Higher performing and less sensitive CN7−-based high-energy-density material

Qi Sun; Xin Li; Christopher Bamforth; Qiu han Lin; Muralee Murugesu; Ming Lu

doi:10.1007/s40843-019-1413-9

Higher performing and less sensitive CN₇⁻-based high-energy-density material

Qi Sun, Xin Li, Christopher Bamforth, Qiu han Lin^*, Muralee Murugesu^*, Ming Lu^*

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

The highest nitrogen-containing binary C-N anion, 5-azido-tetrazolate (CN₇⁻), has attracted significant attention owing to its high-energy content. Due to its relative instability and high sensitivity, it is an ongoing challenge to develop more stable and less sensitive novel materials based on CN₇⁻. Towards this goal, we have stabilized the CN₇⁻ anion without compromising its energetic performance by formation of its NH₃OH⁺ salt containing an additional NH₂OH molecule, [NH₃OH][CN₇][NH₂OH] (2). It possesses the best detonation performance and the lowest mechanical sensitivity among all known CN₇⁻-based materials. The structure-property relationship was elucidated through a careful investigation of the noncovalent interactions in the crystal lattice and the important role of the NH₂OH moiety. In addition, the structurally related compound [NH₃OH][CN₇] (1) was also studied.

Translated title of the contribution	更加高能低感的CN₇⁻高能量密度材料
Original language	English
Pages (from-to)	1779-1787
Number of pages	9
Journal	Science China Materials
Volume	63
Issue number	9
DOIs	https://doi.org/10.1007/s40843-019-1413-9
Publication status	Published - 1 Sept 2020
Externally published	Yes

Keywords

binary C-N anion
high nitrogen
high-energy-density material
hydrogen bonds

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10.1007/s40843-019-1413-9

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title = "Higher performing and less sensitive CN7−-based high-energy-density material",

abstract = "The highest nitrogen-containing binary C-N anion, 5-azido-tetrazolate (CN7−), has attracted significant attention owing to its high-energy content. Due to its relative instability and high sensitivity, it is an ongoing challenge to develop more stable and less sensitive novel materials based on CN7−. Towards this goal, we have stabilized the CN7− anion without compromising its energetic performance by formation of its NH3OH+ salt containing an additional NH2OH molecule, [NH3OH][CN7][NH2OH] (2). It possesses the best detonation performance and the lowest mechanical sensitivity among all known CN7−-based materials. The structure-property relationship was elucidated through a careful investigation of the noncovalent interactions in the crystal lattice and the important role of the NH2OH moiety. In addition, the structurally related compound [NH3OH][CN7] (1) was also studied.",

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author = "Qi Sun and Xin Li and Christopher Bamforth and Lin, {Qiu han} and Muralee Murugesu and Ming Lu",

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T1 - Higher performing and less sensitive CN7−-based high-energy-density material

AU - Sun, Qi

AU - Li, Xin

AU - Bamforth, Christopher

AU - Lin, Qiu han

AU - Murugesu, Muralee

AU - Lu, Ming

PY - 2020/9/1

Y1 - 2020/9/1

N2 - The highest nitrogen-containing binary C-N anion, 5-azido-tetrazolate (CN7−), has attracted significant attention owing to its high-energy content. Due to its relative instability and high sensitivity, it is an ongoing challenge to develop more stable and less sensitive novel materials based on CN7−. Towards this goal, we have stabilized the CN7− anion without compromising its energetic performance by formation of its NH3OH+ salt containing an additional NH2OH molecule, [NH3OH][CN7][NH2OH] (2). It possesses the best detonation performance and the lowest mechanical sensitivity among all known CN7−-based materials. The structure-property relationship was elucidated through a careful investigation of the noncovalent interactions in the crystal lattice and the important role of the NH2OH moiety. In addition, the structurally related compound [NH3OH][CN7] (1) was also studied.

AB - The highest nitrogen-containing binary C-N anion, 5-azido-tetrazolate (CN7−), has attracted significant attention owing to its high-energy content. Due to its relative instability and high sensitivity, it is an ongoing challenge to develop more stable and less sensitive novel materials based on CN7−. Towards this goal, we have stabilized the CN7− anion without compromising its energetic performance by formation of its NH3OH+ salt containing an additional NH2OH molecule, [NH3OH][CN7][NH2OH] (2). It possesses the best detonation performance and the lowest mechanical sensitivity among all known CN7−-based materials. The structure-property relationship was elucidated through a careful investigation of the noncovalent interactions in the crystal lattice and the important role of the NH2OH moiety. In addition, the structurally related compound [NH3OH][CN7] (1) was also studied.

KW - binary C-N anion

KW - high nitrogen

KW - high-energy-density material

KW - hydrogen bonds

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SP - 1779

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JF - Science China Materials

IS - 9

ER -

Higher performing and less sensitive CN₇⁻-based high-energy-density material

Abstract

Keywords

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