Journal ArticleDOI
Oscillations in chemical systems. 18. Mechanisms of chemical oscillators: conceptual bases
TLDR
In this article, general aspects of chemical oscillators are discussed using a specific model to illustrate some important concepts concerning the theory of chemical Oscillators, and models for both temporal OO and spatial OO are presented.Abstract:
General aspects of chemical oscillators are discussed using a specific model to illustrate some important concepts concerning the theory of chemical oscillators. Models for both temporal chemical oscillators and spatial chemical oscillators are presented. (BLM)read more
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A review of the problem of distinguishing true homogeneous catalysis from soluble or other metal-particle heterogeneous catalysis under reducing conditions
TL;DR: In this article, the authors consider cases in which a discrete transition-metal complex is used as a precatalyst for reductive catalysis and focus on the problem of determining if the true catalyst is a metal-complex homogeneous catalyst or if it is a soluble or other metal-particle heterogeneous catalyst.
Journal ArticleDOI
A review of modern transition-metal nanoclusters: their synthesis, characterization, and applications in catalysis
TL;DR: A literature review of modern transition-metal nanoclusters, with an emphasis on those nanclusters which are catalytically active, is presented in this paper, where the authors compare and contrast the syntheses, characterization approaches, and catalytic applications of transition metal nan-clusters.
Journal ArticleDOI
Transition Metal Nanocluster Formation Kinetic and Mechanistic Studies. A New Mechanism When Hydrogen Is the Reductant: Slow, Continuous Nucleation and Fast Autocatalytic Surface Growth
TL;DR: In this article, the P2W15Nb3O629 polyoxoanion and Bu4N+- stabilized Ir∼190-450 (hereafter, Ir(0)∼300) nanoclusters are presented.
Journal ArticleDOI
Origins of biomolecular handedness
TL;DR: This work has shown that the parity-violating weak neutral current interaction gives rise to an energy difference between a chiral molecule and its mirror-image isomer, resulting in a small stabilization of the L-amino acids and theL-peptides in the α-helix and the β-sheet conformation relative to the corresponding enantiomer.
Journal ArticleDOI
The parity-violating energy difference between enantiomeric molecules
Stephen F. Mason,G.E. Tranter +1 more
TL;DR: In this article, the parity-violating weak neutral current perturbation of the groundstate electronic energy has been calculated, by ab initio methods, for the (S)-isomer of hydrogen peroxide, over a range of standard Gaussian basis sets.
References
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Journal ArticleDOI
The Chemical Basis of Morphogenesis
TL;DR: In this article, it is suggested that a system of chemical substances, called morphogens, reacting together and diffusing through a tissue, is adequate to account for the main phenomena of morphogenesis.
Journal ArticleDOI
Concentration wave propagation in two-dimensional liquid-phase self-oscillating system.
TL;DR: This work deals with patterns in a thin layer of solution, in which cerium ions catalyse the oxidation of analogues of malonic acid by bromate by oscillations in the solution colour.
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Oscillations in chemical systems. II. Thorough analysis of temporal oscillation in the bromate-cerium-malonic acid system
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Oscillations in chemical systems. IV. Limit cycle behavior in a model of a real chemical reaction
TL;DR: In this paper, the authors generalized the chemical mechanism of Field, Koros, and Noyes for the oscillatory Belousov reaction by a model composed of five steps involving three independent chemical intermediates.
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Spiral Waves of Chemical Activity
TL;DR: The Zhabotinsky-Zaikin reagent propagates waves of chemical activity that include spiral waves, resembling involutes of the circle, that appear, persist, and eventually exclude all concentric ring waves.