A5009539141- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Crystallography and molecular interactions
- Metal-Catalyzed Oxygenation Mechanisms
- Metal-Organic Frameworks: Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Vanadium and Halogenation Chemistry
- Crystal structures of chemical compounds
- Polyoxometalates: Synthesis and Applications
- Lanthanide and Transition Metal Complexes
- Ferrocene Chemistry and Applications
- Catalytic Cross-Coupling Reactions
- Inorganic and Organometallic Chemistry
- Electrochemical Analysis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Asymmetric Hydrogenation and Catalysis
- Radioactive element chemistry and processing
- Catalytic C–H Functionalization Methods
- Thermal and Kinetic Analysis
- Organometallic Compounds Synthesis and Characterization
- Coordination Chemistry and Organometallics
- Electrocatalysts for Energy Conversion
- Inorganic Chemistry and Materials
University of Hyderabad
2014-2024
Boston College
1993-2004
Jadavpur University
2000
Indian Association for the Cultivation of Science
1990
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic Structure and Spectroscopy of Manganese Catalase Di-.mu.-oxo [MnIIIMnIV] Model ComplexesDaniel R. Gamelin, Martin L. Kirk, Timothy Stemmler, Samudranil Pal, William H. Armstrong, James E. Penner-Hahn, Edward I. SolomonCite this: J. Am. Chem. Soc. 1994, 116, 6, 2392–2399Publication Date (Print):March 1, 1994Publication History Published online1 May 2002Published inissue 1 March...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGround spin state variability in manganese oxo aggregates. Demonstration of an S = 3/2 ground for [Mn3O4(OH)(bpea)3](ClO4)3Samudranil Pal, Michael K. Chan, and William H. ArmstrongCite this: J. Am. Chem. Soc. 1992, 114, 16, 6398–6406Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/ja00042a016https://doi.org/10.1021/ja00042a016research-articleACS...
A series of ruthenium(II) complexes general formula [RuL2] with the pyridine-N, imine-N and amide-O donor N-(aroyl)-N′-(picolinylidene)hydrazines (HL) has been synthesized. The ligands differ on substituent at para position aroyl fragment. have characterized by analytical, 1H NMR, electronic absorption spectroscopy cyclic voltammetry. X-Ray structures representative determined. lowest energy MLCT (Ru(dπ) → L(π*)) transitions for these are observed essentially identical wavelength (544 ± 1...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA family of mononuclear manganese(IV) complexes: an MnIVO4N2 sphere assembled via phenolate-imine-carboxylate coordinationSwapan Kumar Chandra, Partha Basu, Debashis Ray, Samudranil Pal, and Animesh ChakravortyCite this: Inorg. Chem. 1990, 29, 13, 2423–2428Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published inissue 1 June...
The tetranuclear MnIV adamantane-like complex [Mn4O6(bpea)4](ClO4)4(1(ClO4)4) was isolated from a comproportionation reaction of Mn(ClO4)2·6H2O and [n-Bu4N][MnO4] with the ligand N,N-bis(2-pyridylmethyl)ethylamine (bpea) in acetonitrile. Characterization by X-ray crystallography reveals that [Mn4O6(bpea)4]4+ cation approaches S4 point symmetry. There are three distinct types Mn−N bonds two bridging oxo ligands 1. 1H NMR protonation studies 1 acetonitrile reveal each type bridge renders...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSyntheses, Structures, and Properties of [Mn2(.mu.-O)2(.mu.-O2CCH3)(fac-bpea)2](ClO4)2 Two Halide-Ligated Dioxo-Bridged Dimers Derived Therefrom: [Mn2(.mu.-O)2X2(mer-bpea)2](ClO4)2 (X = F, Cl)Samudranil Pal, Marilyn M. Olmstead, William H. ArmstrongCite this: Inorg. Chem. 1995, 34, 19, 4708–4715Publication Date (Print):September 1, 1995Publication History Published online1 May 2002Published inissue 1 September...
In methanol, the reaction of Mn(ClO(4))(2).6H(2)O and 1,2-bis(biacetylmonoximeimino)ethane (H(2)bamen) in presence triethylamine affords a trinuclear complex having formula [Mn(3)(mu(3)-O)(mu(3)-bamen)(3)]ClO(4).2H(2)O. The structure this shows symmetric planar central [Mn(III)(3)(mu(3)-O)] unit coordinated to three hexadentate bridging (via oximate groups) ligands. N(4)O(3) coordination sphere around each metal center is very close pentagonal-bipyramidal. A cyclic voltammogram displays two...
