Studying the effect of morphology on the circularly polarized luminescence (CPL) of chiral molecular materials is important for the development of CPL-active materials for applications. Herein, we report that the morphology of Gd(NO)/-,-AnempH [AnempH = (1-anthrylethylamino)methylphosphonic acid] assemblies can be controlled by solvent modulation to form spiral bundles Gd(-,-AnempH)·2HO (R-,S-1), crystals Gd(-,-AnempH)·2HO (R-,S-2) and spindle-shaped particles Gd(-,-AnempH)·3HO·0.5DMF (R-,S-3) with similar chain structures. Interestingly, R-,S-1 are CPL active and show the highest value of dissymmetric factor among the three pairs of enantiomers (|| = 2.1 × 10), which is 2.8 times larger than that of R-,S-2, while R-,S-3 are CPL inactive with || ≈ 0. This work provides a new route to control the morphology of chiral coordination polymers and improve their CPL performance.
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