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Updated: Dec 31, 2025

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Chiral Discrimination of Varied Ammonium Compounds through 1H NMR Using a Binuclear Ti Complex Sensor
Zhaofeng Sun1,2, Zhongxiang Chen1,2, Yanqi Wang1,3
1The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China.
Abstract:
A simple chiral binuclear titanium complex ((S)-Ti2L3Na4) was first prepared and served as an excellent chiral sensor for discriminating a variety of chiral ammoniums by 1H NMR. In the presence of trifluoroacetic acid, the in-situ-generated ammoniums of varied amines can be effectively resolved by (S)-Ti2L3Na4. The different binding forces between (S)-Ti2L3Na4 and two enantiomers of analytes generate different shielding effects on two enantiomers, resulting in a split in the distinguishable chemical shift.
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