X-Ray crystallography has revealed that the chiral 30-crown-10 derivative DD-(2) adopts a basket like conformation when it forms a 1 : 1 :1 complex with (S)-[PhCHMeNH3]+ CIO4– and H2O in the solid state; 1H n.m.r. spectroscopy suggests that 1:1:1 complexes of this type between (i)DD-(2), R1NH3+ cations, and H2O, and (ii)DD-(2), R1NH3+ cations, and R2NH2 are also stable in solution.
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Journal of the Chemical Society, Chemical Communications
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