Group 14 triple-decker cations |
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Authors: | Jones Jamie N Moore Jennifer A Cowley Alan H Macdonald Charles L B |
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Affiliation: | Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA. |
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Abstract: | The triple-decker cations trans-[(Cp*Sn)(2)(mu-eta(5):eta(5)-Cp*)](+) and trans-[(Cp*Pb)(2)(mu-eta(5):eta(5)-Cp*)](+) have been prepared and structurally characterized as their [B(C(6)F(5))(4)](-) salts from the reactions of [Cp*M][B(C(6)F(5))(4)](M = Sn, Pb) with the appropriate decamethylmetallocene. Both triple-decker cations adopt a cisoid arrangement of terminal Cp* groups, whereas the two known triple-decker main-group anions possess a transoid arrangement of terminal Cp groups. The reason for this conformational difference has been probed on the basis of DFT calculations. |
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