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The crystal structure of quitenidinium ethyl ester ethyl sulfate, C21H27N2O4+.C2H5SO4- has been determined. The conformation of the cation is open in contrast to the closed conformation of the non-protonated quitenine ethyl ester. The molecules are linked by intermolecular O-H...N hydrogen bonds into chains along the b axis. A bifurcated hydrogen bond is present between the protonated quinuclidine N and two O atoms belonging to the ethyl sulfate anion.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablock QtdEES

fcf

Structure factor file (CIF format)
Contains datablock qeesfx

CCDC reference: 128330

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