K Kumar Inorganic Chemistry Pdf Download
Jalisa Landgren
Her expertise is layered double hydroxides, battery materials, perovskites, zeolites, electrochemistry, thermochemistry, Li extraction, and recycling battery materials. Experience in designing sorbents for Lithium extraction. Hands-on experience in structural analysis (XRD, FTIR, Raman, and SEM/EDS), analytical methods (ICP OES and ICP MS), thermal analysis (DSC, TGA, and DTA), Calorimetry (room temperature calorimetry, high-temperature melt solution calorimetry), electrochemical methods (CV, EIS and, battery testing protocols).
Sanat K. Kumar creates, analyzes, and models new classes of polymer-based materials with improved properties. A particular focus is on hybrid materials (polymer with inorganic filler) with relevance to biomimicry, and energy storage and conversion.
Screening of synthetic and natural products and evaluations as modulators to clinically important enzyme targets. We are interested in how enzyme activities and structure changes occur on binding to small molecules. Our focus is on novel modulators, which could be activators or inhibitors using a combination of enzyme kinetics, computational chemistry, and molecular designing.
Singh was a postdoctoral fellow at Aston University with W. R. McWhinnie. In 1982, he joined IIT faculty as an assistant professor of chemistry. He was promoted to associate professor in 1995 and to Professor in 2000. He has coauthored over 200 accepted academic publications. He is known for his involvement in the development of organochalcogen ligand family and their metal complexes for promoting C-C coupling reactions and related transformations.[3][4] As of 2015, he served as an editorial member for the academic journal, RSC Advances.[5]
Abstract: The biological applications of germylenes remain an unconceivabledomain owing to their unstable nature. We report the isolation of air, water,and culture-medium stable germylene DPMGeOH (3) and its potential biological application (DPM = dipyrrometheneligand). Compound 3 exhibitsantiproliferative effects comparable to that of cisplatin in human cancercells. The cytotoxicity of compound 3 onnormal epithelial cells is minimal and is similar to that of the currently usedanti-cancer drugs. These findings provide a framework for a plethora ofbiological studies using germylenes and have important implications forlow-valent main group chemistry.
The first which one faces even before opening the book to study inorganic chemistry is what is inorganic chemistry? and simplest answer of it which one may think is the word inorganic is the antonym of the term organic and study of any compound, not covered under the definition of organic compounds, is done under inorganic chemistry. term organic was proposed by Berzelius for the compounds having their origin from a living source but now the term is being used in a broader sense. organic compounds have principally maximum coordination number equal to four while in inorganic compounds it may be higher up to 12 or even more.
Amit completed his Integrated M.Sc. Chemistry (2007-2012) from the Indian Institute of Technology Roorkee where he was awarded the Institute Silver Medal for academic excellence and won several fellowships/research awards by DAAD, IIT-ParisTech, KVPY and INSPIRE (Govt of India) and Indian Academy of Science. He then won a Rhodes Scholarship for his DPhil research at the University of Oxford (Balliol College). During his DPhil (2012-2016) he worked under the guidance of Prof. Andrew Weller in the area of synthetic organometallic chemistry and developed rhodium and iridium catalysts for the dehydrocoupling of amine-boranes. After completing his DPhil studies, Dr. Kumar was awarded the PBC (Planning and Budgeting Committee, Israel, 2016-2019) fellowship to work with Prof. David Milstein at the Weizmann Institute of Science, Israel where he was promoted to be the Senior Postdoc Fellow in 2019. In the Milstein research group Dr. Kumar developed new pincer catalysts for small molecule activation and for the development of green and sustainable homogeneous catalysis based on dehydrogenation and hydrogenation reactions. Amit was awarded the FGS (Feinberg Graduate School) Prize for the outstanding achievements in postdoctoral research 2018 by the Weizmann Institute of Science, Israel. Amit started his independent academic career in Jan 2020 as a Leverhulme Trust Early Career Fellow at the School of Chemistry, University of St. Andrews. Since Aug 2022 he is working as a UKRI Future Leaders Fellow in the areas of homogeneous catalysis, polymer chemistry, and circular economy.
Dr. Krishna K. Damodaran (a.k.a. D. Krishna Kumar) joined the Department of chemistry in 2013, where he is currently Professor of Inorganic Chemistry. He served as the Head of Chemistry from 2018 till 2022.
Dr. Krishnas research contribution to date have been within the area of Supramolecular and Inorganic chemistry. Our group is developing supramolecular gels as reaction and crystalizing media and also evaluating the potential applications of coordination compounds in sorption studies, anion recognition, catalysis and as anticancer agents.
A model that makes use of the cooperative organization of inorganic and organic molecular species into three dimensionally structured arrays is generalized for the synthesis of nanocomposite materials. In this model, the properties and structure of a system are determined by dynamic interplay among ion-pair inorganic and organic species, so that different phases can be readily obtained through small variations of controllable synthesis parameters, including mixture composition and temperature. Nucleation, growth, and phase transitions may be directed by the charge density, coordination, and steric requirements of the inorganic and organic species at the interface and not necessarily by a preformed structure. A specific example is presented in which organic molecules in the presence of multiply charged silicate oligomers self-assemble into silicatropic liquid crystals. The organization of these silicate-surfactant mesophases is investigated with and without interfacial silicate condensation to separate the effects of self-assembly from the kinetics of silicate polymerization.
