In an article, published in an article, once mentioned the application of 33100-27-5, Name is 1,4,7,10,13-Pentaoxacyclopentadecane,molecular formula is C10H20O5, is a conventional compound. this article was the specific content is as follows.name: 1,4,7,10,13-Pentaoxacyclopentadecane
Multinuclear spin relaxation data are reported for three crown ethers and their complexes with alkali metal ions.Quadrupole coupling constants in systems modeling the complexes are estimated by ab initio SCF MO calculations.The calculations indicate that the quadrupole coupling constant for 17O is only weakly influenced by complex formation.The comparison of 13C and 17O relaxation rates leads to the conclusion that the complex formation not only slows the overall reorientation of the crown ether molecules but also reduces the segmental motion of the CH2 groups.The relaxation rates of the alkali metal nuclei are used to estimate the quadrupole coupling constants, which are also compared to the calculated results.
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