Need answer ASAP, I'll upvote in bulk

(5) (c) Provide a mechanism for the following transformation? PdCl2(PPh3)2 (3 mol%) Me OTf + H -Ph K2CO3 (3 eqv.), CH3CN 90 C, 16 hours Me -Ph (d) Stretching frequencies Vco for Ir(CO)2NHC complexes were determined by IR. Arrange the NHC (N- heterocyclic carbene) ligands in the increasing order of o-donor strength. (2) Ph N Ph (A) (B) (C) (D) 2050 cm 1 2054 cm 1 2056 cm 1 2046 cm 1