lariat ethers

Crownethers (See: crown) having a side chain that holds one or more additional coordinating sites.
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1347
See also:
PAC, 1988, 60, 461 (Lariat ethers: from cation complexation to supramolecular assemblies) on page 461