New aryl phosphinite ligands avoiding ortho-metallation: Synthesis and molecular structures of trans-[PdCl2(PPh2OR)2] and trans-[Rh(CO)Cl(PPh2OR)2] (RÂ =Â 2,4,6-Me3C6H2; 2,6-Ph2C6H3)

The new aryl phosphinites 1 and 2 allow trans coordination in square-planar palladium(II) and rhodium(I) complexes, avoiding ortho-metallation thanks to the blocking of the ortho-positions in the O-aryl substituent.