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.
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
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.