TY - JOUR
T1 - High-Pressure Synthesis of a Pentazolate Salt
AU - Steele, Brad A.
AU - Stavrou, Elissaios
AU - Crowhurst, Jonathan C.
AU - Zaug, Joseph M.
AU - Prakapenka, Vitali B.
AU - Oleynik, Ivan I.
N1 - Publisher Copyright:
© 2016 American Chemical Society.
PY - 2017/1/24
Y1 - 2017/1/24
N2 - The pentazolates, the last all-nitrogen members of the azole series, have been notoriously elusive for the last hundred years despite enormous efforts to make these compounds in either gas or condensed phases. Here, we report a successful synthesis of a solid state compound consisting of isolated pentazolate anions N5-, which is achieved by compressing and laser heating cesium azide (CsN3) mixed with N2 cryogenic liquid in a diamond anvil cell. The experiment was guided by theory, which predicted the transformation of the mixture at high pressures to a new compound, cesium pentazolate salt (CsN5). Electron transfer from Cs atoms to N5 rings enables both aromaticity in the pentazolates as well as ionic bonding in the CsN5 crystal. This work provides critical insight into the role of extreme conditions in exploring unusual bonding routes that ultimately lead to the formation of novel high nitrogen content species.
AB - The pentazolates, the last all-nitrogen members of the azole series, have been notoriously elusive for the last hundred years despite enormous efforts to make these compounds in either gas or condensed phases. Here, we report a successful synthesis of a solid state compound consisting of isolated pentazolate anions N5-, which is achieved by compressing and laser heating cesium azide (CsN3) mixed with N2 cryogenic liquid in a diamond anvil cell. The experiment was guided by theory, which predicted the transformation of the mixture at high pressures to a new compound, cesium pentazolate salt (CsN5). Electron transfer from Cs atoms to N5 rings enables both aromaticity in the pentazolates as well as ionic bonding in the CsN5 crystal. This work provides critical insight into the role of extreme conditions in exploring unusual bonding routes that ultimately lead to the formation of novel high nitrogen content species.
UR - http://www.scopus.com/inward/record.url?scp=85018192778&partnerID=8YFLogxK
U2 - 10.1021/acs.chemmater.6b04538
DO - 10.1021/acs.chemmater.6b04538
M3 - 文章
AN - SCOPUS:85018192778
SN - 0897-4756
VL - 29
SP - 735
EP - 741
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 2
ER -