Abstract
The first two members of a new family of nitrogen-donor ligands, the bis(pyrazolyl)silanes Me 2Si(3,5-R 2pz) 2 (R=H, Me), have been readily synthesized in almost quantitative yield from Me 2SiCl 2 and the alkali metal pyrazolates M(3,5-R 2pz) (M=Li or Na). Both bidentate ligands, abbreviated Bps and Bps Me 2 , respectively, have been used to prepare the zinc derivatives LZnX 2 (L=Bps, Bps Me 2 ; X=Cl, Br, I), all of which have been characterized by a combination of analytical and spectroscopic techniques and, in the case of (Bps Me 2 )ZnI 2, also by single-crystal X-ray diffraction.
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