A dinuclear Ru(III) complex, [Ru2Cl2(PPh3)2(μ-Cl)2(μ-salhn)], has been synthesized and characterized by analytical, spectroscopic, magnetic, X-ray diffractometry. The redox active complex displays two reductions corresponding to RuIII2/RuIIIRuII RuIIIRuII/RuII2 couples. weak antiferromagnetic spin coupling is operative between the low-spin centers.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, structure, and properties of a [manganese] complex that consists an {Mn2O2(O2CCH3)}2+ core spanning hexadentate ligandSamudranil Pal, Joel W. Gohdes, Wolf Christian A. Wilisch, William H. ArmstrongCite this: Inorg. Chem. 1992, 31, 4, 713–716Publication Date (Print):February 1, 1992Publication History Published online1 May 2002Published inissue 1 February...
Abstract Two square‐planar ternary nickel(II) complexes [Ni(bhac)(phim)] ( 1 ) and [Ni(ahac)(phim)] 2 with O,N,O‐donor Schiff bases [acetylacetone benzoylhydrazone (H bhac) acetylacetone acetylhydrazone ahac)] sp N‐donor 2‐phenylimidazole (phim) as the ancillary ligand have been synthesised characterised by analytical, spectroscopic, magnetic electrochemical methods. The solid‐state structures of both determined X‐ray crystallography. asymmetric unit contains a single complex molecule while...
Abstract Syntheses, characterisation and properties of two complexes containing the oxovanadium(V) methoxide unit have been described. Deprotonated benzoylhydrazones 2–hydroxy–5–methoxy‐benzaldehyde (H2bhsOMe) 2–hydroxy–5–chlorobenzaldehyde (H2bhsCl) were used as coligands. Crystal structures both determined. In solid state one them is a dinuclear species [VO(bhsOMe)(OMe)]2 (1) whereas other mononuclear complex [VO(bhsCl)(OMe)(HOMe)](2). The dinegative ligands coordinate metal ions via...
Abstract Dark-brown complexes of {OV(μ-O)VO}4+ with the general formula [(VOL)2O] were isolated from reactions bis(acetylacetonato)oxovanadium(IV) and aroylhydrazones salicylaldehyde or 5-methoxysalicylaldehyde (H2L, two H stand for dissociable protons at phenol amide functionalities) in acetonitrile. The infrared spectra these are consistent dianionic form ligands. electronic spectral profiles very similar display strong absorptions range 425—263 nm due to ligand-to-metal charge transfer...
A series of dinuclear complexes Mn(III), Fe(III), and Co(III) with two diazine Schiff bases, H2salhn H2mesalhn, is reported. The bases are prepared by condensation reactions hydrazine salicylaldehyde (H2salhn) 2-hydroxyacetophenone (H2mesalhn) in 1:2 mol ratio. X-ray crystallographic characterization reveals triple helical structures [Co2(salhn)3], [Co2(mesalhn)3], [Fe2(mesalhn)3]. In each complex, three dinucleating O,N,N,O donor ligands provide (N−N) bridges between the metal ions facial...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProducts from reactions of manganese oxo complex [Mn2O2(O2CCH3)(tpen)]2+ in acidic and neutral aqueous media: [Mn2(.mu.-O)2(.mu.-O2CCH3)(tpen)]3+ [{Mn3(.mu.-O)4(OH)(tpen)}2(.mu.-tpen)]6+Samudranil Pal William H. ArmstrongCite this: Inorg. Chem. 1992, 31, 26, 5417–5423Publication Date (Print):December 1, 1992Publication History Published online1 May 2002Published inissue 1 December...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTManganese(IV) in discrete O3S3 coordinationSamudranil Pal, Phalguni Ghosh, and Animesh ChakravortyCite this: Inorg. Chem. 1985, 24, 22, 3704–3706Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Published inissue 1 October 1985https://pubs.acs.org/doi/10.1021/ic00216a047https://doi.org/10.1021/ic00216a047research-articleACS PublicationsRequest reuse permissionsArticle Views162Altmetric-Citations38LEARN ABOUT...