structure of the reveals...

10.1039/d3dt00128h article EN Dalton Transactions 2023-01-01

<title>Abstract</title> Biobutanol, a promising biofuel with superior properties compared to ethanol, has garnered significant attention as an alternative traditional fossil fuels. In the present study pretreatment of rice husk deep euectic solvent using choline chloride and urea (ChCl/U) was investigated for production biobutanol. DES enzymatic hydrolysis yielded 30 ± 0.54 mg/ml reducing sugar. This also investigates synergistic potential co-culturing <italic>Bacillus cereus</italic>...

10.21203/rs.3.rs-4244839/v1 preprint EN cc-by Research Square (Research Square) 2024-05-15

Abstract A pentadentate diamide ligand, N,N′‐di(pyridine‐2‐yl)pyridine‐2,6‐dicarboxamide (L 1 H 2 ) and its tetranuclear Cu(II) complex [Cu 4 (μ 3 ‐OH) (H O) (ClO )](ClO ⋅ O are reported. X‐ray crystal structure of the reveals that it has an open‐book type architecture. Two central copper atoms connected to each other by two hydroxo bridges. Each these bridges also connects one terminal atoms. Variable temperature susceptibility measurements show χ M T decreases with temperature, indicating...

10.1002/slct.202401415 article EN ChemistrySelect 2024-09-01
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