arsoniumn.
/ɑːˈsəʊnɪəm/, U.S. /ɑrˈsoʊniəm/ Chemistry.
An ion containing an arsenic atom bonded to four hydrogen atoms, AsH4+, analogous to ammonium and phosphonium; a substituted form of this. Chiefly attributive or as a formative element in chemical names.
ΚΠ
1857 A. W. Hofmann & A. Cahours in Philos. Trans. (Royal Soc.) 147 571 (heading) Iodide of tetrallylarsonium.
1860 Philos. Trans. (Royal Soc.) 150 523 The bromide of the bromethylated arsonium, on the other hand, yields..the vinyl-body of the series.
1906 Amer. Chem. Jrnl. 35 20 It was impossible to separate the arsonium iodide in the usual manner.
1949 R. W. Schwartz & J. W. Perry Surface Active Agents I. vii. 201 Jerchel has synthesized a large number of phosphonium and arsonium bases containing hydrophobic groups, and studied their bactericidal and hemolytic properties.
1992 J. W. McLaren et al. in R. E. Clement et al. Instrumentation Trace Org. Monitoring 204 (caption) Dynamic ion exchange separation of arsenobetaine, tetramethyl arsonium, and arsenocholine.
2015 Chem. Communications 51 4110/1 Phosphonium compounds show greater cytotoxicity than the corresponding arsonium compounds.
This entry has been updated (OED Third Edition, September 2018; most recently modified version published online December 2021).
<
n.1857