Unveiling the nature of supramolecular crown ether-C60 interactions was written by Moreira, Luis;Calbo, Joaquin;Krick Calderon, Rafael M.;Santos, Jose;Illescas, Beatriz M.;Arago, Juan;Nierengarten, Jean-Francois;Guldi, Dirk M.;Orti, Enrique;Martin, Nazario. And the article was included in Chemical Science in 2015.Category: ethers-buliding-blocks This article mentions the following:
A series of exTTF-(crown ether)2 receptors, designed to host C60, has been prepared The size of the crown ether and the nature of the heteroatoms have been systematically changed to fine tune the association constants Electrochem. measurements and transient absorption spectroscopy assisted in corroborating charge transfer in the ground state and in the excited state, leading to the formation of radical ion pairs featuring lifetimes in the range from 12 to 21 ps. To rationalize the nature of the exTTF-(crown ether)2·C60 stabilizing interactions, theor. calculations have been carried out, suggesting a synergetic interplay of donor-acceptor, π-π, n-π and CH···π interactions, which is the basis for the affinity of our novel receptors towards C60. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Category: ethers-buliding-blocks).
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, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil. 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.Category: ethers-buliding-blocks
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem