Na[W( 5 -C 5 H 5 )(CO) 3 ] reacts with 3-chloroprop-1-ene to give a solid, A,

Na[W(η⁵-C₅H₅)(CO)₃] reacts with 3-chloroprop-1-ene to give a solid, A, which has the molecular formula [W(C₃H₅) (C₅H₅)(CO)₃]. Compound A loses carbon monoxide on exposure to light and forms compound B, which has the formula [W(C₃H₅) (C₅H₅)(CO)₂]. Treating compound A with hydrogen chloride and then potassium hexafluoridophosphate, K⁺PF₆⁻, results in the formation of a salt, C, which has the molecular formula [W(C₃H₆) (C₅H₅)(CO)₃]PF₆. Use this information and the 18-electron rule to identify the compounds A, B, and C. Sketch a structure for each, paying particular attention to the hapticity of the hydrocarbons.