The X-ray crystal structure of trans-bis(sulphur dioxide)tetrakis(triphenylphosphineoxide)manganese(II) di-iodide, a compound which undergoes demi-reversible binding of sulphur dioxide: the first crystallographically characterised example of O-bonded sulphur dioxide in a transition metal complex
Abstract
The X-ray crystal structure of the complex trans-[Mn(OPPh3)4(SO2)2]I2 shows it to contain O-bonded Sulphur dioxide groups; one of these can be lost to form Mn(OPPh3)4(SO2)I2, and the reaction is reversible.