Manganese and Cesium Derivatives of the Bulky\nBidentate Ligand C(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>C.\nCrystal Structures of Li(THF)<sub>2.75</sub>(Et<sub>2</sub>O)<sub>0.25</sub>(μ-Cl)-\nMnC(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>C and\n(C<sub>6</sub>H<sub>6</sub>)<sub>3</sub>CsC(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>CCs(C<sub>6</sub>H<sub>6</sub>)<sub>3</sub>
Colin Eaborn (2968656)Peter B. Hitchcock (2009605)J. David Smith (791436)Suobo Zhang (2010139)William Clegg (1265970)Keith Izod (1580347)Paul O'Shaughnessy (2961582)
Abstract
The reaction between the lithate and MnCl<sub>2</sub>\nhas given a chloride-bridged high-spin lithium manganate, isolated as shown by an X-ray study\nto contain three-coordinate planar manganese. The\nligand precursor HC(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>CH reacts with methylcesium to give a compound\nisolated after recrystallization from benzene as (C<sub>6</sub>H<sub>6</sub>)<sub>3</sub>CsC(SiMe<sub>3</sub>)<sub>2</sub>SiMe<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Me<sub>2</sub>Si(Me<sub>3</sub>Si)<sub>2</sub>CCs(C<sub>6</sub>H<sub>6</sub>)<sub>3</sub>, in\nwhich benzene solvate molecules show a variety of\nhapticities.
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