Institution
Indian Association for the Cultivation of Science
Education•Kolkata, India•
About: Indian Association for the Cultivation of Science is a education organization based out in Kolkata, India. It is known for research contribution in the topics: Catalysis & Excited state. The organization has 3867 authors who have published 10457 publications receiving 220098 citations.
Topics: Catalysis, Excited state, Thin film, Ligand, Nanoparticle
Papers published on a yearly basis
Papers
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TL;DR: An easily accessible ionic liquid, 1-methyl-3-pentylimidazolium fluoroborate, [pmIm]BF4, has been demonstrated to be an efficient catalyst as well as reaction medium for the stereoselective debromination of a variety of structurally diverse vicinal-dibromides to the corresponding (E)-alkenes in high yields under microwave irradiation.
Abstract: An easily accessible ionic liquid, 1-methyl-3-pentylimidazolium fluoroborate, [pmIm]BF4, has been demonstrated to be an efficient catalyst as well as reaction medium for the stereoselective debromination of a variety of structurally diverse vicinal-dibromides to the corresponding (E)-alkenes in high yields under microwave irradiation. This reaction does not require any organic solvent and any metal or any conventional reducing agent, and the ionic liquid is recycled without any appreciable loss of its catalytic efficiency.
107 citations
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TL;DR: Water-soluble fluorescent gold clusters (AuCs) have been successfully synthesized by a wet-chemical approach at room temperature using a dipeptide l-cysteinyl-l-cysteine to develop the new fluorescent sensor for the selective and ultra-sensitive detection of As(III) ions in the presence of other bivalent and trivalent metal ions in aqueous solution.
Abstract: Water-soluble fluorescent gold clusters (AuCs) have been successfully synthesized by a wet-chemical approach at room temperature using a dipeptide L-cysteinyl-L-cysteine. We have followed the core-etching mechanism for the synthesis of the gold clusters. Clusters show the excitation maximum at 300 nm and the emission maximum at 410 nm. These gold clusters show interesting fluorescent properties including large Stoke's shift (110 nm), with a quantum yield of 41.3%, and photochemical stability. Transmission electron microscopic analysis shows that most of these particles are <1.5 nm. These clusters have been applied successfully to develop the new fluorescent sensor for the selective and ultra-sensitive detection of AsIII ions in the presence of other bivalent and trivalent metal ions in aqueous solution with a lower detection limit of 53.7 nM and this is far below the permissible limit (133 nM) of arsenic in drinking water permitted by WHO and USEPA. These gold clusters also show semiconducting behavior.
107 citations
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TL;DR: An overview of the notions of size-extensivity and size-consistency, which play an important role in the discussion of many-body methods in physics and chemistry, can be found in this article.
Abstract: An overview is presented of the notions of size-extensivity and size-consistency, which play an important role in the discussion of many-body methods in physics and chemistry. We also introduce the concept of generalized extensivity, which has been used before implicitly in the literature, and provide an operational definition, which can be tested numerically in a similar way as size-consistency. A numerical example illustrates the concept of generalized extensivity as applied to the EOM-CCSD, STEOM-CCSD and extended-STEOM-CCSD electronic structure methods for excited states. In another line of thought it is argued that algebraic proofs are often more easily constructed than diagrammatic proofs to demonstrate proper separation into non-interacting fragments. The algebraic line of reasoning is illustrated for single reference methods and applied to discuss separability properties for a variety of Hilbert space multi-reference coupled cluster methods.
106 citations
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TL;DR: It is hypothesize that a high density of Zn-Schiff base/salen units present in the porous polymer network is responsible for the exceptionally high catalytic performance of ZN@SBMMP.
106 citations
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TL;DR: A naphthalene diimide (NDI) building block containing hydrazide (H1) and hydroxy (H2) groups self-assembled into a reverse-vesicular structure in methylcyclohexane by orthogonal H-bonding and π-stacking by folding process due to the charge-transfer interaction between NDI and PY.
Abstract: A naphthalene diimide (NDI) building block containing hydrazide (H1) and hydroxy (H2) groups self-assembled into a reverse-vesicular structure in methylcyclohexane by orthogonal H-bonding and π-stacking. At an elevated temperature (LCST=43 °C), destruction of the assembled structure owing to selective dissociation of H2–H2 H bonding led to macroscopic precipitation. Further heating resulted in homogeneous redispersion of the sample at 70 °C (UCST) and the formation of a reverse-micellar structure. In the presence of a pyridine (H3)-functionalized pyrene (PY) donor, a supramolecular dyad (NDI–PY) was formed by H2–H3 H-bonding. Slow transformation into an alternate NDI–PY stack occurred by a folding process due to the charge-transfer interaction between NDI and PY. The mixed NDI–PY assembly exhibited a morphology transition from a reverse micelle (with a NDI–PY mixed-stack core) below the LCST to another reverse micelle (with a NDI core) above the UCST via a “denatured” intermediate.
106 citations
Authors
Showing all 3900 results
Name | H-index | Papers | Citations |
---|---|---|---|
Yves Pommier | 123 | 789 | 58898 |
Flemming Besenbacher | 114 | 728 | 51827 |
Katsuhiko Ariga | 112 | 864 | 45242 |
Shunichi Fukuzumi | 111 | 1256 | 52764 |
Rajdeep Mohan Chatterjee | 110 | 990 | 51407 |
Kwang S. Kim | 97 | 642 | 62053 |
Amar K. Mohanty | 81 | 538 | 31856 |
Nigel D. Browning | 81 | 646 | 23621 |
Andrea Caneschi | 80 | 435 | 25896 |
Rodolphe Clérac | 78 | 506 | 22604 |
Subrata Ghosh | 78 | 841 | 32147 |
Miaofang Chi | 77 | 304 | 22817 |
Yuan Ping Feng | 77 | 650 | 25846 |
D. D. Sarma | 70 | 521 | 18082 |
Asim Bhaumik | 69 | 466 | 16882 |