[Rh].Cl.OS(=O)(=O)c1cccc(c1)P(c2ccccc2)c3ccccc3.OS(=O)(=O)c4cccc(c4)P(c5ccccc5)c6ccccc6.OS(=O)(=O)c7cccc(c7)P(c8ccccc8)c9ccccc9