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Pentazolate

{{Chembox

| ImageFile = Pentazolate.png

| ImageSize = 100px

| IUPACName =

| Section1 = {{Chembox Identifiers

| CASNo = 86840-63-3

| CASNo_Ref = {{cascite|correct|CAS}}

| PubChem = 59450521

| SMILES = N1=NN=N[N-]1

| StdInChI=1S/N5/c1-2-4-5-3-1/q-1

| StdInChIKey=DAHQTMWHOQRXRN-UHFFFAOYSA-N

}}

| Section2 = {{Chembox Properties

| N=5 | Formula_Charge=-1

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File:Pentazoles.svg

In chemistry, a pentazolate is a compound that contains a cyclo-N5− 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.Zhang, C., Sun, C., Hu, B., Yu, C., & Lu, M. (2017). Synthesis and characterization of the pentazolate anion cyclo-N5− in (N5)6(H3O)3(NH4)4Cl. Science, 355(6323), 374–376. {{doi|10.1126/science.aah3840}} A series of metal and nonmetal pentazolates were subsequently synthesized according to their work.

List of pentazolates

class="wikitable"

! !! Appearance !! Dec. temp (°C) !! Ref

LiN5white133Xu, Y., Ding, L., Yang, F., Li, D., Wang, P., Lin, Q., & Lu, M. (2022). LiN5: A novel pentazolate salt with high nitrogen content. Chemical Engineering Journal, 429, 132399.
LiN5·3H2Ocolorless139
[Na(N5)(H2O)]·2H2Ocolorless111.3Xu, Y., Wang, Q., Shen, C. et al. A series of energetic metal pentazolate hydrates. Nature 549, 78–81 (2017). {{doi|10.1038/nature23662}}
[Mg(N5)2(H2O)6]·4H2Ocolorless103.5
Al(H2O)6(N5)3·9H2Owhite141.4Chen, L., Yang, C., Hu, H., Shi, L., Zhang, C., Sun, C., ... & Hu, B. (2022). Iron(III) and aluminum(III) complexes of cyclopentazolate anions. CrystEngComm. {{doi|10.1039/D2CE01270G}}
[Mn(N5)2(H2O)4]·4H2Ocolorless104.1
[Fe(N5)2(H2O)4]·4H2Opale green114.7
Fe(H2O)6(N5)3·9H2Oreddish brown108.9
[Co(N5)2(H2O)4]·4H2Obright orange58.9
AgN5Sun, C., Zhang, C., Jiang, C., Yang, C., Du, Y., Zhao, Y., Hu. B., Zheng. Z., Christe, K. O. (2018). Synthesis of AgN5 and its extended 3D energetic framework. Nature Communications, 9(1). {{doi|10.1038/s41467-018-03678-y}}
[Pb(OH)]4(N5)4colorless80Yuan, Y., Xu, Y., Xie, Q., Li, D., Lin, Q., Wang, P., & Lu, M. (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.
[N(CH3)4]N5white80.8Yang, C., Zhang, C., Zheng, Z., Jiang, C., Luo, J., Du, Y., Hu. B., Sun. C., Christe, K. 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. {{doi|10.1021/jacs.8b05106}}
(NH3OH)N5white104.3
[C(NH2)3]N5white88.1
NH4N5white102.0
N2H5N5white85.3
(CN7H6)N596.3Yu, R. J., Liu, Y. J., Huang, W., & Tang, Y. X. (2022). A hybrid of tetrazolium and pentazolate: An energetic salt with ultrahigh nitrogen content and energy. Energetic Materials Frontiers. {{doi|10.1016/j.enmf.2022.05.002}}

References

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See also

Category:Pentazoles