From alkaline earth to coinage metal carboranyls

Abstract

The β-diketiminato calcium and magnesium complexes, [(BDI)MgnBu] and [(BDI)CaH] (BDI = HC{C(Me)NDipp}2; Dipp = 2,6-di-isopropylphenyl), react with ortho-carborane (o-C2B10H12¬) to provide the respective [(BDI)Ae(o-C2B10H11)] (Ae = Mg or Ca) complexes....

Pathway to a molecular calcium methyl

“…The asymmetric unit of 3 contains two independent, but effectively identical, dimer halves and the following representative discussion refers only to the Ca1-containing molecule. Complex 3 provides Ca1 with two N–Ca contacts [2.3237(17) and 2.3253(16) Å], such that, in a manner reminiscent of the puckered geometry observed for [(BDI)Ca( o -C 2 B 10 H 11 )] and [(BDI)CaN(SiMe 3 ) 2 ], 18–20 the calcium centre is situated ca. 1.088 Å above the least squares plane defined by the BDI-backbone.…”