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2 Homometallic Alkoxides

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632 Alkoxo and Aryloxo Derivatives of Metals<br />

Table 6.45 Simple aryloxides of zinc<br />

Bond Bond<br />

length ( ˚A) angle ( Ž )<br />

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

[Zn⊲ 2-OAr⊳3Zn⊲ 2-OAr⊳3Zn]<br />

central ZnO6 and outer ZnO3P3<br />

units<br />

2-OC6H4PPh2-2 2.12 (3)–2.148 (3) i<br />

[Zn(OAr) 2⊲PMePh2⊳] OC6H3But trigonal planar Zn<br />

2-2,6 1.844 (4)<br />

1.864 (4)<br />

136<br />

124<br />

ii<br />

[Zn(OAr) 2⊲PCy3⊳] OC6H3But trigonal planar Zn<br />

2-2,6 1.869 (4)<br />

1.875 (4)<br />

138<br />

141<br />

ii<br />

[K(THF) 6][Zn(OAr) 3] OC6H3But trigonal planar Zn<br />

2-2,6 1.89 (2)<br />

1.86 (2)<br />

126<br />

139<br />

iii<br />

1.85 (2)<br />

134<br />

[Zn(OAr) 2⊲THF⊳2] OC6H2But distorted tetrahedral Zn<br />

3-2,4,6 1.889 (7)<br />

1.885 (6)<br />

126<br />

133<br />

iv, v<br />

[Zn(OAr) 2⊲OEt2⊳2]<br />

distorted tetrahedral Zn<br />

OC6H3Ph2-2,6 1.886 (6) 127 vi<br />

[Zn(OAr) 2⊲thf⊳2] OC6H3Ph2-2,6 1.864 (4) 122 vi<br />

distorted tetrahedral Zn 1.864 (4) 133<br />

[Zn(OAr) 2⊲thf⊳2] OC6H3Pri distorted tetrahedral Zn<br />

2-2,6 1.85 (1)<br />

1.86 (1)<br />

127<br />

127<br />

vi<br />

[Zn(OAr) 2⊲thf⊳2] OC6H3But distorted tetrahedral Zn<br />

2-2,6 1.873 (5)<br />

1.878 (5)<br />

134<br />

131<br />

vi<br />

[Zn(OAr) 2⊲PC⊳2] OC6H3But propylene carbonate, distorted<br />

tetrahedral Zn<br />

2-2,6 1.85 (1) 155 vi<br />

[Zn(OAr) 2⊲py⊳2]<br />

distorted tetrahedral Zn<br />

OC6H2Me3-2,4,6 1.885 (4) 137 vi<br />

[Na⊲ 2-OAr⊳3Zn⊲OH2⊳] 2-OC6H3Ph2-2,6 Zn–O–Na vii<br />

tetrahedral Zn, Na -bound to<br />

1.954 (5), 2.301 (6)<br />

ortho-phenyl rings<br />

[⊲thf⊳2Na(ArO)ClZn⊲ 2-<br />

OAr⊳2Zn(OAr)(thf)]<br />

tetrahedral Zn, Na -bound to<br />

OC6H3Pr<br />

ArO nucleus and bound to Cl<br />

i 2-2,6 2-OC6H3Pri 2-2,6 1.84 (1)<br />

1.90 (1)<br />

1.95 (1), 2.03 (1)<br />

133<br />

130<br />

vii<br />

1.98 (1), 1.98 (1)<br />

[Zn(OAr)⊲OAr 0 ⊳] OC6H3Br2-2,4- 3-O,N,N- OC6H2But 2-py-pic [Et3NH][Zn(OAr)Cl2] tetrahedral Zn, cation hydrogen<br />

bonded to chelated O(Ar)<br />

1.982 (11)<br />

1.914 (9)<br />

OC6H3Ph-4-CH2NEt2-2 1.947 (2)<br />

139<br />

121<br />

119<br />

viii<br />

ix<br />

[PhZn⊲ 3-OAr⊳Zn(pac) 2 ]2<br />

pac D 1,1,1-Me3-acac, 4- and<br />

6-coord. Zn<br />

3-OC6H5<br />

2.04 (1), 2.17 (2),<br />

2.20 (1)<br />

x<br />

[EtZn⊲ 2-OAr⊳2ZnEt]<br />

trigonal planar Zn<br />

2-OC6H3But 2-2,6 1.970 (1), 1.990 (1) xi<br />

[Me3SiCH2Zn⊲ 2-<br />

OAr⊳2ZnCH2SiMe3]<br />

2-OC6H2But trigonal planar Zn<br />

3-2,4,6 1.958 (4), 2.021 (4) xii

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