Solvent modulation of the morphology of homochiral gadolinium coordination polymers and its impact on circularly polarized luminescence

Hou, Ting; Zhao, Chen-Chen; Bao, Song-Song; Zhai, Zhi-Min; Zheng, Li-Min

doi:10.1039/d3dt03735e

Dalton Trans.

2024

DOI: 10.1039/d3dt03735e

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Solvent modulation of the morphology of homochiral gadolinium coordination polymers and its impact on circularly polarized luminescence

Ting Hou,

Chen-Chen Zhao,

Song-Song Bao

et al.

Abstract: 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...

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Hollow Superhelices Based on Chiral Europium Coordination Polymers

Zhai,

Hou,

et al. 2024

Chemistry A European J

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The construction of helical nanotubes based on chiral coordination polymers (CPs) is an intriguing but challenging task, which is important for the development of functional materials that combine macroscopic chirality with tube‐related properties. Here, we selected a chiral europium phosphonate system, e.g., Eu(NO3)3/R‐,S‐pempH2, and carried out a systematic work. By controlling the hydrothermal reaction conditions such as the pH value of the reaction mixture, the molar ratio and concentration of the reactants, we obtained block‐like crystals of R/S‐1b, rod‐like crystals ofR/S‐3r, hollow superhelices of R/S‐2hh, and solid superhelices of R/S‐4sh. In the latter two cases, the chirality has been successfully transferred and amplificated from the molecular level to the macroscopic level. Interestingly, compounds R/S‐2hh and R/S‐4sh have the same chemical composition of Eu(R/S‐pempH)3×2H2O and show identical PXRD patterns, thus can be considered as the same material except for different morphologies. We further investigated their circularly polarized luminescence (CPL) properties and found that the hollow superhelix of R/S‐2hh had a larger dissymmetry factor than the solid superhelix of R/S‐4sh. This study not only provides the first example of hollow superhelices of chiral CPs, but also offers the possibility of modulating the chiroptical properties of CPs through morphological control.

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Hollow Superhelices Based on Chiral Europium Coordination Polymers

Zhai,

Hou,

et al. 2024

Chemistry A European J

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show abstract

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Solvent modulation of the morphology of homochiral gadolinium coordination polymers and its impact on circularly polarized luminescence

Abstract: 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...

Cited by 1 publication

References 45 publications

Hollow Superhelices Based on Chiral Europium Coordination Polymers

Hollow Superhelices Based on Chiral Europium Coordination Polymers

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