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A Synthetic Approach to Novel Group 13/15 Element Complexes

Leiner, Eva and Scheer, Manfred (2002) A Synthetic Approach to Novel Group 13/15 Element Complexes. Organometallics 21 (21), pp. 4448-4453.

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Abstract

The gallium chloro complex [GaCl ${Fe(CO)2Cp}$ 2] (Cp = η5-C5H5) was reacted with KP(SiMe3)2 under special conditions to yield the complexes [ ${CpFe(CO)}$ 2 ${μ-(CO)}$ [μ-Ga ${CpFe(CO)2}$ ]] (1) and [ ${CpFe(CO)2}$ GaP(SiMe3)]4 (2). Furthermore, [[ ${CpFe(CO)2}$ ClGa](μ-PPh2)2FeCpCO] (4) was obtained by the reaction of [GaCl ${Fe(CO)2Cp}$ 2] with LiPPh2. Complexes 1, 2, and 4 have been characterized spectroscopically and by X-ray structure analysis. Complex 2 represents an ideal Ga4P4-heterocubane, the first Ga-containing example of this structural type with organometallic substituted group 13 elements. In the solid state compound 4 possesses an almost planar GaPFeP four-membered ring, a novel structural motif in mixed group 13/15 chemistry.