Mixture Of CuCl Research Articles

Intercalation reactions in CuCl2-FeCl3 system

The intercalation reactions in CuCl2-FeCl3 system were studied by gravimetric analysis, X-ray powder diffractometry and energy dispersive X-ray spectroscopy (EDS). The reactions between graphite and a mixture of CuCl2 and FeCl3, between CuCl2-GIC's and FeCl3, and also between FeCl3-GIC's and CuCl2 were examined at 300 and 550°C.At 300°C, where the de-intercalation of CuCl2 or FeCl3 from their GIC's in a sealed tube was negligibly small, it was found that FeCl3 is intercalated into vacant graphite galleries and also exchanged with CuCl2 existing in graphite interlayer spaces, while CuCl2 can be merely exchanged with FeCl3 in graphite interlayer spaces. At 550°C, however, the de-intercalation of the intercalates, the intercalation of CuCl2 or FeCl3 into the vacant graphite galleries and the exchange reaction between FeCl3 and CuCl2 proceeded simultaneously. The formation of a molten salt in the CuCl2-FeCl3 system was observed, which seemed to lower the reactivities of CuCl2 and FeCl3 to graphite. The results of the line analysis by EDS showed that CuCl2 and FeCl3 intercalated seemed to coexist in separated domains. From the present results, the following four processes seemed to affect the formation of the ternary GIC's (Fig. 2); (1) exchange reaction between intercalates and reagents, (2) intercalation of reagents into vacant graphite galleries, (3) de-intercalation reaction from the starting GIC's and (4) formation of molten salt which seemed to lower the reactivities of metal chlorides.

DTA analysis of the system CuCl2-KCl

Mixtures of CuCl2 and KCl in molar ratios of Cu to K of from 0.5 to 1.0 were heated at 473 K in an air atmosphere, and then subjected to DTA analysis in the temperature range 293–773 K. A number of endothermic processes were observed, the extents of these depending on the molar ratio of Cu to K in the mixture.

Copper(I) alkylborohydrides from alkenes using the CuCl/NaBH 4 reagent system

A 1 1 mixture of CuCl and NaBH 4 in THF reacts with alkenes to give copper(I) alkylborohydrides.

ChemInform Abstract: THE CHLOROIODINATION OF DEACTIVATED OLEFINS WITH ANTIMONY(V) CHLORIDE‐IODINE AND IODINE MONOCHLORIDE

AbstractReaktionen der Olefine (I) mit SbCIS/Iz (Molverhältnis O1e?n:SbC15:I2 l:0.5:0.5) liefern in leidlichen Ausb. Gemische der Addukte (II) und (III); aus Acry1onitril, Styrol, Cyclohexen und Vinylacetat erhält man unter ähnlichen Bedingungen Z‐Chlqr‐1‐cyan‐1‐iod‐ethan (Ausb. 10%), 1‐Chlor‐1‐phenyl‐ethan (34%), trans‐1‐Chlor‐2‐iod‐cyclohexan (94%) bzw. 1‐Acetoxy‐1‐chlor‐2‐iod‐ethan (87%) (Ausb. z.T. gaschromatographisch bestimmt).

The Chloroiodination of Deactivated Olefins with Antimony(V) Chloride–Iodine and Iodine Monochloride

Abstract By the reactions of olefins with an equimolar mixture of SbCl5 and I2 in carbon tetrachloride, various chloroiodoalkanes are obtained in fair to good yields. This method is applicable to various deactivated olefins, the reactions of which do not proceed by the reported method using a mixture of CuCl2 and I2. Iodine monochloride can aslo be used for this reaction, but in this case both the yield and the regiospecificity of the products are sometimes inferior.

{Cu 4W 2S 6}(PPh 3) 4O 2, a compound with a metal sulfur cage generated by the WOS 2−3 ligand. Preparation, crystal and molecular structure

{Cu 4W 2S 6}(PPh 3) 4O 2 has been prepared by the reaction of an aqueous solution of Cs 2WOS 3 with a mixture of CuCl 2·2H 2O in H 2O and P(C 6H 5) 3 in CH 2Cl 2. The structure was determined from single crystal X-ray diffractometer data and was refined by least-squares methods to R = 0.071 for 5869 independent data. The compound crystallizes in the triclinic space group P 1 with one molecule in the unit cell ( a = 12.432(4), b = 12.567(2), c = 13.123(4) Å, α = 93.02(2), β = 117.43(2), γ = 95.05(2)°, V = 1803.4 Å 3, d calcd = 1.75 g/cm 3). The structure can be described as a cage (with a centre of inversion), fused by two six-membered SCu 2S 2W rings. W(107.53(33)–113.52(12)°) and Cu (distorted, angles varying between 102.16(13) and 121.08(13)°) are tetrahedrally coordinated.