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Host-guest complexation of imine-type meta-bridged bis(benzo crown ether)s with alkali cations in the gas phase under fast atom bombardment conditions



Host-guest complexation of imine-type meta-bridged bis(benzo crown ether)s with alkali cations in the gas phase under fast atom bombardment conditions



Rapid Communications in Mass Spectrometry 12(15): 1021-1027



The complexation of a series of bis(benzo crown ether)s of variable ring size and length of the linking chain with Na+, K+ and Cs+ was studied in the gas phase by fast atom bombardment mass spectrometry in nitrobenzyl alcohol/glycerol as a matrix. Both 2:1 (conventionally within the cavity of the crown ether units) and 1:1 complexes (a sandwich-like structure) were found depending on the cavity size of the crown units, the outer diameter of the complexing cations and the length and flexibility of the linking chain.

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Accession: 008783674

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DOI: 10.1002/(sici)1097-0231(19980815)12:15<1021::aid-rcm270>3.0.co;2-i


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