Three mixed-alkaline-metal borates with {Li@B12Ox(OH)24−x} (x= 18, 22) clusters: From isolated oxoboron cluster to unusual layer

Qi Ming Qiu; Guo Yu Yang

doi:10.1039/d1ce00910a

Three mixed-alkaline-metal borates with {Li@B₁₂O_x(OH)_24−x} (x= 18, 22) clusters: From isolated oxoboron cluster to unusual layer

Qi Ming Qiu, Guo Yu Yang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Three new mixed-alkaline-metal borates, namely KNa₈[Li@B₁₂O₁₈(OH)₆](CO₃)₂(1), Cs₁₀[Li@B₁₂O₂₀(OH)₂]₂·6H₂O (2) and Cs₅[Li@B₁₂O₂₀(OH)₂]·3H₂O (3), have been synthesized under hydro/solvothermal conditions. Compound1is a borate carbonate with the isolated [Li@B₁₂O₁₈(OH)₆]⁵⁻clusters and interesting layers formed by Na⁺and CO₃²⁻ions, forming a 2D supramolecular structure with a 3,6-connecting binodal system. After changing the synthetic conditions, the isolated [Li@B₁₂O₁₈(OH)₆]⁵⁻clusters are successfully extended to the layers in2and3by condensation reactions with the elimination of water molecules between oxoboron clusters. Each new fundamental building block [Li@B₁₂O₂₂(OH)₂]⁹⁻in2and3connects with four neighboring units to form a 2D layerviaB-O-B bonds for the first time, and 14-membered rings are also observed. Such a layer structure is first observed in dodecaborates. Since compound3crystallizes in the non-centrosymmetric space group, the second harmonic generation measurement and the dipole moments calculation have been carried out.

Original language	English
Pages (from-to)	6518-6525
Number of pages	8
Journal	CrystEngComm
Volume	23
Issue number	37
DOIs	https://doi.org/10.1039/d1ce00910a
Publication status	Published - 7 Oct 2021

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title = "Three mixed-alkaline-metal borates with {Li@B12Ox(OH)24−x} (x= 18, 22) clusters: From isolated oxoboron cluster to unusual layer",

abstract = "Three new mixed-alkaline-metal borates, namely KNa8[Li@B12O18(OH)6](CO3)2(1), Cs10[Li@B12O20(OH)2]2·6H2O (2) and Cs5[Li@B12O20(OH)2]·3H2O (3), have been synthesized under hydro/solvothermal conditions. Compound1is a borate carbonate with the isolated [Li@B12O18(OH)6]5−clusters and interesting layers formed by Na+and CO32−ions, forming a 2D supramolecular structure with a 3,6-connecting binodal system. After changing the synthetic conditions, the isolated [Li@B12O18(OH)6]5−clusters are successfully extended to the layers in2and3by condensation reactions with the elimination of water molecules between oxoboron clusters. Each new fundamental building block [Li@B12O22(OH)2]9−in2and3connects with four neighboring units to form a 2D layerviaB-O-B bonds for the first time, and 14-membered rings are also observed. Such a layer structure is first observed in dodecaborates. Since compound3crystallizes in the non-centrosymmetric space group, the second harmonic generation measurement and the dipole moments calculation have been carried out.",

author = "Qiu, {Qi Ming} and Yang, {Guo Yu}",

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N2 - Three new mixed-alkaline-metal borates, namely KNa8[Li@B12O18(OH)6](CO3)2(1), Cs10[Li@B12O20(OH)2]2·6H2O (2) and Cs5[Li@B12O20(OH)2]·3H2O (3), have been synthesized under hydro/solvothermal conditions. Compound1is a borate carbonate with the isolated [Li@B12O18(OH)6]5−clusters and interesting layers formed by Na+and CO32−ions, forming a 2D supramolecular structure with a 3,6-connecting binodal system. After changing the synthetic conditions, the isolated [Li@B12O18(OH)6]5−clusters are successfully extended to the layers in2and3by condensation reactions with the elimination of water molecules between oxoboron clusters. Each new fundamental building block [Li@B12O22(OH)2]9−in2and3connects with four neighboring units to form a 2D layerviaB-O-B bonds for the first time, and 14-membered rings are also observed. Such a layer structure is first observed in dodecaborates. Since compound3crystallizes in the non-centrosymmetric space group, the second harmonic generation measurement and the dipole moments calculation have been carried out.

AB - Three new mixed-alkaline-metal borates, namely KNa8[Li@B12O18(OH)6](CO3)2(1), Cs10[Li@B12O20(OH)2]2·6H2O (2) and Cs5[Li@B12O20(OH)2]·3H2O (3), have been synthesized under hydro/solvothermal conditions. Compound1is a borate carbonate with the isolated [Li@B12O18(OH)6]5−clusters and interesting layers formed by Na+and CO32−ions, forming a 2D supramolecular structure with a 3,6-connecting binodal system. After changing the synthetic conditions, the isolated [Li@B12O18(OH)6]5−clusters are successfully extended to the layers in2and3by condensation reactions with the elimination of water molecules between oxoboron clusters. Each new fundamental building block [Li@B12O22(OH)2]9−in2and3connects with four neighboring units to form a 2D layerviaB-O-B bonds for the first time, and 14-membered rings are also observed. Such a layer structure is first observed in dodecaborates. Since compound3crystallizes in the non-centrosymmetric space group, the second harmonic generation measurement and the dipole moments calculation have been carried out.

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Three mixed-alkaline-metal borates with {Li@B₁₂O_x(OH)_24−x} (x= 18, 22) clusters: From isolated oxoboron cluster to unusual layer

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