chelate

https://doi.org/10.1351/goldbook.C01011
See: chelation
Sources:
PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1094 (https://doi.org/10.1351/pac199466051077)
Red Book, 3rd ed., p. 147 (https://doi.org/10.1515/pac-2014-0718)