Platinum, - 1,5-cyclooctadiene dimethyl

Dichloro(l,5-cyclooctadiene)platinum(II) is a white, air-stable solid. The compound is slightly soluble in solvents such as chloroform, acetic acid, sulfolane (tetrahydrothiophene 1,1-dioxide), and nitromethane. It decomposes slowly upon dissolution in dimethyl sulfoxide. The p.m.r. spectrum of the compound in chloroform shows resonances at 4.38r, /pt H = 65 Hz., for the olefinic protons and 7.29-r for the methylene protons. The infrared spectrum in Nujol has strong absorption maxima at 1334, 1179, 1009, 871, 834, and 782 cm.-1. 

QH P, Phosphine, dimethylphenyl-, iron complex, 26 61 molybdenum complex, 27 11 osmium complex, 27 27 osmium-rhodium complex, 27 29 osmium-zirconium complex, 27 27 ruthenium complex, 26 273 CkH,2, 1,5-Cyclooctadiene, iridium complex, 26 122, 27 23 osmium-rhodium complex, 27 29 ruthenium complexes, 26 69-72, 253-256 CbH 20,PS, 2-Butenedioic acid, 2-(dimeth-ylphosphinothioyl)-, dimethyl ester, manganese complex, 26 163 ChH,4, Cyclooctene, platinum complex,... 

The development of nanocomposites containing metal particles may be very rewarding since such materials can be useful in catalysts, an optical and electronic devices. Figure 16.18 shows the schematic diagram of the method of synthesis. The polymers used in this material were poly(4-methyl-l-pentene) and poly(te-trafluoroethylene). Dimethyl(cyclooctadiene)platinum(II) was used as the metal precursor. The metal precursor was dissolved in supercritical liquid carbon dioxide... 

Erkey and co-workers [59-61] prepared Pt- and Ru-doped carbon aerogels using a supercritical deposition method. This involved dissolution of an organometallic precursor in a supercritical fluid and the exposure of a solid substrate to this solution. After impregnation of the support with the metal precursor, it was converted to the metal form by different methods. Dimethyl(l,5-cyclooctadiene) platinum(ll) was used as a precursor for Pt [59,60], and two different Ru complexes, trisacetylacetonate Ru(lll) and Ru(cod)(tmhd)2, were used for Ru [61], Monolithic organic and carbon aerogels... 

Specific physicochemical properties of the supercritical fluids offer flexible alternatives to established processes like chemical vapor deposition (CVD), which is used in the preparation of high-quality metal and semiconductor thin films on solid surfaces. Watkins et al. [43] reported a method named chemical fluid deposition (CFD) for the deposition of CVD-quality platinum metal films on silicon wafers and polymer substrates. The process proceeds through hydrogenolysis of dimethyl-(cyclooctadiene)platinum(ll) at 353 K and 155 bar. 

Varying the kinetics of decomposition of the precursors was profitable for the controlled synthesis of RuPt NPs. Whilst the co-decomposition of [Ru(COD(COT)] and [Pt(dba)2] in the presence of polyvinylpyrrolidone as stabilizer led to a RuPt alloy with a fee structure, core-shell RuPt NPs were obtained in PVP, using [Pt(CH3)2(COD)] (i.e., [dimethyl(l,5-cyclooctadiene) platinum (II)]) instead of [Pt(dba)2] [91]. This is related to the slower rate of decomposition of [Pt(CH3)2(COD)]. In summary, the chemical order can be controlled via the choice of the precursor. The chemical segregation leading to core-shell RuPt results from kinetic (decomposition rate of the metal precursors) and thermodynamic (preferred location of each metal in the particle) parameters as well as from the steric... 

Conformal deposition and nanohole fill using dimethyl(l,5-cyclooctadiene)platinum(II) (Pt(cod)Me2)[8,9] and (ethylcyclopentadienyl)trimethyl platinum (MeCpPtMe3)[10] as a precursor has been already reported. These compounds are less stable and are not affordable. Contraiily, Pt(hfac)2 is a very common compound and is widely available. In addition, Pt fill in nano features has been rarely reported to the author s knowledge except our studies[ 11,12]. In the present study, we report Pt coat and fill of Pt in the nano-sized features by using Pt(hfac)2. We focused mainly on the dependence of substrate surfaces on the Pt growth. 

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