A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB11H12]−

Han, Hui; Wang, Ying-Ying; Yu, Xing-Chao; Ma, Yan-Na; Chen, Xuenian

doi:10.3390/cryst12101339

Open AccessArticle

A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB₁₁H₁₂]⁻

by

Hui Han

¹,

Ying-Ying Wang

¹,

Xing-Chao Yu

²,

Yan-Na Ma

^1,*

and

Xuenian Chen

^1,2,*

¹

College of Chemistry, Zhengzhou University, Zhengzhou 450001, China

²

Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China

^*

Authors to whom correspondence should be addressed.

Crystals 2022, 12(10), 1339; https://doi.org/10.3390/cryst12101339

Submission received: 5 September 2022 / Revised: 15 September 2022 / Accepted: 15 September 2022 / Published: 22 September 2022

(This article belongs to the Special Issue Advances of Carborane Compounds)

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Abstract

Alkali metal (M = Na, K) salts of the [CB₁₁H₁₂]⁻ anion have attracted increasing attention in many fields such as catalysis and all-solid-state batteries. However, tedious and low-yielding synthetic methods have seriously limited their application in these fields. We developed a facile method for the direct synthesis of the unsolvated potassium and sodium salts of the [CB₁₁H₁₂]⁻ anion in 66% and 68% yields, respectively, by reactions of Na[B₁₁H₁₄] with NaH/NaHMDS (sodium bis(trimethylsilyl)amide), CF₃SiMe₃ in THF and K[B₁₁H₁₄] with KH, CF₃SiMe₃ in DME. This method avoids the exchange of cation and significantly simplifies the reaction setup, thus enabling convenient large-scale synthesis. It is believed that this method will support further application of Na[CB₁₁H₁₂] and K[CB₁₁H₁₂] as solid electrolytes for an all-solid-state battery.

Keywords: Na[CB₁₁H₁₂]; K[CB₁₁H₁₂]; Na[B₁₁H₁₄]; K[B₁₁H₁₄]; one-pot synthesis

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MDPI and ACS Style

Han, H.; Wang, Y.-Y.; Yu, X.-C.; Ma, Y.-N.; Chen, X. A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB₁₁H₁₂]⁻. Crystals 2022, 12, 1339. https://doi.org/10.3390/cryst12101339

AMA Style

Han H, Wang Y-Y, Yu X-C, Ma Y-N, Chen X. A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB₁₁H₁₂]⁻. Crystals. 2022; 12(10):1339. https://doi.org/10.3390/cryst12101339

Chicago/Turabian Style

Han, Hui, Ying-Ying Wang, Xing-Chao Yu, Yan-Na Ma, and Xuenian Chen. 2022. "A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB₁₁H₁₂]⁻" Crystals 12, no. 10: 1339. https://doi.org/10.3390/cryst12101339

APA Style

Han, H., Wang, Y.-Y., Yu, X.-C., Ma, Y.-N., & Chen, X. (2022). A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB₁₁H₁₂]⁻. Crystals, 12(10), 1339. https://doi.org/10.3390/cryst12101339

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A Simple and Efficient Way to Directly Synthesize Unsolvated Alkali Metal (M = Na, K) Salts of [CB₁₁H₁₂]⁻

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