Chemistry Reference
In-Depth Information
Table 3.1 Preparation and characterization of some representative tetraalkoxo-
metallate derivatives
Synthetic
Characterization
route
1
Compound
techniques
References
KAl(OPr
i
)
4
.2Pr
i
OH
A-1
IR, NMR, MS,
X-ray
1, 35, 38, 52,
53, 76, 204
MgfAl(OPr
i
)
4
g
2
.2Pr
i
OH
B
NMR, X-ray
35, 36, 37
MgfAl(OBu
s
)
4
g
2
F
NMR, MS
206
MfAl(OPr
i
)
4
g
2
M D Mg, Ca, Sr, Ba
B
IR, NMR, volatility,
solubility, MW,
alcoholysis
35, 36, 85
Mg
2
Al
3
(OPr
i
)
13
B
IR, NMR, X-ray
90
BaAl
3
(OPr
i
)
11
,
Ba
2
Al
3
(OPr
i
)
13
B
IR, NMR, MW,
alcoholysis
91
MfAl(OPr
i
)
4
g
2
,
ClMfAl(OPr
i
)
4
g
M D Be, Zn, Cd, Hg(
II
)
C
IR, NMR, MW,
solubility,
volatility,
alcoholysis
94
fAl(OPr
i
)
4
BeOPr
i
g
2
C , W
alcoholysis
207
[MfAl(OPr
i
)
4
g
2
]
M D Mn(
II
), Fe(
II
), Co(
II
), Ni(
II
), Cu(
II
)
C
42, 97,
100 - 104
MfAl(OBu
t
)
4
g
2
C
UV-Vis,
101, 109,
M D Mn, Fe, Co, Ni, Cu, Zn
paramagnetism,
110, 108
solubility,
volatility,
alcoholysis
[MfAl(OPr
i
)
4
g
3
]
M D Cr(
III
), Fe(
III
), In(
III
)
C
105, 106,
69, 77
LnfAl(OPr
i
)
4
g
3
A-2, C
NMR, MS,
80
X-ray of
40
[ErfAl(OPr
i
)
4
g
3
],
volatility,
solubility
[(Pr
i
O)
2
ZrfAl(OPr
i
)
4
g
2
]
A-2, C
209 - 211
[(Pr
i
O)
2
HffAl(OPr
i
)
4
g
2
]
A-2
X-ray
77
[(Pr
i
O)
3
MfAl(OPr
i
)
4
g
2
]
M D Nb, Ta
A-2
NMR, volatility,
MW
75
[fPrf(
-OPr
i
)
2
Al(OPr
i
)
2
g
2
(Pr
i
OH)(
-Cl)g
2
]
C
X-ray
39
[I
2
SnfAl(OPr
i
)
4
g
2
]
C
X-ray
236
[ThfAl(OPr
i
)
4
g
4
]
C
NMR, volatility,
MW
52, 74
1
See Section 2 for details of routes listed.
alkoxides of Co and Ni with primary alcohols has been explained
97
on the basis of
ligand field effects. Alkoxoaluminates of these transition metals are again volatile and
monomeric, whereas their simple alkoxides are polymerized insoluble entities.
These alkoxoaluminates of later 3d metals undergo facile exchange reactions with
other alcohols or
ˇ
-diketones. The properties of a few of these bimetallic alkoxide
products are illustrated in Table 3.2.
