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单词 macrocyclic
释义

Definition of macrocyclic in English:

macrocyclic

adjective ˌmakrə(ʊ)ˈsɪklɪkˌmakrə(ʊ)ˈsʌɪklɪkˌmakrōˈsiklik
Chemistry
  • Relating to or denoting a ring composed of a relatively large number of atoms, such as occur in haem, chlorophyll, and several natural antibiotics.

    〔化〕大环的

    Example sentencesExamples
    • Collectively, they are called tetraamido macrocyclic ligands or TAML for short.
    • The intermolecular interactions between the viologens and the macrocyclic molecule were investigated in a solution before photoirradiation.
    • The polar head is a macrocyclic lactone ring containing nine amino acid residues, three of which have positive charges, whereas one has negative charge.
    • Epothilones, macrocyclic lactones from culture filtrates of the myxobacterium Sorangium cellulosum, are known as taxol-like microtubular drugs in human medicine.
    • A porphyrin is a macrocyclic (large cycle) molecule that is made up of four smaller pyrrolenine rings.

Derivatives

  • macrocycle

  • noun
    Chemistry
    • Very few porphyrins are known to form J-aggregates, the main requisite being the zwitterionic character with the protonation of the pyrrole nitrogen in the macrocycle.
      Example sentencesExamples
      • If this view of the HRP-benzene complex is correct, the interacting benzene molecule shall significantly perturb the symmetry of the heme macrocycle.
      • However, similar spectral changes can also be produced by the protonation of the macrocycle at the azomethine nitrogens, although there are very few reports in which this phenomenon is discussed.
      • Particular attention was given to the family of chlorins that differ from porphyrins only by saturation of a peripheral double bond of the macrocycle.
      • Their device was based on a supramolecular system consisting of a p-electron-donating macrocycle threaded with a p-electron-accepting wire-like molecule.

Definition of macrocyclic in US English:

macrocyclic

adjectiveˌmakrōˈsiklik
Chemistry
  • Relating to or denoting a ring composed of a relatively large number of atoms, such as occurs in heme, chlorophyll, and several natural antibiotics.

    〔化〕大环的

    Example sentencesExamples
    • The polar head is a macrocyclic lactone ring containing nine amino acid residues, three of which have positive charges, whereas one has negative charge.
    • Collectively, they are called tetraamido macrocyclic ligands or TAML for short.
    • Epothilones, macrocyclic lactones from culture filtrates of the myxobacterium Sorangium cellulosum, are known as taxol-like microtubular drugs in human medicine.
    • The intermolecular interactions between the viologens and the macrocyclic molecule were investigated in a solution before photoirradiation.
    • A porphyrin is a macrocyclic (large cycle) molecule that is made up of four smaller pyrrolenine rings.
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更新时间:2024/10/19 14:39:20