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Updated: Jun 1, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Homochiral layered indium phosphonates: solvent modulation of morphology and chiral discrimination adsorption
Qian Teng1, Song-Song Bao1, Ran Gao1
1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China. lmzheng@nju.edu.cn.
Abstract:
Assembling chiral coordination polymers into nano/microflower structures may improve their performance in applications such as chiral recognition and separation. In this study, we chose a chiral metal phosphonate system, i.e., In(NO3)3/R-, S-pempH2 [pempH2 = (1-phenylethylamino)methylphosphonic acid], and carried out systematic work on the self-assembly of this system in different alcohol/H2O mixed solvents under solvothermal conditions. Enantiomeric compounds R-, S-[In2(pempH)2(μ2-OH)2(H2O)2](NO3)2 (R-, S-1) were obtained showing dense layered structures, but their morphologies varied with alcohol solvent. We obtained crystals of R-, S-1C in triethylene glycol (TEG)/H2O mixed solvent and spiral microflowers of R-, S-1MF in isopropanol (IPA)/H2O mixed solvent. Adsorption isotherms using enantiopure R-2-butanol and S-2-butanol as probe molecules revealed that compounds R-1MF and S-1MF had higher adsorption capacity compared to the crystalline sample and displayed enantioselective adsorption behaviour.
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