Macrocycles are often described as molecules and ions containing a ring of twelve or more atoms. Classical examples include the crown ethers, calixarenes...
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subunits with the nitrogen atoms facing outwards from the core of the macrocycle. A porphyrin-related disease: porphyria Porphyrin coordinated to iron:...
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hemoglobin and chlorophyll. In these two molecules, in particular, the pyrrole macrocycle ring frames a metal atom, that forms a coordination compound with the...
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Cyclic compound (section Macrocycles)
regular use.[citation needed] The term macrocycle is used for compounds having a rings of 8 or more atoms. Macrocycles may be fully carbocyclic (rings containing...
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Sports periodization (section The macrocycle)
time up into three types of cycles: microcycle, mesocycle, and macrocycle. A macrocycle refers to a season of training in its entirety. It is an annual...
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Michel (1999). "Gold(I) and Gold(0) Complexes of Phosphinine-Based Macrocycles". Angewandte Chemie International Edition. 38 (21): 3194–3197. doi:10...
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consisting of a dumbbell-shaped molecule which is threaded through a macrocycle (see graphical representation). The two components of a rotaxane are kinetically...
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Calixarene (category Macrocycles)
the hydrocarbon cyclo{oligo(1,3-phenylene)methylene}. A calixarene is a macrocycle or cyclic oligomer based on a methylene-linked phenols. With hydrophobic...
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Cyclic peptide (redirect from Peptide macrocycle)
Cyclic peptides are polypeptide chains which contain a circular sequence of bonds. This can be through a connection between the amino and carboxyl ends...
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Dynamic covalent chemistry (section Macrocycles)
as covalent organic frameworks, molecular knots, polymers, and novel macrocycles. Not to be confused with dynamic combinatorial chemistry, DCvC concerns...
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Pillararene (category Macrocycles)
Pillararenes are macrocycles composed of hydroquinone or dialkoxybenzene units (5 to 10) linked in the para position by methylene bridges. They are structurally...
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Catenane (category Macrocycles)
interlocked molecular architecture consisting of two or more interlocked macrocycles, i.e. a molecule containing two or more intertwined rings. The interlocked...
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Supramolecular chemistry (section Macrocycles)
thermodynamically or kinetically unlikely, such as in the preparation of large macrocycles. This pre-organization also serves purposes such as minimizing side reactions...
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carbohydrates) and large non-polymeric molecules such as lipids, nanogels and macrocycles. Synthetic fibers and experimental materials such as carbon nanotubes...
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charge-transfer complexes. Porphyrins have conjugated molecular ring systems (macrocycles) that appear in many enzymes of biological systems. As a ligand, porphyrin...
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Corrole (category Macrocycles)
Cobalamin structure includes a deprotonated corrin macrocycle....
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of the macrocycle ring absorbs visible light. The nature of the central metal can also influence the absorption spectrum of the metal-macrocycle complex...
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Gadoteric acid, sold under the brand name Dotarem among others, is a macrocycle-structured gadolinium-based MRI contrast agent (GBCA). It consists of the...
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most stable rings contain five or six carbon atoms, but large rings (macrocycles) and smaller rings are common. The smallest cycloalkane family is the...
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iron atom is at the centre of a porphyrin macrocycle, bound to four nitrogen atoms of the tetrapyrrole macrocycle. The very stable dimethylglyoximate complex...
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Corrin (category Macrocycles)
known to exist on its own, the molecule is of interest as the parent macrocycle related to the cofactor and chromophore in vitamin B12. Its name reflects...
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Retrieved 2020-06-08. Zhang W, Moore JS (July 2006). "Shape-persistent macrocycles: structures and synthetic approaches from arylene and ethynylene building...
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aerobic organisms) and whether oxygen is required. In both cases, the macrocycle that will form a coordination complex with the cobalt ion is a corrin...
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Porphine (category Macrocycles)
formula C20H14N4. It is heterocyclic and aromatic. The molecule is a flat macrocycle, consisting of four pyrrole-like rings joined by four methine bridges...
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natural products such as heme. Pyrroles are components of more complex macrocycles, including the porphyrinogens and products derived therefrom, including...
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equivalent of the diiodide produced macrocycles in low yields which could be separated by column chromatography. These macrocycles were then reductively aromatized...
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molecular architecture in which three macrocycles are interlocked in such a way that breaking any macrocycle allows the others to dissociate. They are...
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the macrocycle. In this study, it was proposed that the methylated proline residue contributed to the restricted conformation of the macrocycle. The...
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Phthalocyanine (category Macrocycles)
derivatives of the parent phthalocyanine, where either carbon atoms of the macrocycle are exchanged for nitrogen atoms, such as tetrapyrazinoporphyrazine, or...
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E (May 1980). "Biosynthesis of the pigments of life: formation of the macrocycle". Nature. 285 (5759): 17–21. Bibcode:1980Natur.285...17B. doi:10.1038/285017a0...
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