1-Triphenylstannyl-2,4,5-tritertiarybutyl-1,3-diphosphole, image: Preparation, X-ray crystal structure, theoretical studies and solution fluxional behaviour

The 1-triphenylstannyl-2, 4, 5-tritertiarybutyl-1,3-diphosphole, View the MathML sourcePh3SnP2C3Bu3t, which has been synthesised from Ph3SnCl and View the MathML sourceKP2C3Bu3t, has been fully structurally characterised in the solid state but in solution undergoes ready intra-molecular shifts of the Ph3Sn-group around the 1,3-diphospholyl ring. Theoretical calculations concerning both the structure and the dynamic process are presented and discussed.