26.12.2012 Views

2 Homometallic Alkoxides

2 Homometallic Alkoxides

2 Homometallic Alkoxides

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

580<br />

Table 6.26 (Continued)<br />

Bond length ( ˚A) Bond angle ( Ž )<br />

Compound Aryloxide M–O M–O–Ar Reference<br />

[⊲ArO⊳2Ta⊲ -CSiMe3⊳2Ta⊲CH2SiMe3⊳2]<br />

1,3-dimetallabutadiene core, tetrahedral Ta<br />

[Ta⊲OC6H3But-CMe2CH2⊳⊲OAr)(Ph) 2]<br />

tbp Ta, axial ArO<br />

OC6H3But 2-2,6 OC6H3But [Ta(OAr)⊲OC6H3Ph-C6H4⊳(H)Cl⊲PMe3⊳2]<br />

pentagonal bipyramidal Ta, axial O<br />

-CMe2CH2<br />

OC6H3Ph-2,6<br />

OC6H3Ph-<br />

1.909 (4)<br />

1.926 (4)<br />

1 [Ta⊲OC6H3Ph-C6H4⊳⊲OAr) 2Me]<br />

tbp Ta, axial ArO<br />

-C6H4<br />

OC6H3Ph2-2,6<br />

OC6H3Ph-<br />

1.910 (3)<br />

1.947 (3)<br />

1-C6H4 1.899 (4)<br />

1.883 (4)<br />

1.909 (4)<br />

[Ta⊲OC6H3Ph-C6H4⊳⊲OAr⊳2Bui ]<br />

tbp Ta, axial ArO<br />

OC6H3Ph2-2,6<br />

OC6H3Ph- 1-C6H5 1.89 (3)<br />

1.91 (3)<br />

1.913 (3)<br />

[Ta⊲OC6H3Ph-C6H4⊳2⊲OAr)]<br />

tbp Ta, axial metallated OAr<br />

OC6H3Ph2-2,6<br />

OC6H3Ph- 1-C6H5 1.903 (3)<br />

1.905 (2)<br />

1.897 (2)<br />

[Ta⊲OC6H3But-CMe2CH2⊳2Cl] tbp Ta, axial ArO<br />

OC6H3But-CMe2CH2 1.87 (1)<br />

1.87 (1)<br />

[Ta(OAr) 2⊲ 2-xyNCMe⊳2⊲Me⊳] OC6H3Me2-2,6 1.913 (4)<br />

1.938 (4)<br />

[Ta(OAr) 3⊲C4Et4⊳] OC6H3Pri 2-2,6 1.845 (5)<br />

1.921 (5)<br />

1.858 (4)<br />

[Ta(OAr) 3⊲DCMe-CMeDCHBu t ⊳⊲py⊳] OC6H3Pri 2-2,6 1.94 (1)<br />

1.93 (1)<br />

1.88 (1)<br />

[Ta(OAr) 3⊲CMeDCMe-Cvinyl-CH2⊳] OC6H3Pri 2-2,6 1.917 (7)<br />

1.857 (7)<br />

1.860 (7)<br />

[Ta(OAr) 2(NBut )(NBut-CPhDCPh2⊳] OC6H3Me2-2,6 1.931 (10)<br />

1.915 (10)<br />

OC6H3But 2-2,6 1.904 (4) 170 xxx<br />

150<br />

144<br />

167<br />

131<br />

170<br />

147<br />

141<br />

161<br />

137<br />

137<br />

147<br />

137<br />

140<br />

145<br />

145<br />

169<br />

168<br />

175<br />

171<br />

165<br />

141<br />

157<br />

157<br />

152<br />

172<br />

159<br />

153<br />

156<br />

xxxii<br />

xxxiii<br />

xxxiv<br />

xxxv<br />

xxxvi<br />

xxxvi<br />

xxxvii<br />

xxxvii<br />

xii<br />

xxxviii<br />

xxxix<br />

xl<br />

xli<br />

xli<br />

xlii

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!