Organometallic Elaboration as a Strategy for Tuning the Supramolecular Characteristics of Aza-Crown Ethers was written by Smith, Jacob B.;Camp, Andrew M.;Farquhar, Alexandra H.;Kerr, Stewart H.;Chen, Chun-Hsing;Miller, Alexander J. M.. And the article was included in Organometallics in 2019.COA of Formula: C10H21NO4 This article mentions the following:
Cyclometalated square-planar and octahedral transition metal complexes I (L1-L3 void, Cl, H, CO) with pincer NCP-ligands functionalized by azacrown ether moiety were prepared and examined for binding affinity towards alkali metal ions. Outfitting an aza-crown ether with an organotransition metal pendant provides a mechanism for tuning its supramol. properties. The binding affinity can be tuned by more than 2 orders of magnitude by changing the identity of the transition metal center, altering the overall charge of the complex, or engaging in organometallic ligand substitution reactions. High Li+ selectivity (up to 29-fold higher affinity than Na+), proton-responsive behavior, and ion pair (ditopic) binding capabilities are observed in the metalla-crown ethers. 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. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H 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.COA of Formula: C10H21NO4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem