AI Article Synopsis
- The study examined the stabilities of Tl-crown ether and Rb-crown ether complexes using advanced mass spectrometry techniques.
- Tl and Rb, having the same ionic radii, allow for a direct comparison of their interactions with crown ethers of varying cavity sizes (12C4, 18C6, 24C8).
- Results showed that 1:1 Tl-crown ether complexes are as stable or more stable than their Rb counterparts, while 2:1 complexes with Tl are less stable than those with Rb.
Article Abstract
The gas-phase stabilities of Tl-crown ether complexes and Rb-crown ether complexes were studied using the electrospray ionization-collision-induced dissociation-tandem mass spectrometry. Tl and Rb have identical ionic radii, thus a comparison of the properties of the crown ether complexes with these two cations seems to be justified. The selected crown ethers were 12C4 (it has a cavity smaller than the cation radius), 18C6 (it has a cavity of size similar to the cation radius), 24C8 (it has a cavity greater than the cation radius) and their conjugates. It has been found that the crown ether complexes of stoichiometry 1:1 with Tl are more or equally stable in the gas phase than the crown ether complexes with Rb. However, 2:1 complexes with Tl are less stable than the complexes with Rb.
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| http://dx.doi.org/10.1177/1469066717752794 | DOI Listing |
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