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Synthesis and Characterization of Group 12 Metal(I) Complexes Bearing Extremely Bulky Boryl/Silyl Substituted Amide Ligands
Author(s) -
Juckel Martin,
Dange Deepak,
de BruinDickason Caspar,
Jones Cameron
Publication year - 2020
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201900229
Subject(s) - silylation , amide , chemistry , metal , halide , yield (engineering) , medicinal chemistry , crystallography , group (periodic table) , stereochemistry , inorganic chemistry , organic chemistry , materials science , catalysis , metallurgy
Two extremely bulky boryl/silyl‐substituted amide ligands, –N{B(DipNCH) 2 }(SiR 3 ) (R = Me TBo L, R = Ph PhBo L; Dip = 2,6‐diisopropylphenyl) were used in the preparation of the group 12 metal halide complexes, PhBo LZnBr, { TBo LCd(μ‐I)} 2 , TBo LHgI, and PhBo LHgI. The reduction of these, and two previously reported compounds, PhBo LZnBr(THF) and { PhBo LCd(μ‐I)} 2 , using a magnesium(I) compound, {( Mes Nacnac)Mg} 2 ( Mes Nacnac = [(MesNCMe) 2 CH] – , Mes = mesityl), were carried out, leading to mixed results. In several cases these reactions led to decomposition, and deposition of the group 12 metal. However, in two instances the homobimetallic metal(I) complexes, TBo LM–M TBo L (M = Zn or Hg), were isolated and crystallographically characterized. The reduction of { PhBo LCd(μ‐I)} 2 afforded the known cadmium(I) complex, PhBo LCd–Cd PhBo L, but also gave a very low yield of the thermally unstable complex, PhBo LCd–Mg(THF)( Mes Nacnac). The X‐ray crystal structure of this compound reveals it to contain the first example of a Cd–Mg bond in a molecular compound.