Alkalides are anionic alkali compounds containing e.g. sodide (Na–), kalide (K–), rubidide (Rb–) or caeside (Cs–). Around 90 examples can be found in the Cambridge structure database (see DOI: 10.14469/hpc/3453 for the search query and results). So what about the ammonium analogue, ammonide (NH4–)? A quick search of Scifinder drew a blank! So here I take a look at this intriguingly simple little molecule.‡
Posts Tagged ‘Anions’
Ammonide: an alkalide formed from ammonia and resembling an electride.
Sunday, December 17th, 2017Cyclopropenium cyclopentadienide: a strangely neutral ion-pair?
Sunday, April 9th, 2017Both the cyclopropenium cation and the cyclopentadienide anion are well-known 4n+2-type aromatic ions, but could the two together form an ion-pair?
Oxane oxide: a tautomer of hydrogen peroxide.
Friday, April 15th, 2016If H3N+-O– is viable compared with its tautomer H2N-OH when carrying water bridges, then why not try H2O+-O– vs HO-OH?