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2 Homometallic Alkoxides

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Table 6.48 Aluminium aryloxides<br />

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

Compound Aryloxide M–O M–O–Ar Ref.<br />

[Al(OAr) 3]<br />

trigonal Al<br />

[(ArO) 2Al⊲ 2-ArO⊳2Al(OAr) 2]<br />

tetrahedral Al<br />

[Al(OAr) 3]<br />

6-coord. Al, mer-O3<br />

[Al(OAr) 3]<br />

6-coord. Al, mer-O3<br />

[Al(OAr) 3]<br />

6-coord. Al, mer-O3<br />

[Al(OAr) 3]<br />

tbp with axial N, one O and two O,N-bound ligands<br />

[Al(OAr) 3(py)]<br />

tetrahedral Al<br />

Homoleptic aryloxides and adducts<br />

OC6H2But 2-2,6-Me-4 1.657 (6)<br />

1.640 (5)<br />

1.647 (7)<br />

OC6H3Me2-2,6 1.686 (2)<br />

1.685 (2)<br />

2-OC6H3Me2-2,6 1.835 (2), 1.833 (2)<br />

OC6H4(oxazole)-2 1.877 (2)<br />

1.844 (2)<br />

1.838 (2)<br />

OC6H3(oxazole)-2-Me-6 1.849 (2)<br />

1.847 (2)<br />

1.847 (2)<br />

OC6H3(oxazole)-2-Br-4 1.839 (2)<br />

1.876 (2)<br />

1.839 (2)<br />

OC6H2⊲CH2NMe2⊳2-2,6-Me-4 1.716 (3)<br />

1.754 (3)<br />

1.764 (3)<br />

OC6H3Pr i 2<br />

-2,6 1.702 (3)<br />

1.711 (3)<br />

1.702 (4)<br />

i M.D. Healy and A.R. Barron, Angew. Chem., Int. Ed. Engl., 31, 921 (1992).<br />

ii M.D. Healy, M.R. Mason, P.W. Gravelle, S.G. Bott, and A.R. Barron, J. Chem. Soc., Dalton Trans., 441 (1993).<br />

iii R. Benn, E. Janssen, H. Lehmkuhl, A. Rufinska, K. Angermund, P. Betz, R. Goddard, and C. Kruger, J. Organomet. Chem., 411, 37 (1991).<br />

iv H.R. Hoveyda, V. Karunaratne, S.J. Rettig, and C. Orvig, Inorg. Chem., 31, 5408 (1992).<br />

v H.R. Hoveyda, C. Orvig, and S.J. Rettig, Acta Crystallogr. C, 50, 1906 (1994).<br />

vi M.P. Hogerheide, M. Wesseling, J.T.B.H. Jastrzebski, J. Boersma, H. Kooijman, A.L. Spek, and G. van Koten, Organometallics, 14, 4483 (1995).<br />

vii M.D. Healy, J.W. Ziller, and A.R. Barron, J. Am. Chem. Soc., 112, 2949 (1990).<br />

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