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Two 1D homochiral heterometallic chains: crystal structures, spectra, ferroelectricity and ferromagnetic properties.

ABSTRACT: Two new homo chiral Cu-Ln (Ln = Gd and Ho) compounds bearing a chiral Schiff base ligand (1R,3S)-N',N''-bis[3-methoxysalicylidene]-1,3-diamino-1,2,2-trimethylcyclopentane (H₂L) have been synthesized and characterized by elemental analysis, IR spectroscopic and single-crystal X-ray diffraction techniques. The compounds were found to exhibit 1D zig-zag skeletons with double μ-1,5 bridging dicyanamide anions. Circular dichroism (CD) spectra have been used to verify their chiroptical activities. Magnetic studies suggest that 1 and 2 hold the same magnetic behavior with the dinuclear compounds presenting ferromagnetic interaction. Furthermore, both compounds show ferroelectricity with the remnant polarization (P _r) value of 0.23 and 0.18 μC cm^-2 at room temperature, respectively.

SUBMITTER: Zhou Z

PROVIDER: S-EPMC9049737 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Two 1D homochiral heterometallic chains: crystal structures, spectra, ferroelectricity and ferromagnetic properties.

Zhou Zhuoqiang Z Li Ming-Xing MX Sui Yan Y Nfor Emmanuel N EN Wang Zhao-Xi ZX

RSC advances 20200214 12

Two new homo chiral Cu-Ln (Ln = Gd and Ho) compounds bearing a chiral Schiff base ligand (1R,3S)-N',N''-bis[3-methoxysalicylidene]-1,3-diamino-1,2,2-trimethylcyclopentane (H2L) have been synthesized and characterized by elemental analysis, IR spectroscopic and single-crystal X-ray diffraction techniques. The compounds were found to exhibit 1D zig-zag skeletons with double μ-1,5 bridging dicyanamide anions. Circular dichroism (CD) spectra have been used to v ...[more]

PMID: 35493874

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