Molecular shuttle

Term · Chemistry · MLC-T-CHM-007518

A rotaxane or pseudorotaxane whose macrocyclic ring can slide along the threaded axle between two or more recognition sites, called stations. In the first example, reported in 1991, the ring hopped between two identical stations by thermal motion alone, over a barrier of about 13 kcal/mol. In later designs, changes in pH, light or redox state alter the relative affinity of the stations and so set where the ring sits.

Table 1. Record
Identifier	MLC-T-CHM-007518
Field	Chemistry
Subject	Polymer
References	PAC, 2012, 84, 2135. 'Terminology and nomenclature for macromolecular rotaxanes and pseudorotaxanes (IUPAC Recommendations 2012)' on page 2139 (https://doi.org/10.1351/PAC-REC-11-10-15)
See also	Rotaxane polymer; Pseudorotaxane; Threading component

Record as JSON

{
  "id": "MLC-T-CHM-007518",
  "term": "Molecular shuttle",
  "field": "Chemistry",
  "definition": "A rotaxane or pseudorotaxane whose macrocyclic ring can slide along the threaded axle between two or more recognition sites, called stations. In the first example, reported in 1991, the ring hopped between two identical stations by thermal motion alone, over a barrier of about 13 kcal/mol. In later designs, changes in pH, light or redox state alter the relative affinity of the stations and so set where the ring sits.",
  "subject": "Polymer",
  "see_also": [
    "rotaxane polymer",
    "pseudorotaxane",
    "threading component"
  ],
  "references": [
    "PAC, 2012, 84, 2135. 'Terminology and nomenclature for macromolecular rotaxanes and pseudorotaxanes (IUPAC Recommendations 2012)' on page 2139 (https://doi.org/10.1351/PAC-REC-11-10-15)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/molecular-shuttle/"
}

Record 7,975 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.