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2 Homometallic Alkoxides

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313<br />

[W2⊲ -OCH2Bu t ⊳2⊲ -OCH2CH2CH2⊳⊲ 2 -<br />

OCHCH ž žCH2⊳⊲OCH2Bu t ⊳4]<br />

6 1 1.88 (2) (Bu t CH2O,<br />

av.)<br />

[W2⊲ -OCHMeCH2CH2⊳2⊲OCH2But⊳6] 6 1.840–1.913 (8)<br />

⊲ButCH2O⊳ av. 1.872<br />

2.025–2.167 (6)<br />

⊲ButCH2O⊳ av. 2.088<br />

– 331<br />

– – 331<br />

[W2⊲ -OCH2But⊳2⊲OCH2But⊳4⊲OCHCH ž žCHMe⊳2] 611.85 (2) (ButCH2O) 2.07 (3) (ButCH2O, av.)<br />

– 331<br />

[W2⊲ -OCMe2C2H4CMe2O⊳3] 411.870–1.879 (8)<br />

– 148.3–149.8 332<br />

av. 1.874<br />

av. 149.2<br />

[W2⊲ -OCMe2C2H4CMe2O⊳⊲ 2- 5<br />

OCMe2C2H4CMe2O⊳2⊲Me2NH⊳2]<br />

1 1.925–1.976 (9)<br />

– 126.7–148.8 332<br />

av. 1.954<br />

av. 136.2<br />

[W2⊲ -OPr i ⊳2⊲ -CO⊳⊲OPri⊳4⊲py⊳2] 6 1.91, 1.92 (2) 2.12, 2.15 (2) 132.3, 133.9 (t)<br />

134.7, 148.7 (b)<br />

234<br />

[W2⊲ -OBu t ⊳2⊲ -CO⊳⊲OBut⊳4] 5 1.852, 1.890 (10) 2.082, 2.099 (11) 147.2, 149.3 (t)<br />

134.3, 142.0 (b)<br />

333<br />

[W2⊲ -OPr i ⊳2⊲OPri⊳4⊲CO⊳4] 6 1.826–1.876 (12) 1.955, 1.967 (12) 107.4, 108.6 334<br />

av. 1.857<br />

(W[1])<br />

2.239, 2.258 (12)<br />

(W[2])<br />

(W[1])<br />

[W2⊲ -OBu t ⊳⊲ -C2Me2⊳⊲OBut⊳3⊲CO⊳] 5 1.876–1.923 (10) 2.064, 2.065 (10) 134.0–158.2 (t) 335<br />

av. 1.916<br />

av. 145.8<br />

139.7, 140.5 (b)<br />

[W2⊲ -OCCNMe2⊳2⊲OBut⊳6] 511.883–1.931 (6)<br />

– 129.0–150.7 335<br />

av. 1.911<br />

av. 140.6<br />

[W2⊲ -OCCNEt2⊳2⊲OPri⊳6⊲py⊳2] 611.923–1.952 (8)<br />

– 133.0–137.7 335<br />

av. 1.936<br />

av. 136.0<br />

(continued overleaf )

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