Copper perchlorate

CuClO, and copper(II) perchlorate [13770-18-8] Cu(Cl04)2, form a number of complexes with ammonia, pyridine, and organic derivatives of these compounds. The copper perchlorate is an effective bum-rate accelerator for soHd propellants (39). 

In the presence of copper perchlorate, the heterogenized catalyst was successfully used for the test Diels-Alder reaction and proved to be similarly active and enantioselective than its homogeneous counterpart. It was further-... 

It is known that the oxidation potentials of diazodiphenylmethane and Cu(I) in acetonitrile are very similar. With CuBr2 however, no radical-chain reaction takes place. Contrary to the copper perchlorates, CuBr2 and CuBr initiate identical reaction pathways involving copper carbenoids. No definite answer to this discrepancy is available 402). 

AFM image of Cu adlayer on Au(lll) in copper perchlorate solution, showing close-packed structure with a rotation to the Au(lll) substrate, (b) Schematic of the incommensurate structure of the Cu adlayer. (c) ( J3 X y/3 )/ 30° structure of the Cu adlayer on Au(lll), in copper sulfate solution, (d) Schematic diagram of that structure. The open circle represents Au atom at the topmost layer, the hatched circle represents the Cu adatom. (Reproduced from Manne et al., 1991a, with permission.)... 

Attempts to prepare this and the corresponding 5-benzyl complex gave highly explosive products. It appears that the ligand hydrolysed and that the bis(jV,5-dialkyldithiocarba-zate)copper perchlorates were obtained and it was these which exploded. 

Chromyl perchlorate, 4049 Cobalt(II) perchlorate hydrates, 4045 Copper perchlorate, 4052 Copper(II) perchlorate, 4051... 

Metal salts with other cations are synthesized in a similar manner. Among these studies, the obtaining of coordination compounds of copper(II) in methanol with N2S2 ligand environment should be mentioned. These complexes are of permanent interest due to the modeling of active centers of blue copper proteins on their basis (see Sec. 2.2.5.4) [235-237]. Such complexes were obtained, in particular, by interaction of divalent copper perchlorate and tetrafluoroborate with very exotic ligands 661 and 662 in methanol [238] ... 

Bond Lengths and Bond Angles of Copper Perchlorate Complexes... 

Figure 16. Precipitation of copperfll) from a homogeneous solution of copper perchlorate by injection of sodium hydroxide at 303 K [25].

Acetone-Pis an unstable, white powder or crystalline mass with a melting point of 90 to 93 Celsius. The solid is insoluble in water, but soluble in ether and tetrahydrofuran. It is quite unstable and is rarely used in military or commercial explosives. However it can be utilized as a primary explosive in blasting caps or detonators when desensitized with appropriate materials. To do so, it should be mixed with gum Arabic, carbon black, tri sodium phosphate, chalk, or silicon dioxide powder, and then mixed with a small amount of paraffin s or saturated oils prior to use. Acetone-P can also be slurried with 10% water and 5% hexane for use in blasting caps or detonators. Pure acetone-P should not be used by itself, as it will decay over time potentially leading to explosions. Acetone-P is rather volatile, and a small sample left out in the open will completely evaporate after several days—partly due to decomposition. Acetone-P can also be used in initiating compositions when mixed with sulfur nitride or other primary explosives, and then added to a small amount of a saturated oil. The sulfur nitride and other primary explosives can be replaced by bari urn chromate, copper perchlorate, or lead chromate. Even when acetone-P has been successfully desensitized, it should be used withi n 2 weeks of preparation. ... 

When CoCl2 is used as a co-catalyst, the CDC reactions of allylic sp3 C—H and 1,3-dicarbonyl compounds smoothly afford Trost—Tsuji-type products, which are traditionally prepared from allyl halides or acetates (Equation 11.4) [14]. Moreover, when NBS is used instead of TBHP, selective C—H cleavage of tertiary aliphatic amines is possible (Equation 11.5) [15]. For benzylic C—H bonds, direct C—C bond formation can be achieved using copper perchlorate (Equation 11.6) [16]. 

All cations were used in the form of perchlorates. Preparation and purification of copper perchlorate have been reported (10). 

Copper perchlorate and tetrafluoroborate salts have also been found to form coordination compounds with the neutral ligands L37 (n = 2 or 3), but the structures vary little due to nonparticipation of the counteranions C104 and BF4 for their weak coordinating ability 110, 111). In fact, they are 1 1 metal-ligand compounds in which... 

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