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| Identifiers | |
|---|---|
3D model (JSmol)
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PubChem CID
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| Properties | |
| N−5 | |
| Conjugate acid | Pentazole |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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In chemistry, a pentazolate is a compound that contains a cyclo–N−5 ion, the anion of pentazole. In 2017, researchers prepared the first salt (N5)6(H3O)3(NH4)4Cl containing pentazolate anion starting a substituted phenylpentazole, m-CPBA and iron(II) glycinate.[1] A series of metal and nonmetal pentazolates were subsequently synthesized according to their work.
List of pentazolates
| Appearance | Dec. temp (°C) | Ref | |
|---|---|---|---|
| LiN5 | white | 133 | [2] |
| LiN5·3H2O | colorless | 139 | [2] |
| [Na(N5)(H2O)]·2H2O | colorless | 111.3 | [3] |
| [Mg(N5)2(H2O)6]·4H2O | colorless | 103.5 | [3] |
| [Al(N5)3(H2O)6]·9H2O | white | 141.4 | [4] |
| [Mn(N5)2(H2O)4]·4H2O | colorless | 104.1 | [3] |
| [Fe(N5)2(H2O)4]·4H2O | pale green | 114.7 | [3] |
| [Fe(N5)3(H2O)6]·9H2O | reddish brown | 108.9 | [4] |
| [Co(N5)2(H2O)4]·4H2O | bright orange | 58.9 | [3] |
| AgN5 | pale white | 120 | [5] |
| [Pb4(OH)4]4(N5)4 | colorless | 80 | [6] |
| [N(CH3)4]N5 | white | 80.8 | [7] |
| (NH3OH)N5 | white | 104.3 | [7] |
| [C(NH2)3]N5 | white | 88.1 | [7] |
| NH4N5 | white | 102.0 | [7] |
| N2H5N5 | white | 85.3 | [7] |
| (CN7H6)N5 | 96.3 | [8] |
References
- ^ Zhang, Chong; Sun, Chengguo; Hu, Bingcheng; Yu, Chuanming; Lu, Ming (2017). "Synthesis and characterization of the pentazolate anion cyclo-N5− in (N5)6(H3O)3(NH4)4Cl". Science. 355 (6323): 374–376. Bibcode:2017Sci...355..374Z. doi:10.1126/science.aah3840. PMID 28126812.
- ^ a b Xu, Yuangang; Ding, Lujia; Yang, Feng; Li, Dongxue; Wang, Pengcheng; Lin, Qiuhan; Lu, Ming (2022). "LiN5: A novel pentazolate salt with high nitrogen content". Chemical Engineering Journal. 429 132399. doi:10.1016/j.cej.2021.132399.
- ^ a b c d e Xu, Yuangang; Wang, Qian; Shen, Cheng; Lin, Qiuhan; Wang, Pengcheng; Lu, Ming (2017). "A series of energetic metal pentazolate hydrates". Nature. 549 (7670): 78–81. Bibcode:2017Natur.549...78X. doi:10.1038/nature23662. PMID 28847006.
- ^ a b Chen, Lei; Yang, Chen; Hu, Haoran; Shi, Lei; Zhang, Chong; Sun, Chengguo; Gao, Chao; Du, Yang; Hu, Bingcheng (2022). "Synthesis and characterization of cyclo-pentazolate salts of iron(III) and aluminum(III)". CrystEngComm. 24 (46): 8152–8159. Bibcode:2022CEG....24.8152C. doi:10.1039/D2CE01270G.
- ^ Sun, Chengguo; Zhang, Chong; Jiang, Chao; Yang, Chen; Du, Yang; Zhao, Yue; Hu, Bingcheng; Zheng, Zhansheng; Christe, Karl O. (2018). "Synthesis of AgN5 and its extended 3D energetic framework". Nature Communications. 9 (1) 1269. doi:10.1038/s41467-018-03678-y. PMC 5871778. PMID 29593262.
- ^ Yuan, Yuan; Xu, Yuangang; Xie, Qiang; Li, Dongxue; Lin, Qiuhan; Wang, Pengcheng; Lu, Ming (2022). "Pentazolate coordination polymers self-assembled by in situ generated [Pb4(OH)4]4+ cubic cations trapping cyclo-N5–". Dalton Transactions. 51 (15): 5801–5809. doi:10.1039/d1dt04392g. PMID 35302566.
- ^ a b c d e Yang, Chen; Zhang, Chong; Zheng, Zhansheng; Jiang, Chao; Luo, Jun; Du, Yang; Hu, Bingcheng; Sun, Chengguo; Christe, Karl O. (2018). "Synthesis and Characterization of cyclo-Pentazolate Salts of NH4+, NH3OH+, N2H5+, C(NH2)3+, and N(CH3)4+". Journal of the American Chemical Society. 140 (48): 16488–16494. Bibcode:2018JAChS.14016488Y. doi:10.1021/jacs.8b05106. PMID 30392354.
- ^ Yu, Ru-Jing; Liu, Yu-ji; Huang, Wei; Tang, Yong-Xing (2023). "A hybrid of tetrazolium and pentazolate: An energetic salt with ultrahigh nitrogen content and energy". Energetic Materials Frontiers. 4 (2): 63–67. Bibcode:2023EMF.....4...63Y. doi:10.1016/j.enmf.2022.05.002.