Results 41 to 50 of about 4,647 (247)
Anion–π catalysis on carbon allotropes
Beilstein Journal of Organic Chemistry, 2023 Anion–π catalysis, introduced in 2013, stands for the stabilization of anionic transition states on π-acidic aromatic surfaces. Anion–π catalysis on carbon allotropes is particularly attractive because high polarizability promises access to really strong
M. Ángeles Gutiérrez López +7 more
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Life, 2019 How did chemicals first become organized into systems capable of self-propagation and adaptive evolution? One possibility is that the first evolvers were chemical ecosystems localized on mineral surfaces and composed of sets of molecular species that ...
Lena Vincent +8 more
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Using Patchy Particles to Shed New Light on the Autocatalytic Aggregation of Soft Matter
Proceedings, 2019 Autocatalysis, i.e., the speeding up of a reaction through the very same molecule which is [...]
Silvia Corezzi +2 more
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Platinum Group Metals: A Review of Resources, Production and Usage with a Focus on Catalysts
Resources, 2021 The major applications of PGMs are as catalysts in automotive industry, petroleum refining, environmental (gas remediation), industrial chemical production (e.g., ammonia production, fine chemicals), electronics, and medical fields.
Anthony E. Hughes +3 more
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Autocatalysis and organocatalysis with synthetic structures [PDF]
Proceedings of the National Academy of Sciences, 2009 The discovery of ribozymes led to the proposal of an RNA world, where a single type of molecule was supposedly capable of self-replication and chemical catalysis. We show here that both autocatalysis and organocatalysis can be engineered into a synthetic structure.
Seiji, Kamioka +2 more
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The Role of Autocatalysis in Learner’s Networks [PDF]
, 2014 We use contemporary studies of human networking roles to propose that idea generation and associated knowledge transfer can occur through autocatalysis in human networks representing industry on a final year module “Creative Action in Organisations ...
McHardy, Peter, Vershinina, Natalia
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Autocatalysis in a Reconstituted Chloroplast System [PDF]
Plant Physiology, 1974 In whole plants and intact chloroplasts, photosynthesis does not reach its full rate immediately upon illumination but only after a lag which is believed to reflect an autocatalytic increase in the concentration of carbon cycle intermediates. Autocatalysis has now been observed in a reconstituted system containing envelope-free chloroplasts augmented ...
D A, Walker, R M, Lilley
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Asymmetric autocatalysis with amplification of enantiomeric excess utilizing chiral crystals of achiral o-terphenyls as chiral triggers [PDF]
Chiral crystals composed of achiral hydrocarbon o-terphenyl and its dimethoxy derivative, 4′,5′-dimethoxy-o-terphenyl have been successfully employed as chiral triggers in the enantioselective addition of diisopropylzinc to pyrimidine-5-carbaldehyde.
Tateishi Daisuke +8 more
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Enantioselective Synthesis Utilizing Enantiomorphous Organic Crystal of Achiral Benzils as a Source of Chirality in Asymmetric Autocatalysis [PDF]
, 2016 Chiral crystals of achiral benzils act as efficient chiral initiators of asymmetric autocatalysis to afford highly enantioenriched pyrimidyl alkanols whose absolute configurations depend upon the enantiomorph of the crystal used in conjunction with ...
Yuuki Harada (2418757) +6 more
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The occurrence of prime numbers revisited
GECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología, 2016 Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or smaller
Ernesto Tapia Moore, José Tapia Yañez
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