Focal unit

{
  "id": "MLC-T-CHM-004554",
  "term": "Focal unit",
  "field": "Chemistry",
  "definition": "The unit at the core of a dendrimer molecule built from just one dendron, bonded to that dendron through its single free valence. The dendron is a regular tree of repeating units, with every path from the focal unit to an end-group crossing the same number of units. A multi-dendron dendrimer has an ordinary core joining several dendrons instead.",
  "subject": "Polymer",
  "see_also": [
    "core unit",
    "dendrimer molecule",
    "dendron"
  ],
  "references": [
    "PAC, 2019, 91, 523. 'Nomenclature and terminology for dendrimers with regular dendrons and for hyperbranched polymers (IUPAC Recommendations 2017)' on page 530 (https://doi.org/10.1515/pac-2016-1217)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/focal-unit/"
}