2 Homometallic Alkoxides

Table 2.1 (Continued)
Homometallic Alkoxides 9
Method of Characterization
Compound 1 preparation 2 techniques 3 Reference
Th2⊲OBut⊳8⊲HOBut⊳ J-3 IR; 1H, 13CNMR; X-ray
Th2⊲OCHPr i 2 ⊳8 J-3 1 HNMR;
thermochemical
data; X-ray
U⊲OMe⊳4 E-3, I 213
U⊲OR⊳4
R D Et, But I 213
U2⊲OBut⊳8⊲HOBut⊳ J-3 IR; 1H NMR; UV-Vis 330
U⊲OCHBut 2⊳4 UfOCH⊲CF3⊳2g4⊲thf⊳2
UfOC⊲CF3⊳3g4⊲thf⊳2
U⊲OEt⊳5
U⊲OR⊳5
R D Me, Pr
E-3
E-2
E-2
J-1
1HNMR; 19FNMR; 19FNMR; eff; MS
eff
eff
229
h
h
379
n ,Pri ,Bus ,Bun ,Bui J-1 289
U⊲OBu t ⊳5 G 289
U⊲OCH2CF3⊳5 E-1 289
Pu⊲OPr i ⊳4.Pr i OH E-1 144
Group 4
[Ti⊲OEt⊳4]4 E-1 134
E-1 1H NMR 548
X-ray 434
M⊲OR⊳4
⊲M D Ti, Zr⊳
R D MeCH2⊲CH2⊳2CH2,
Me2CHCH2CH2, MeCH⊲Et⊳CH2,
Me3CCH2, CHEt2, CHMePrn ,
CHMePri G MW 273
,CMe2Et
Ti⊲OR⊳4
R D CMe2Et, CMeEt2
G MW; LvŁ [Zr⊲OR⊳4]n
R D Et, Pr
; 1S 274
i ,Bun ,Bus E-1 MW 145
R D Pri ,Prn ,Bun ,Amn E-1 MW 145a
[Zr⊲OPri⊳4.PriOH]2 E-3, I IR; 1H, 13CNMR; 460
X-ray
[Hf⊲OR⊳4]n
R D Et, Pr
E-1 MW 277
i
R D Me, Et, Pri ,But ,Amt G MW 277
[Hf⊲OPri⊳4.PriOH]2 E-1 IR; 1H, 13CNMR; 460
X-ray
Group 5
V⊲OR⊳4 E-3, I 331, 333
R D Me, Et, Pri ,But [Nb⊲OR⊳5]2
R D Me, Et, Pr
UV-Vis; eff; ESR 588, 589, 590
n ,Bun , n-pentyl
E-1, G MW 279, 468
[Ta⊲OR⊳5]n
R D Me, Et, Prn ,Bun ,
MeCH2CH2CH2 (and its isomers),
MeCH2CH2CH2CH2 (and its
isomers)
E-1, G MW 280, 312, 469
398
399
(continued overleaf )