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SO 2 Activation by the Bis(guanidinato)silylene [ i PrNC(N i Pr 2 )N i Pr] 2 Si: Formation of Neutral Six‐Coordinate Silicon(IV) Complexes with a Chelating Sulfito or Dithionito Ligand
Author(s) -
Mück Felix M.,
Baus Johannes A.,
Bertermann Rüdiger,
Tacke Reinhold
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201600294
Subject(s) - chemistry , silylene , ligand (biochemistry) , crystallography , crystal structure , chelation , solid state , molar ratio , stereochemistry , silicon , medicinal chemistry , inorganic chemistry , catalysis , organic chemistry , biochemistry , receptor
Activation of SO 2 by the donor‐stabilized bis(guanidinato)silylene [ i PrNC(N i Pr 2 )N i Pr] 2 Si ( 7 ) leads to the six‐coordinate sulfitosilicon(IV) complex 12 (obtained by treatment of 7 with 1.5 molar equivalents of SO 2 in n ‐hexane) or the six‐coordinate dithionitosilicon(IV) complex 13 (a co‐crystallizate of cis ‐ 13 and trans ‐ 13 ; obtained by treatment of 7 with a vast excess of liquid SO 2 ). Compounds 12 and 13 were characterized by elemental analyses, crystal structure analyses, and multinuclear NMR spectroscopic studies in the solid state and in solution. The six‐coordinate silicon(IV) complexes 12 , cis ‐ 13 , and trans ‐ 13 represent very rare examples of main‐group element compounds with an O , O ‐chelating sulfito or dithionito ligand.