Subtlety in the reactivity of a diketo phosphorus ylide towards mercuric halides: the unprecedented O-coordination of alpha-acetyl-alpha-benzoylmethylenetriphenylphosphorane to Hg(II).
The reactions of the title ylide with HgX2 (X = Cl, Br or I) lead to the regiospecific binding of the acetyl oxygen to soft Hg(II), producing a chloro complex with (2 + 2) coordination and isostructural dimeric bromo and iodo complexes containing halogen bridges with tetrahedral configurations around the metal centres.
Laavanya
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P
Department of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, India. pan@bdu.ernet.in
Venkatasubramanian
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U
Panchanatheswaran
K
K
Bauer
J A
JA