4.7 Article

Homochiral three-dimensional noncentrosymmetric lanthanide coordination polymers directed by chiral linkers: syntheses, crystal structures, and optical properties

Journal

CRYSTENGCOMM
Volume 23, Issue 20, Pages 3701-3709

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ce00281c

Keywords

-

Funding

  1. National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2018R1A5A1025208, 2019R1A2C3005530]

Ask authors/readers for more resources

Six enantiomorphic lanthanide-organic coordination polymers have been grown through solvothermal reactions, showing chiral structures directed by chiral TBA ligands and possessing noncentrosymmetric polar space group structures. These chiral coordination polymers not only absorb circularly polarized light, but also exhibit second-harmonic generation signals from the macroscopic NCS structures.
Crystals of six enantiomorphic lanthanide-organic coordination polymers, [Ln(2)((R,R)-TBA)(2)((R,R)-HTBA)(2)(H2O)(2)]center dot 7H(2)O [Ln(R)] and Ln(2)((S,S)-TBA)(2)((S,S)-HTBA)(2)(H2O)(2)]center dot 7H(2)O [Ln(S)] (Ln = La, Ce, and Pr; TBA = 1,3,5-triazin-2(1H)-one-4,6-bis(alanyl)), have been grown through solvothermal reactions. The chirality of compounds Ln(R) and Ln(S) turns out to be directed by that of the respective chiral TBA ligands. The structures of the reported compounds crystallizing in the noncentrosymmetric (NCS) polar space group, C2, consist of two types of polyhedra, namely, Ln(1)O-8 and Ln(2)O-10, and TBA linkers. Each Ln(1)O-8 polyhedron is connected through TBA ligands forming unidimensional (1D) chains. The 1D chains composed of Ln(1)O-8 polyhedra are further connected to La(2)O-10 polyhedra completing a three-dimensional framework. The chiral structures derived from the chiral organic TBA ligands not only absorb circularly polarized light, but also reveal second-harmonic generation signals originating from the macroscopic NCS structures. The reported chiral coordination polymers are further characterized by spectroscopic, thermal, and elemental analyses.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available