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Isolation and crystallographic characterization of solvate- and anion-stabilized PCP pincer complexes of palladium(II) |
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| Authors: | Kian Eang Neo Han Vinh Huynh Lip Lin Koh William Henderson TS Andy Hor |
| Institution: | 1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore;2. Department of Chemistry, University of Waikato, Private Bag 3105, Hamilton, New Zealand;1. Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA;2. Department of Chemistry, Texas A&M University, College Station, TX 77843, USA;3. Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA |
| Abstract: | Pincer PCP-Pd(II) complex PdCl(PCP)] (1) (PCP = ?CH(CH2CH2PPh2)2) reacts with AgNO3 to give Pd(NO3)(PCP)] (2). Similar reaction with AgBF4 gives the aqua complex Pd(OH2)(PCP)]BF4] (3) and the dinuclear complex {Pd(PCP)}2(μ-Cl)]BF4] (4) with singly bridging chloro ligand. All new complexes were characterized by NMR spectroscopy, ESI-MS and single-crystal X-ray diffraction. Complex 1 and the triflate complex Pd(OTf)(PCP)] (5) are active towards Suzuki–Miyaura coupling between aryl bromides and phenyl boronic acid. |
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