Metal sulfur dioxide complex

Historically, the study of these compounds has provided insights into the mechanisms of migratory insertion reactions.

[3] A large number of labile O-bonded SO2 complexes arise from the oxidation of a suspension of the metals in liquid SO2, an excellent solvent.

[2] The main reaction of sulfur dioxide promoted by transition metals is its reduction by hydrogen sulfide.

The "insertion" proceed the sulfur dioxide between the metal and the alkyl ligand leads to the O, O'-sulphinate.

[6] The pathway by which SO2 inserts into a square planar alkyl complexes involves the formation of an adduct.

[10] Mo2(S2O)2(S2CNEt2)4 arises when the dithiocarbamate complex Mo(CO)2(S2CNEt2)2 is oxidized with elemental sulfur in air.

Portion of the structure of [Ni(SO 2 ) 6 ](AsF 6 ) 2 , showing the dication and one of two AsF 6 − anions. [ 2 ]
Illustrative SO 2 complexes of soft metal centers. From the left, Fe(CO) 2 [ P(OPh) 3 ] 2 (η 1 -SO 2 ), IrCl(CO)(PPh 3 ) 2 (η 1 -SO 2 ), Mo(CO) 2 ( PMe 3 ) 3 (η 2 -SO 2 ), and the A-frame complex Rh 2 ( bis(diphenylphosphino)methane ) 2 Cl(CO) 2 ( μ-SO 2 ).
Pathway for insertion of SO 2 into Au-methyl bonds of a square planar Au(III)) complex.