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2 Homometallic Alkoxides

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343<br />

[Na⊲ , 2 -OR⊳2Sm⊲ 2 -OR 0 ⊳]<br />

R D C(CMe 3⊳⊲2-CH2NC5H3Me-6⊳2<br />

R 0 D C(CMe 3⊳; (2-2CHNC5H3Me-6⊳<br />

4 6 SmO, 2.239 (4) (c) NaO, 2.322 (5)<br />

SmO, 2.222 (5)<br />

[NaTh2⊲ 3-OBu t ⊳2⊲ -OBu t ⊳3⊲OBu t ⊳2] 4 6 ThO, 2.152, 2.157 (8) NaO, 2.400 ( 3, av.)<br />

2.607 (10) ⊲ ⊳<br />

ThO, 2.491 ( 3, av.)<br />

2.372 ( ,av.)<br />

[Na⊲ -OPr i ⊳4Ti⊲OPr i ⊳]1 4 5 1.811 (10) NaO, 2.288, 2.320 (9)<br />

TiO, 1.865–1.936 (8)<br />

[NafMo3⊲CO⊳6⊲NO⊳3⊲ -<br />

OMe⊳3⊲ 3-O⊳g2]<br />

av. 1.899<br />

6 6 – NaO, 2.41, 2.41, 2.44 (1)<br />

MoO, 2.05 ( 3, av.)<br />

2.19 ( ,av.)<br />

[Na4Cr2⊲ 3-OPr i ⊳8⊲thf⊳4] 5 4 – NaO, av. 2.429<br />

CrO, av. 1.989<br />

[⊲thf⊳4Na2f -O(SiPh2O⊳2g2Cr] 4 4 NaO(thf), av. 2.271 NaO, av. 2.226<br />

CrO, av. 1.986<br />

[⊲diglyme)Na⊲ -H⊳⊲ -OPr i ⊳4W2⊲OPr i ⊳4] 5 6 NaO(diglyme) NaO, av. 2.324<br />

av. 2.457<br />

WO, av. 1.965<br />

WO, av. 2.058<br />

[Na⊲ 3-OMe⊳4fTc(CO⊳3g3] 3 6 – NaO, av. 2.388<br />

TcO, av. 2.167<br />

[Na2f -OCH(CF3⊳2g4Cu] 71 4 – NaO, 2.281, 2.318 (6)<br />

CuO, 1.916, 1.968 (5)<br />

[Na4Cu4⊲ 3-OCEt3⊳4⊲ -OCEt3⊳4] 3 2 – NaO, av. 2.271<br />

CuO, av. 1.831<br />

NaO, 119.3 (b)<br />

SmO, 143.3–146.4 (b)<br />

ThO, 167.0, 168.1 (t)<br />

NaO, 114.5, 120.3 (b)<br />

ThO, 125.8–158.2 (b)<br />

138<br />

145<br />

– 473<br />

MoO, 116.6–119.9 (b) 474<br />

– 475<br />

CrOSi, av. 131.3 476<br />

WO, 123.2–137.4 (t) 313<br />

NaO, 127.5, 128.9 (b)<br />

WO, 127.1–146.8 (b)<br />

– 477<br />

– 478<br />

– 465<br />

(continued overleaf )

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