Heteropolymetallic complexes of 1,1′-Bis(diphenylphosphino)ferrocene (dppf). III. Comparative physicochemical properties of (dppf)MCl2 (M = Co, Ni, Pd, Pt, Zn, Cd, Hg)

Late Transition Metal Compounds with 1,1′‐Bis(phosphino)ferrocene Ligands

“…The [(AuCl) 2 (PP)] compounds of 1, [8] 2, [3] 3, [9] 4, [10] 5, [4] 1,1′-bis(phenylphosphino)ferrocene, [11] 1,1′-bis(dimethylaminophosphino)ferrocene, [12] [Fe(C 5 H 4 -μ-PNtBu) 2 ], [13] and 1,1′-bis[2,5-bis(2-pyridyl)phospholyl]ferrocene [14] have been reported. The oxidative electrochemical behaviors of the 1, [10] 2, [3] 3, [9] 4, [10] 5, [4] and 1,1′-bis(dimethylaminophosphino)ferrocene [12] compounds have been examined, and they exhibited reversible waves, presumably owing to oxidation at the iron center.…”

“…The oxidative electrochemical behaviors of the 1, [10] 2, [3] 3, [9] 4, [10] 5, [4] and 1,1′-bis(dimethylaminophosphino)ferrocene [12] compounds have been examined, and they exhibited reversible waves, presumably owing to oxidation at the iron center. However, the chemical oxidation of [(AuCl) 2 (1)] led to a product that did not contain Fe III . [15] The chlorido ligands on the gold atoms are susceptible to substitution, and there are numerous examples of simple substitution reactions with other X-type ligands.…”

“…[16] In addition to these reactions, there are two studies in which the chlorido ligand can be removed to give a very different type of product. [(AuCl) 2 {1,1′-bis(phenylphosphino)-ferrocene}] undergoes hydrodehalogenation to yield an insoluble product that is formulated as [Au 2 {(C 5 H 4 PPh) 2 Fe}] x . [11] The polymer [AuCl(1)] x can be formed by the addition of 1 to either [(AuCl) 2 (1)] [17] or [AuCl(tetrahydrothiophene)].…”

“…[(AuCl) 2 {1,1′-bis(phenylphosphino)-ferrocene}] undergoes hydrodehalogenation to yield an insoluble product that is formulated as [Au 2 {(C 5 H 4 PPh) 2 Fe}] x . [11] The polymer [AuCl(1)] x can be formed by the addition of 1 to either [(AuCl) 2 (1)] [17] or [AuCl(tetrahydrothiophene)]. [18] 4 ] were also examined.…”

A comparative kinetic study of modified Pt(dppf)Cl2 complexes and their interactions with l-cys and l-met

“…In contrast, the reaction with cisplatin resulted in an absorbance increase. This absorbance maximum is due to a charge transfer band of the Pt(II) complexes, 22 and has a large extinction coefficient for the dppf containing complexes (∼5 × 10 4 M −1 cm −1 ). The extinction coefficient for cisplatin at this wavelength is an order of magnitude lower (∼5 × 10 3 M −1 cm −1 ).…”