Text this: A Rapid General Synthesis and the Spectroscopic Data of 2,2′-Bis-(di-isopropylphosphino)-1,1′-dibromoferrocene, (<i>bpdbf</i>), 1,1′,2,2′-Tetrakis-(di-isopropylphosphino) Ferrocene, (<i>tdipf</i>) and Related Ligands: Taking <i>dppf</i> into the Future