15692-07-6Relevant articles and documents
Photoreduction of Pt(IV) chloro complexes: Substrate chlorination by a triplet excited state
Perera, Tharushi A.,Masjedi, Mehdi,Sharp, Paul R.
supporting information, p. 7608 - 7621 (2014/08/05)
The Pt(IV) complexes trans-Pt(PEt3)2(Cl) 3(R) 2 (R = Cl, Ph, 9-phenanthryl, 2-trifluoromethylphenyl, 4-trifluoromethylphenyl, 3-perylenyl) were prepared by chlorination of the Pt(II) complexes trans-Pt(PEt3)2(R)(Cl) 1 with Cl 2(g) or PhICl2. Mixed bromo-chloro complexes trans,trans-Pt(PEt3)2(Cl)2(Br)(R) (R = 9-phenanthryl, 4-trifluoromethylphenyl), trans,cis-Pt(PEt3) 2(Cl)2(Br)(4-trifluoromethylphenyl), trans,trans- Pt(PEt3)2(Br)2(Cl)(R) (R = 9-phenanthryl), and trans,cis-Pt(PEt3)2(Br)2(Cl)(4- trifluoromethylphenyl) were obtained by halide exchange or by oxidative addition of Br2 to 1 or Cl2 to trans-Pt(PEt3) 2(R)(Br). Except for 2 (R = Ph, 4-trifluoromethylphenyl), all of the Pt(IV) complexes are photosensitive to UV light and undergo net halogen reductive elimination to give Pt(II) products, trans-Pt(PEt3) 2(R)(X) (X = Cl, Br). Chlorine trapping experiments with alkenes indicate a reductive-elimination mechanism that does not involve molecular chlorine and is sensitive to steric effects at the Pt center. DFT calculations suggest a radical pathway involving 3LMCT excited states. Emission from a triplet is observed in glassy 2-methyltetrahydrofuran at 77 K where photoreductive elimination is markedly slowed.
Towards a catalytic hydrogenolysis of silicon-silicon bonds: Formation of Si-H bonds from disilanes and H2 at platinum
Roscher, Anja,Bockholt, Andreas,Braun, Thomas
, p. 1378 - 1382 (2009/06/06)
Reactions of the disilanes Cl2MeSiSiMeCl2, ClMe 2SiSiMe2Cl and Me3SiSiMe3 led to the products of oxidative addition cis-[Pt(SiMeCl2)2(PEt 3)2] (2
Homo- and hetero-, bi- and tri-nuclear palladium(II) and platinum(II) complexes containing single bridging chalcogenolate of a metallo-ligand, [MCl(ECH2CH2NMe2)(PR3)] (M = Pt, Pd; E = Se, Te)
Dey, Sandip,Jain, Vimal K.,Butcher, Ray J.
, p. 1385 - 1390 (2008/10/09)
Bi- and tri-nuclear palladium/platinum complexes of the types [MCl(ECH2CH2NMe2)(PR3)M′Cl2(PR3)] (M, M′ = Pd or Pt) and [{PtCl(SeCH2CH2NMe2)(PR3)}2M′ Cl2] (M′ = Pd or Pt; PR3 = PEt3 or PPr3n) have been prepared. All complexes were characterized by elemental analysis, NMR (1H, 31P, 77Se, 125Te, 195Pt) data. The structures of [PdCl(SeCH2CH2NMe2)(PPh3)PtCl2(PPh3)] and [{PtCl(SeCH2CH2NMe2)(PEt3)}2PtCl2] have been established by single crystal X-ray diffraction analysis. In the latter complex, three square planar platinum atoms are held together by the single bridging selenolate group in an almost linear chain arrangement.
