The Tetrameric Aluminum(<scp>I</scp>) Compound [{Al(η⁵‐C₅Me₅)}₄]

Abstract

The tetrameric, η5-coordinated aluminum(I) compound [{Al(C5Me5)}4] (1) is stable at room temperature. It was prepared from AlCl and [Mg(C5Me5)2]. In this cluster, four Al atoms form a regular tetrahedron and the planes of the C5Me5 rings lie nearly parallel to the respective faces of the tetrahedron. (see also Highlight on p. 544).