词汇 | racemic |
释义 | BETA Examples of racemicracemic isn’t in the Cambridge Dictionary yet. You can help! Firstly, we have assumed that the initial state is globally racemic. The arguments we have used would suggest that the ambient amino acids were effectively racemic. The methyl phosphonate is unresolved and therefore contains a racemic mixture of the two diastereomers. On the other hand, for reasons similar to those set out in the previous section, one might not have an exactly racemic system either. As meteoritic amino acids are synthetic products of abiotic processes, it is expected that they should be present as racemic mixtures. The identified amino acids were racemic, since the initial photoreaction was performed with unpolarized light. However, this would still only produce a racemic mixture of equally many right- and left-handed helices. The behaviour of the reduced model can be understood qualitatively : an initial racemic mixture with small local perturbations quickly relaxes locally to regions of different chirality. The separated and quantified enantiomers of the amino acids showed racemic occurrence. Because polymorphs exhibit differential nucleation rates and solubilities, enantiomeric enhancement can occur during crystallization from racemic mixtures. Verapamil is interesting because of its racemic properties. Furthermore, given the rapid degradation of enantiomer excess into racemic mixtures due to natural diffusion with the environment, this approach requires the existence of an extant community of organisms. The details of the bifurcation from a racemic solution to a homochiral state of either handedness is shown to be remarkably independent of whether the polymerization is unidirectional or bidirectional. |
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。