Synthesis, Properties, and X-Ray Crystal and Molecular Structures of Homoleptic Alkenyls of Tin and Chromium t
نویسندگان
چکیده
In the preceding paper we reported the discovery of a tin(1v) derivative obtained by intermolecular oxidative addition to an organotin(m) species.' In the present paper we give details of the synthesis of a tetra-alkenylchromium(1v) complex starting from a chromium(r1r) species, and of the analogous tin(1v) compound obtained from SnCI, by simple metathetical exchange. The X-ray data provide an unusual opportunity for detailed structural comparisons to be made between a transition metal organometallic and an exactly analogous main-group compound. Both compounds have been mentioned in preliminary publication^.^-^
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