Abstract
The low-temperature reactions of [Sb(NMe
2
)
3
] with [CyPH
2
] and [CyPHNa] (1:1:1 equiv.) and of [As(NMe
2
)
3
] with [
t
BuPHLi] (1:3 equiv.) in TMEDA-thf [TMEDA = Me
2
NCH
2
)
2
] produce [{
cyclo
-(CyP)
4
Sb}Na·Me
2
NH·TMEDA]
2
1 and [{
cyclo
-(
t
BuP)
3
As}Li·TMEDA·thf] 2, respectively; at higher temperatures these reactions generate Zintl compounds containing Sb
7
3-
and As
7
3-
anions.