We work in the field of theoretical and computational chemistry, employing full quantum mechanical methods such as density functional theory (DFT) to understand processes occurring in Inorganic systems. The effective means for small molecule activation using inorganic complexes, new insights into mechanisms for organometallic catalysts, and the design of new systems that can exhibit metal-ligand cooperativity are some of the problems that we are currently interested in finding answers to. Our group also does work in developing methods for doing effective stochastic simulations of chemical systems. We also started Ab Initio molecular dynamics with the help of newly developed nanoreactor approach!!
Our group's research interests intersect the boundaries between chemistry, biology and medicine leading to a diverse range of research projects at the forefront of medicinal chemistry and antimicrobial biomaterials. The research multidisciplinary in nature and involves a combination of synthetic organic chemistry, molecular modelling, analytical chemistry, surface characterisation and biological screening.
In addition, the unsolved problem of CO2 activation continues to inspire us and has prompted another facet of our research program: metal-catalyzed CO2 activation reactions. As with our Ni-catalyzed cycloaddition chemistry, we seek to answer underlying, fundamental questions of what factors are important in reactions involving M-CO2 complexes.
N2 - The known iron(II) complex [FeII(LN3S)(OTf)] (1) was used as starting material to prepare the new biomimetic (N 4S(thiolate)) iron(II) complexes [FeII(LN 3S)(py)](OTf) (2) and [FeII(LN3S)(DMAP)](OTf) (3), where LN3S is a tetradentate bis(imino)pyridine (BIP) derivative with a covalently tethered phenylthiolate donor. These complexes were characterized by X-ray crystallography, ultraviolet-visible (UV-vis) spectroscopic analysis, 1H nuclear magnetic resonance (NMR), and Mössbauer spectroscopy, as well as electrochemistry. A nickel(II) analogue, [NiII(LN3S)](BF4) (5), was also synthesized and characterized by structural and spectroscopic methods. Cyclic voltammetric studies showed 1-3 and 5 undergo a single reduction process with E1/2 between -0.9 V to -1.2 V versus Fc+/Fc. Treatment of 3 with 0.5% Na/Hg amalgam gave the monoreduced complex [Fe(LN3S)(DMAP)] 0 (4), which was characterized by X-ray crystallography, UV-vis spectroscopic analysis, electron paramagnetic resonance (EPR) spectroscopy (g = [2.155, 2.057, 2.038]), and Mössbauer (δ = 0.33 mm s-1; ΔEQ = 2.04 mm s-1) spectroscopy. Computational methods (DFT) were employed to model complexes 3-5. The combined experimental and computational studies show that 1-3 are 5-coordinate, high-spin (S = 2) FeII complexes, whereas 4 is best described as a 5-coordinate, intermediate-spin (S = 1) FeII complex antiferromagnetically coupled to a ligand radical. This unique electronic configuration leads to an overall doublet spin (Stotal = 1/2) ground state. Complexes 2 and 3 are shown to react with O2 to give S-oxygenated products, as previously reported for 1. In contrast, the monoreduced 4 appears to react with O 2 to give a mixture of sulfur oxygenates and iron oxygenates. The nickel(II) complex 5 does not react with O2, and even when the monoreduced nickel complex is produced, it appears to undergo only outer-sphere oxidation with O2. 2013 American Chemical Society.
AB - The known iron(II) complex [FeII(LN3S)(OTf)] (1) was used as starting material to prepare the new biomimetic (N 4S(thiolate)) iron(II) complexes [FeII(LN 3S)(py)](OTf) (2) and [FeII(LN3S)(DMAP)](OTf) (3), where LN3S is a tetradentate bis(imino)pyridine (BIP) derivative with a covalently tethered phenylthiolate donor. These complexes were characterized by X-ray crystallography, ultraviolet-visible (UV-vis) spectroscopic analysis, 1H nuclear magnetic resonance (NMR), and Mössbauer spectroscopy, as well as electrochemistry. A nickel(II) analogue, [NiII(LN3S)](BF4) (5), was also synthesized and characterized by structural and spectroscopic methods. Cyclic voltammetric studies showed 1-3 and 5 undergo a single reduction process with E1/2 between -0.9 V to -1.2 V versus Fc+/Fc. Treatment of 3 with 0.5% Na/Hg amalgam gave the monoreduced complex [Fe(LN3S)(DMAP)] 0 (4), which was characterized by X-ray crystallography, UV-vis spectroscopic analysis, electron paramagnetic resonance (EPR) spectroscopy (g = [2.155, 2.057, 2.038]), and Mössbauer (δ = 0.33 mm s-1; ΔEQ = 2.04 mm s-1) spectroscopy. Computational methods (DFT) were employed to model complexes 3-5. The combined experimental and computational studies show that 1-3 are 5-coordinate, high-spin (S = 2) FeII complexes, whereas 4 is best described as a 5-coordinate, intermediate-spin (S = 1) FeII complex antiferromagnetically coupled to a ligand radical. This unique electronic configuration leads to an overall doublet spin (Stotal = 1/2) ground state. Complexes 2 and 3 are shown to react with O2 to give S-oxygenated products, as previously reported for 1. In contrast, the monoreduced 4 appears to react with O 2 to give a mixture of sulfur oxygenates and iron oxygenates. The nickel(II) complex 5 does not react with O2, and even when the monoreduced nickel complex is produced, it appears to undergo only outer-sphere oxidation with O2. 2013 American Chemical Society.
e2b47a7662