Sazonov, Petr K. et al. published their research in Dalton Transactions in 2009 | CAS: 66943-05-3

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.COA of Formula: C10H21NO4

Lariat ethers with fluoroaryl side-arms: a study of CF···metal cation interaction in the complexes of N-(o-fluoroaryl)azacrown ethers was written by Sazonov, Petr K.;Minacheva, Lidiya Kh.;Churakov, Andrei V.;Sergienko, Vladimir S.;Artamkina, Galina A.;Oprunenko, Yuri F.;Beletskaya, Irina P.. And the article was included in Dalton Transactions in 2009.COA of Formula: C10H21NO4 This article mentions the following:

New lariat ethers, N-(o-fluorophenyl)aza-15-crown-5 (F-A15C5) and N,N’-bis(o-fluorophenyl)diaza-18-crown-6 (F2-A218C6), were prepared by the N-arylation of the corresponding azacrown ethers. The interaction of the ligands with metal cations was studied in solution by 1H and 19F NMR (in acetone-d6) and UV spectroscopy (MeOH) confirming the formation of complexes of F2-A218C6 with K+, Na+, Ag+, Ba2+, Pb2+ and of F-A15C5 with Na+ and giving evidence of CF···metal cation interaction. Cation binding constants (β, evaluated by UV titration method), demonstrate that F-A15C5 and F2-A218C6 form more stable complexes than their F-free analogs. The effect depends on the nature of the metal cation and is at a maximum for hard, singly charged cations (up to 3 logβ units for K+ complex of F2-A218C6). The x-ray structures of [Pb(F2-A218C6)(H2O)](ClO4)2 (1) and [Ba(F2-A218C6)(ClO4)2] (2) reveal short Pb-F (2.805 Å) and Ba-F (2.965 Å) contacts. Complex 2 is centrosym. (Ci), while complex 1 has C2 symmetry with 1-side coordination of o-fluorophenyl groups to Pb2+. This 1-side coordination mode of Pb2+ is indicative of a partial localization of the Pb2+ lone pair. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3COA of Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.COA of Formula: C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem