| 词汇 | benzene-ring |
| 释义 | benzene ring noun[ C ] chemistry specializeduk /ˈben.ziːn ˌrɪŋ/ us /ˈben.ziːn ˌrɪŋ/ in chemistry, a connected ring of six carbon atoms, as found in a molecule of benzene（化学）苯环（苯分子中以六个碳原子构成的环状结构） Physics: atoms, molecules & sub-atomic particles acceptor alpha particle anti-radical antilepton antimatter antineutrino beta decay beta particle hadron Higgs boson interatomic interelectronic interionic molecularly monatomic multi-molecular multiparticle muon positron relative atomic mass If you refer back to the diagram of the benzene ring which I gave in the last chapter, you will see that there are six hydrogen atoms attached to it. Examples of benzene ringbenzene ring Polycyclic aromatic hydrocarbons, a group of molecules consisting of a number of fused benzene rings, are major environmental contaminants. This breakthrough came about through the availability of the benzenering theory. Closely related to the benzenering were its condensed forms, naphthalene and anthracene. Isoquinoline and quinoline are benzopyridines, which are composed of a benzenering fused to a pyridine ring. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It consists of a benzenering substituted with an amino group and a carboxylic acid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its structure consists of a benzenering "para" -substituted with a methyl group and an isopropyl group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It involved the novel introduction of a malonyl equivalent into a highly sterically hindered position of a benzenering. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The etizolam molecule differs from a benzodiazepine in that the benzenering has been replaced by a thiophene ring, making the drug a thienodiazepine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are four peaks between 130-140 ppm from the carbons in the benzenering. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The main differences of the synephrine isomers compared for example to the ephedrines are the hydroxy-substitutions on the benzenering. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Starlicide is a small molecule in which a central benzenering is modified by amine, chloro and methyl substituents in a specific pattern. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The configuration of six carbon atoms in aromatic compounds is known as a benzenering, after the simplest possible such hydrocarbon, benzene. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In-methylcyclophanes in particular have a methyl group in proximity to a benzenering. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its chemical structure consists of a benzenering substituted with a hydroxy group and a propenyl group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The benzenering of a biologically active compound may often be replaced by a thiophene without loss of activity. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of benzene ring These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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