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Issue 17, 2018
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A pair of new chiral polyoxovanadates with decent NLO properties

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Abstract

Two pure enantiomers of polyoxovanadate clusters [(L-/D-C4O6H2)2V4O8]·2C6N2H18 (abbreviated as 1-L and 1-D) have been synthesized by a two-step method. During the two-step synthesis process, we first carried out the solvothermal synthesis and then evaporated the solvent, ending up with orange-yellow crystals. The unique chiral architectures are built up by a single chiral ligand (tartaric acid) and polyoxovanadium. The chiralities of the products were confirmed by circular dichroism (CD) spectra. Due to the presence of protonated free tetramethyl ethylenediamine (TMEDA) cations, the adjacent clusters and TMEDA cations can be connected by hydrogen-bonding interactions. The {V4} cluster linked adjacent clusters via hydrogen bonds to form a 3D supramolecular network. The open aperture Z-scan spectra of two compounds show that molecular TPA cross-section σ of 1-L and 1-D are 1412 and 1094 GM, respectively, which illustrate that they feature decent third-order NLO properties and may have great potential applications as NLO materials.

Graphical abstract: A pair of new chiral polyoxovanadates with decent NLO properties

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Publication details

The article was received on 14 Feb 2018, accepted on 29 Mar 2018 and first published on 29 Mar 2018


Article type: Paper
DOI: 10.1039/C8DT00631H
Citation: Dalton Trans., 2018,47, 6054-6058
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    A pair of new chiral polyoxovanadates with decent NLO properties

    J. Cao, Y. Xiong, X. Luo, L. Chen, J. Shi, M. Zhou and Y. Xu, Dalton Trans., 2018, 47, 6054
    DOI: 10.1039/C8DT00631H

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