Ross, Tamsyn M. et al. published their research in Dalton Transactions in 2012 | CAS: 66943-05-3

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O閳ユ椊 or N閳ユ椊 bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Formula: C10H21NO4

Spin crossover in polymeric and heterometallic FeII species containing polytopic dipyridylamino-substituted-triazine ligands was written by Ross, Tamsyn M.;Moubaraki, Boujemaa;Batten, Stuart R.;Murray, Keith S.. And the article was included in Dalton Transactions in 2012.Formula: C10H21NO4 This article mentions the following:

The authors report the synthesis and characterization of the new polytopic ligands, ddta (N,N-di(pyridin-2-yl)-4,6-di(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)-1,3,5-triazin-2-amine) and tptd (N2,N2,N4,N4-tetra(pyridin-2-yl)-6-(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)-1,3,5-triazine-2,4-diamine). Each contains N-donor dipyridylamino binding sites as well as sep. and distinct mono-aza-15-crown-5 binding sites. The ligand ddta was used to synthesize the polymeric heterometallic spin crossover (SCO) compound trans-[Fe(II)(NCS)2(ddta)2Na2](ClO4)2.4MeCH2CH2OH, (I), and tptd was used to synthesize the polymeric SCO compound trans-[Fe(II)(NCS)2(tptd)].MeOH, (II), and the dinuclear compound cis-[(Fe(II))2(NCS)4(tptd)2], (III). Magnetic susceptibility measurements show that I and a desolvated sample of III each undergo a gradual, 1-step spin transition with T1/2 values of 閳?40 K and 閳?10 K, resp. The paucity of inter-chain intermol. interactions, as well as the flexible, covalent bridges between Fe(II) spin crossover sites, are likely to contribute to the gradual nature of the spin transition observed in each case. Variable temperature powder x-ray diffraction studies on I show the anisotropic behavior of the unit cell parameters, where c and the b-c plane are most affected by structural changes occurring as the temperature is lowered. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O閳ユ椊 or N閳ユ椊 bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Formula: C10H21NO4

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