CS2, reactions

The reaction of OH with COS is significantly slower than the CS2 reaction, with a rate constant at 298 K of 2.0 X 10 15 cm3 molecule- 1 s- 1 (Atkinson etal., 1997a, 1997b). At an OH concentration of 1 X 106 radicals cm-3, this gives a lifetime with respect to this reaction of about 16 years, far too long to be a significant removal path in the troposphere. Unlike the CS2 reaction, the reaction of OH with COS is independent of pressure and of the presence of 02 (e.g., see Cheng and Lee, 1986 and Wahner and Ravishankara, 1987). The reaction products are not known. 

Figure 3. Arrhenius plot for the OH + CS2 reaction in 680 20 Torr air. The solid line is obtained from Equation II. (Reproduced from Reference 4. Copyright 1988 American Chemical Society.)...

The decomposition of MTC to sulfide and subsequent oxidation to sulfate should follow the same steps as in the case of CS2 (reactions 77 to 82) and thus the overall stoichiometry can be written as ... 

Other results indicate the importance of wall reactions. First is that k depends on [O3]o. It is unusual for a rate coefficient to depend on the initial concentration of a reactant when that reactant is entirely consumed in the reaction. A similar result was found in the O3-CS2 reaction where wall reactions were also indicated (7). The importance of wall reactions was confirmed by the experiments in the packed reac-... 

A type of metathesis that does not involve redox change is illustrated by the [V(0)(0Pr-i)2(NEt2)] -f CS2 reaction, which gives [V(0)(SCSNEt2)3] and [V(0)(0Pr-O3] ". 

Chemiluminescence studies51,55 of alkali dimer (Na2,K2,Rb2,Cs2) reactions with halogen atoms (Cl, Br, 1) have discovered large cross sections, Q 10-100 A2, for formation of alkali atoms in the lowest excited state. 

C02 reaction products, the presence of 48a for COS reaction products, and the existence of 48a and 49c for CS2 reaction products. 

Summary The addition of HPMc2 to the vinyl-Tg silasesqiuoxane quantitatively yields the novel octakis(dimethylphosphinoethyl)octasilasesquioxane 1 which can be converted quantitatively into the thio-derivative 2 via mild oxidation with sulfur in CS2. Reaction with W(CO)5THF gives the octatungsten derivative 3 as an interesting example for supermolecular transition metal complexes. 

Reaction medium A AICI3-CS2 Reaction medium B AICI3-CH3NO2... 

If CCI4 is produced from CS2 (Reaction 1) with 62.5% yield and CCI2F2 is produced from CCI4 (Reaction 2) with 71.5% yield, what mass of CS2 must be chlorinated to obtain 125.0 grams of CCI2F2 from the CCI4 produced ... 

The first scientific study of metal nanoparticles is dated back to the seminal work of Michael Faraday around 1850 [14]. Faraday was the first to notice that the red colour of gold colloid was due to the minute size of the Au particles and that one could turn the preparation blue by adding salt to the solution. He was able to obtain gold colloids reducing Audi by phosphorus, following a procedure already reported by Paracelsus in 16 century about the preparation of Aurum Potabile and based on a two phase water / CS2 reaction. It is to be noted that some of Michael Faraday s preparations are still preserved today in the Faraday Museum in London [15]. 

Carbon monoxide also is formed by the reaction of ground state O atoms with OCS the CO vibrational distribution closely resembles the A + BCD prior distribution,or a 9500 K Boltzmann distribution, and = O il- The reaction channel forming SO + CO has a 5 kcal mole" activation energy, and probably corresponds to the SO + CS channel of the O + CS2 reaction. The similarity of and for the two reactions supports this contention. The CO + SO products were not observed in molecular-beam experiment with Et = 5 kcal mole S which is the magnitude of the activation energy. 

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