Metal-promoted alkyne trimerisation leading to novel metallacycles. The molecular structures of [Mo{η<sup>3</sup>-C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(Me)C(Ph)SPr<sup>i</sup>}(CF<sub>3</sub>CCCF<sub>3</sub>)(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)], [WSPr<sup>i</sup>{η<sup>5</sup>-C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(Me)C(Ph)}(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)], and [W(SC<sub>6</sub>H<sub>4</sub>Me-4){η<sup>4</sup>-C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(CO<sub>2</sub>Me)C(CO<sub>2</sub>Me)C(CF<sub>3</sub>)C(CF<sub>3</sub>)}(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)] - Concepedia

Concepedia

Publication | Closed Access

Metal-promoted alkyne trimerisation leading to novel metallacycles. The molecular structures of [Mo{η<sup>3</sup>-C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(Me)C(Ph)SPr<sup>i</sup>}(CF<sub>3</sub>CCCF<sub>3</sub>)(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)], [WSPr<sup>i</sup>{η<sup>5</sup>-C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(Me)C(Ph)}(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)], and [W(SC<sub>6</sub>H<sub>4</sub>Me-4){η<sup>4</sup>-C(CF<sub>3</sub>)C(CF<sub>3</sub>)C(CO<sub>2</sub>Me)C(CO<sub>2</sub>Me)C(CF<sub>3</sub>)C(CF<sub>3</sub>)}(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)]

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Citations

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References

1989

Year

Naz M. Agh‐Atabay, Jack L. Davidson, Graeme Douglas, Kenneth W. Muir

Journal of the Chemical Society Chemical Communications

Abstract

Addition of alkynes to isomeric η2-C,C-vinyl [M{η3-C(CF3)C(CF3)SR′}(CF3CCCF3)(η5-C5H5)](M = Mo, W; R′= Pri) and bis-alkyne complexes [MSR′(CF3CCCF3)2(η5- C5H5)](M = W, R′= 4-MeC6H4) gives new metallacycles formed by linking of two or three alkynes; X-ray analyses reveal two modes of bonding for the tris alkyne (CR)6 ligands.