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2 Homometallic Alkoxides

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651<br />

Table 6.56 Bismuth aryloxides<br />

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

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

[Bi(OAr)3]<br />

pyramidal Bi<br />

OC6H3Me2-2,6 2.091 (5) (av.) [124 (4) av.] i<br />

[Bi2( 2-OAr)2Cl4(THF)2]<br />

square pyramid Bi, axial Cl<br />

2-OC6H3Me2-2,6 2.211 (5), 2.463 (5) ii<br />

[Bi2( 2-OAr)2Cl4(THF)2]<br />

square pyramid Bi, axial Cl<br />

2-OC6H2Me3-2,4,6 2.187 (3), 2.497 (3) ii<br />

[NMe4]2 [Bi2(OAr)6( -Cl)2]<br />

square pyramid Bi, axial OAr<br />

OC6H3Me2-2,6 2.154 (3)<br />

2.152 (3)<br />

126<br />

126<br />

ii<br />

2.113 (3) 125<br />

[PPh4]2 [Bi(OAr)2Br3]<br />

square pyramid Bi, axial OAr<br />

OC6H2Me3-2,4,6 2.193 (7)<br />

2.119 (7)<br />

129<br />

128<br />

ii<br />

[Et2Bi( 2-OAr)]1<br />

chiral helical chains, tbp with axial OAr,<br />

equatorial lone pair<br />

2-OC6H5 2.382 (7) iii<br />

[Et2Bi( 2-OAr)]1<br />

isomorphous with OPh compound<br />

2-OC6F5 2.4105 (7) iii<br />

[Bi(OAr)2( 2-OAr)( 6-toluene)]2.2toluene dimer with -bound toluene<br />

[Bi(OAr)2( 2-OAr)(<br />

OC6F5<br />

2-OC6F5<br />

2.088 (9), 2.147 (8)<br />

2.210 (8), 2.571 (7)<br />

iv,v<br />

6-toluene)]2 dimer with -bound toluene<br />

[Bi(OAr)2( 2-OAr)(THF)2]2.C6H14<br />

dimer<br />

OC6F5<br />

2-OC6F5<br />

OC6F5<br />

2.089 (8), 2.136 (8)<br />

2.168 (7), 2.555 (9)<br />

2.21 (1)<br />

2.132 (9)<br />

126<br />

126<br />

iv<br />

iv<br />

2-OC6F5<br />

2.198 (9), 2.75 (1)<br />

[Bi(OAr)2( 2-OAr)(THF)2]2<br />

dimer<br />

OC6F5 2.111 (3)<br />

2.151 (4)<br />

130<br />

130<br />

iv<br />

2-OC6F5<br />

2.245 (4), 2.661 (4)<br />

[NaBi( 2-OAr)4(THF)]1<br />

polymeric chain, square pyramidal Bi, basal THF<br />

2-OC6F5 Bi–O–Na<br />

2.16 (2), 2.41 (2)<br />

2.18 (2), 2.42 (2)<br />

2.31 (1), 2.24 (2)<br />

2.22 (2), 2.35 (2)<br />

vi<br />

(continued overleaf )

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