macrocycle

Noun

Meaning

(chemistry) a cyclic macromolecule, or a macrocyclic portion of a molecule

In sports training, an annual plan that works towards peaking for the goal competition of the year.

Source: en.wiktionary.org

Examples

If the end groups of the dumbbell are an appropriate size it will be able to reversibly thread through the macrocycle at higher temperatures. Source: Internet

The macrocycle can rotate around the axis of the dumbbell like a wheel and axle or it can slide along its axis from one site to another. Source: Internet

Controlling the position of the macrocycle allows the rotaxane to function as molecular switch with each possible location of the macrocycle corresponding to a different state. Source: Internet

Heme is a good example: the iron atom is at the centre of a porphyrin macrocycle, being bound to four nitrogen atoms of the tetrapyrrole macrocycle. Source: Internet

The partial macrocycle then undergoes a ring closing reaction around the dumbbell-shaped molecule, forming the rotaxane. Source: Internet

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