Stibasilene
SbSi and Its Lighter Homologues:
A Comparative Study
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Abstract
The multiply bonded derivatives of
the heavier main group elements
are among the most challenging targets for synthetic pursuits. Those
of them featuring a double bond between the silicon and group 15 element
are represented mostly by the silaimines <i>N</i>Si< and phosphasilenes PSi<
with a very few examples
of arsasilenes AsSi<. In this contribution, we
report on the synthesis and structural elucidation of the first stable
stibasilene and novel phosphasilene and arsasilene derivatives, featuring
an identical substitution pattern. A systematic comparison within
the series phosphasilene–arsasilene–stibasilene is made
on the basis of their experimental and computational studies
