2 Homometallic Alkoxides

642
Table 6.48 (Continued)
Bond length ( ˚A) Bond angle ( Ž )
Compound Aryloxide M–O M–O–Ar Ref.
[Me2Al⊲ 2-OAr⊳2AlMe2]
tetrahedral Al
2-OC6H3⊲CH2CHDCH2⊳-2-Me-6 1.859 (3), 1.862 (3) xxix
[Me2Al⊲ 2-OAr⊳2AlMe2]
5-coord. Al, two independent molecules
2-OC6H4SMe-2 1.865 (6), 1.946 (6)
1.979 (6), 1.865 (6)
1.856 (6), 1.964 (6)
xxx
[⊲i-Bu⊳2Al⊲ 2-OAr⊳2Al⊲i-Bu⊳2]
5-coord. Al
2-OC6H4SMe-2 1.870 (2), 1.966 (2) xxx
[⊲Et⊳2Al⊲ 2-OAr⊳2Al(Et) 2]
5-coord. Al
2-OC6H4OMe-2 1.859 (3), 1.952 (3) xxx
[⊲Bui⊳2Al⊲ 2-OAr⊳2Al⊲Bui⊳2] 5-coord. Al
2-OC6H4OMe-2 1.861 (1), 1.950 (1) xxx
[⊲i-Bu⊳2Al⊲ 2-OAr⊳2Al⊲i-Bu⊳2]
tetrahedral Al
2-OC6H3Me2-2,6 1.871 (1), 1.874 (2) xxxi
[Me2Al⊲ 2-OAr⊳2AlMe2]
two molecules, five-coord. Al due to chelating aryloxide
2-OC6H3⊲CMeO⊳-2-Cl-4 1.852 (2), 1.964 (2)
1.854 (2), 1.975 (2)
xxxii
[Me2Al(di-OAr)AlMe2] two tetrahedral Al linked by keto bridge
ODC⊲2-OC6H2But-6-Me-4⊳2 1.78 (1) 122 xxxiii
[⊲Bui⊳2Al⊲ 2-di-OAr⊳Al⊲Bui⊳2] 2,20 ⊲OC6H2Bu
-(1,2-ethynediyl)bis(phenoxide), both O bridge two Al centres
t 2-2-Me-4⊳2⊲CC⊳ 1.915 (2), 1.912 (2)
1.917 (2), 1.909 (2)
xxxiv
[K(dibenzo-18-crown-6)][Me3Al⊲ 2-OAr⊳AlMe3]
[Me(ArO)Al⊲ 2-Cl⊳2Al(OAr)(Me)]
2-OC6H5
OC6H3Bu
1.901 (9), 1.88 (1) xxv
t 2-2,6 1.679 (2) 152 xxxv