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Al-Jibori Subhi A. Al-Nassiri Ilham N. Al-Hayaly Lamaan J. Jassim Ayad H. 《Transition Metal Chemistry》2002,27(2):191-195
Transition metal complexes containing two types of ligands: 5-phenyl-1,3,4-oxadiazole-2-thione ion (L) and tertiary phosphines, have been prepared. The complexes, [ML2A2] [M = Pd or Pt; A = PPh3 or Ph2PCH2CH2P(O)Ph2] and [ML2B] (M = Co, Ni, Pd or Pt; B = Ph2PCH2PPh2 or Ph2PCH2CH2PPh2), were characterized by elemental analysis, molar conductance, i.r., u.v.–vis., 31P-n.m.r., magnetic susceptibility measurements and mass spectra. 相似文献
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Substituted phosphines of the type Ph2PCH(R)PPh2 and their PtII complexes [PtX2{Ph2PCH(R)PPh2}] (R = Me, Ph or SiMe3; X = halide) were prepared. Treatment of [PtCl2(NCBut)2] with Ph2PCH(SiMe3)-PPh2 gave [PtCl2(Ph2PCH2PPh2)], while treatment with Ph2PCH(Ph)PPh2 gave [Pt{Ph2PCH(Ph)PPh2}2]Cl2. Reaction of p-MeC6H4C≡CLi or PhC≡CLi with [PtX2{Ph2PCH(Me)PPh2}] gave [Pt(C≡CC6H4Me-p)2-{Ph2PCH(Me)PPh2}] (X = I) and [Pt{Ph2PC(Me)PPh2}2](X = Cl),while reaction of p-MeC6H4C≡CLi with [Pt{Ph2PCH(Ph)PPh2}2]Cl2 gave [Pt{Ph2PC(Ph)PPh2}2]. The platinum complexes [PtMe2(dpmMe)] or [Pt(CH2)4(dpmMe)] fail to undergo ring-opening on treatment with one equivalent of dpmMe [dpmMe = Ph2PCH(Me)PPh2]. Treatment of [Ir(CO)Cl(PPh3)2] with two equivalents of dpmMe gave [Ir(CO)(dpmMe)2]Cl. The PF6 salt was also prepared. Treatment of [Ir(CO)(dpmMe)2]Cl with [Cu(C≡CPh)2], [AgCl(PPh3)] or [AuCl(PPh3)] failed to give heterobimetallic complexes. Attempts to prepare the dinuclear rhodium complex [Rh2(CO)3(μ-Cl)(dpmMe)2]BPh4 using a procedure similar to that employed for an analogous dpm (dpm = Ph2PCH2PPh2) complex were unsuccessful. Instead, the mononuclear complex [Rh(CO)(dpmMe)2]BPh4 was obtained. The corresponding chloride and PF6 salts were also prepared. Attempts to prepare [Rh(CO)(dpmMe)2]Cl in CHCl3 gave [RhHCl(dpmMe)2]Cl. Recrystallization of [Rh(CO)(dpmMe)2]BPh4 from CHCl3/EtOH gave [RhO2(dpmMe)2]BPh4. Treatment of [Rh(CO)2Cl2]2 with one equivalent of dpmMe per Rh atom gave two compounds, [Rh(CO)(dpmMe)2]Cl and a dinuclear complex that undergoes exchange at room temperature between two formulae: [Rh2(CO)2(μ-Cl)(μ-CO)(dpmMe)2]Cl and [Rh2(CO)2-(μ-Cl)(dpmMe)2]Cl.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
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