Homohelical Self-Assembly of Trimer of α-Cyclodextrin and Octamolybdate.

The ability to conceptually mimic biomolecules to construct emergency-functional homospiral aggregates remains a long-standing challenge. Herein, we report artificial homohelical assembly by blending inorganic polyoxometalates (POMs) and organic cyclodextrin molecules. The chiral double-helical chains have been achieved by a left-hand arrangement of trimer-trimer.

Doping transition metals to modulate the chirality and photocatalytic activity of rare earth clusters.

In this paper, we report the successful assembly of achiral {LnM} ([LnM(μ-OH)(acac)(CHO)(CHOH)], Ln = La, M = Mn, Co, Fe) and chiral {NdFe} ([NdFe(μ-O)(μ-OH)(acac)(NO)(CHOH)(HO)]) rare earth clusters using achiral rigid ligands and a transition metal doping strategy. {LnM} can be viewed as the fusion of two {LnM} tetrahedrons by sharing vertices. {NdFe} results from the fusion of four {LnM} tetrahedrons by vertice and edge sharing.