The
P-anilino-
P-
chal
cogeno(imino)diazasilaphosphetidines [Me
2Si(
-N
tBu)
2P=E(NHPh)] (E = O (
3), S (
4), Se (
5),N-
p-tolyl (
6)) were synthesized by oxidizing the
P-anilinodiazasilaphosphetidine [Me
2Si(N
tBu)
2P(NHPh)] (
2) with
cumene hydroperoxide, sulfur, selenium, and
p-tolyl azide, respe
ctively. The lithium salt of
4 rea
cted with thalliummono
chloride to produ
ce {[Me
2Si(
-N
tBu)
2P=S(NPh)-
chars/kappa.gif" BORDER=0 >
N-
chars/kappa.gif" BORDER=0 >
S]Tl} (
7), whi
ch features a two-
coordinate thallium atom.Treatment of
4-6 with AlMe
3 gave the monoligand dimethylaluminum
complexes {[Me
2Si(
-N
tBu)
2P=E(NPh)-
chars/kappa.gif" BORDER=0 >
N-
chars/kappa.gif" BORDER=0 >
E]AlMe
2} (E = S (
8), Se (
9), N-
p-tolyl (
10)), respe
ctively. In these
complexes the aluminum atom is tetrahedrally
coordinated by one
chelating ligand and two methyl groups, as a single-
crystal X-ray analysis of
8 showed. A 2equiv amount of
4-6 rea
cted with diethylzin
c to produ
ce the homolepti
c diligand
complexes {[Me
2Si(
-N
tBu)
2P=E(NPh)-
chars/kappa.gif" BORDER=0 >
N-
chars/kappa.gif" BORDER=0 >
E]
2Zn} (E = S (
11), Se (
12), N-
p-tolyl (
13)). A
crystal-stru
cture analysis of
11 revealed a lineartetraspiro
cy
cle with a tetrahedrally
coordinated,
central zin
c atom.