111101-57-6Relevant academic research and scientific papers
The mechanism of protonolysis of phenylplatinum(II) bonds in complexes with phenyl trans to nitrogen or carbon donors
Ong, Christopher M.,Jennings, Michael C.,Puddephatt, Richard J.
, p. 1196 - 1205 (2007/10/03)
Addition of acids of the form HX (X = Cl, BF4, CF 3SO3, CF3CO2) to complexes [PtPh2(NN)] (NN = bu2bpy = 4,4′-di-ferf-butyl-2, 2′-bipyridine) and [PtPh(NCN)] (NCN = 2,6-C6H 3(CH2NMe2)2) at -78°C gave the corresponding phenyl(hydrido)platinum(IV) complexes [PtX(H)Ph2(NN)] and [PtX(H)Ph(NCN)], which decomposed by reductive elimination of benzene at about -20°C to give the platinum(II) complexes [PtXPh(NN)] and [PtX(NCN)]. Further addition of HCl to [PtClPh(NN)] at low temperature gave [PtHCl 2Ph(NN)], which decomposed above -10°C, to give benzene and [PtCl2(NN)]. The reaction of DBF4 in the presence of excess CD3OD with [PtPh2(NN)] led to formation of C 6H5D and C6H4D2 but with [PtPh(NCN)] no multiple deuterium incorporation was observed in the product benzene. The mechanisms of these reactions are discussed.
Synthesis and Structural Aspects of Rigid Aryl-palladium(II) and-Platinum(II) Complexes. X-ray Crystal Structure of o,o'-Bis(dimethylamino)methyl>phenylplatinum(II) Bromide
Terheijden, Jos,Koten, Gerard Van,Muller, Fred,Grove, David M.,Vrieze, Kees,et al.
, p. 401 - 418 (2007/10/02)
The tridentate monoanionic ligand o,o'-(Me2NCH2)2C6H3 (NCN') has been used to synthesize novel aryl-palladium(II) and -platinum(II) complexes and (M= Pt, Pd).Three synthetic procedures are described, namely: (i) reaction of the cationic complex + with KX or NaX to give (X= Cl, I, O2CH, NCS, NO2, NO3); (ii) displacement reactions using AgX with to give (X= CN, O3SCF3, O2CMe, O2CCF3) and (iii) transmetallation reactions of with organolithium to give (R= Ph, o-, m-, p-tolyl, CCPh, CC-p-tolyl).All the complexes have been characterized by elemental analysis IR, 1H NMR and 13C NMR spectroscopy.An X-ray diffraction study has shown that (2) has a square-planar structure, in which the tridentate ligand is bonded via C(ipso) (Pt-C 1.90(1) Angstroem, and two mutually trans-N donor atoms (Pt-N(1) 2.07(1), Pt-N(2) 2.09(1) Angstroem.The fourth site trans to C(ipso) is occupied by bromine (Pt-Br 2.526(2) Angstroem).The two chelate rings (N-Pt-C(ipso) 82.9(5) and 81.5(5) grade) are distinctly puckered, with the two NMe2 groups on opposite sides of the aryl plane.The Pt-C bond in 2 is shorter than analogous bonds in other arylplatinum(II) complexes, as a result of (i) the rigid structure of the tridentate ligand and (ii) the presence of two hard N donor atoms trans to one another across the platinum centre.
