Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Titanium copper hydride

Titanium iron hydrides are among the materials which, at the present time, appear to have potential for practical applications as an energy-storage medium (7). The formation and properties of titanium iron hydride have been studied by Reilly and Wiswall (3), who found that the reaction proceeds in two steps as indicated by Reactions 5 and 6. Both hydrides have dissociation pressures above 1 atm at room temperature in contrast to TiH2 which is very stable. Titanium iron is representative of intermetallic compounds that consist of an element (titanium) capable of forming a stable hydride and another element (iron) that is not a hydride former or at best, forms a hydride with great difficulty. Iron presumably plays a role in destabilizing the hydrides. Titanium also forms a 1 1 compound with copper (there are other intermetallic compounds in the titanium-copper system) and this fact, coupled with the observation that copper... [Pg.310]

Figure 3. TGA, DTA, and DTG curves for titanium copper hydride. The heating rate was 25°C/min in purified helium. Sample 32.1 mg, contained in an A/203 crucible. Figure 3. TGA, DTA, and DTG curves for titanium copper hydride. The heating rate was 25°C/min in purified helium. Sample 32.1 mg, contained in an A/203 crucible.
IODINE (7553-56-2) A powerful oxidizer. Material or vapors react violently with reducing agents, combustible materials, alkali metals, acetylene, acetaldehyde, antimony, boron, bromine pentafluoride, bromine trifluoride, calcium hydride, cesium, cesium oxide, chlorine trifluoride, copper hydride, dipropylmercury, fluoride, francium, lithium, metal acetylides, metal carbides, nickel monoxide, nitryl fluoride, perchloryl perchlorate, polyacetylene, powdered metals, rubidium, phosphorus, sodium, sodium phosphinate, sulfur, sulfur trioxide, tetraamine, trioxygen difluoride. Forms heat- or shock-sensitive compounds with ammonia, silver azide, potassium, sodium, oxygen difluoride. Incompatible with aluminum-titanium alloy, barium acetylide, ethanol, formamide, halogens, mercmic oxide, mercurous chloride, oxygen, pyridine, pyrogallic acid, salicylic acid sodium hydride, sodium salicylate, sulfides, and other materials. [Pg.658]

Related Reagents. Lithium Aluminum Hydride-(2,2 -Bipy-ridyl)(l,5-cyclooctadiene)nickel Lithium Aluminum Hydride-Bis(cyclopentadienyl)nickel Lithium Aluminum Hydride-Boron Trifluoride Etherate Lithium Aluminum Hydride-Cerium(III) Chloride Lithium Aluminum Hydride-2,2 -Dihydroxy-l, E-binaphthyl Lithium Aluminum Hydride-Chromium(III) Chloride Lithium Aluminum Hydride-Cobalt(II) Chloride Lithium Aluminum Hydride-Copper(I) Iodide Lithium Aluminum Hydride-Diphosphoms Tetraiodide Lithium Aluminum Hydride-Nickel(II) Chloride Lithium Aluminum Hydride-Titanium(IV) Chloride Titanium(III) Chloride-Lithium Aluminum Hydride. [Pg.215]

Solutions of low-valence titanium chloride (titanium dichloride) are prepared in situ by reduction of solutions of titanium trichloride in tetrahydrofuran or 1,2-dimethoxyethane with lithium aluminum hydride [204, 205], with lithium or potassium [206], with magnesium [207, 208] or with a zinc-copper couple [209,210]. Such solutions effect hydrogenolysis of halogens [208], deoxygenation of epoxides [204] and reduction of aldehydes and ketones to alkenes [205,... [Pg.30]

An interesting deoxygenation of ketones takes place on treatment with low valence state titanium. Reagents prepared by treatment of titanium trichloride in tetrahydrofuran with lithium aluminum hydride [205], with potassium [206], with magnesium [207], or in dimethoxyethane with lithium [206] or zinc-copper couple [206,209] convert ketones to alkenes formed by coupling of the ketone carbon skeleton at the carbonyl carbon. Diisopropyl ketone thus gave tetraisopropylethylene (yield 37%) [206], and cyclic and aromatic ketones afforded much better yields of symmetrical or mixed coupled products [206,207,209]. The formation of the alkene may be preceded by pinacol coupling. In some cases a pinacol was actually isolated and reduced by low valence state titanium to the alkene [206] (p. 118). [Pg.109]

Silver-aluminium alloy, 0002 Silvered copper, 0003 Sodimn-antimony alloy, 4797 Sodimn germanide, 4418 Sodium-zinc alloy, 4798 Titanium-zirconimn alloys, 4921 See also LANTHANIDE-TRANSITION METAL ALLOY HYDRIDES... [Pg.33]

DIENES Bcn/.yldtlotobis(Iriphenyl-phosphine)palladium(ll). Copper(I) bromide-Dimethyl sulfide. Palladium(Il) chloride. Tetrakis(triphenyEphosphine)-palladium. Titanium IVichloride-Lithium aluminum hydride. [Pg.473]

Lithium butyldimethylzincate, 221 Lithium sec-butyldimethylzincate, 221 Organolithium reagents, 94 Organotitanium reagents, 213 Palladium(II) chloride, 234 Titanium(III) chloride-Diisobutylalu-minum hydride, 303 Tributyltin chloride, 315 Tributyl(trimethylsilyl)tin, 212 3-Trimethylsilyl-l, 2-butadiene, 305 Zinc-copper couple, 348 Intramolecular conjugate additions Alkylaluminum halides, 5 Potassium t-butoxide, 252 Tetrabutylammonium fluoride, 11 Titanium(IV) chloride, 304 Zirconium(IV) propoxide, 352 Miscellaneous reactions 2-(Phenylseleno)acrylonitrile, 244 9-(Phenylseleno)-9-borabicyclo[3.3.1]-nonane, 245 Quina alkaloids, 264 Tributyltin hydride, 316 Conjugate reduction (see Reduction reactions)... [Pg.361]

Write formulas for each of the following compounds (a) barium bromide, (b) copper(II) bromate, (c) titanium(III) fluoride, and (d) aluminum hydride. [Pg.98]

For application of reaction (17.5), suitable tritium targets have been developed in whieh T is preferably bound in the form of hydrides such as titanium hydride deposited on copper. The targets must be well cooled to suppress escape of T due to heating by the incident deuterons. Neutron shielding is achieved by a block of paraffin, in which the energy of the neutrons is reduced, and by boron as a neutron absorber. [Pg.343]

There are many examples of the stereoselective addition of nucleophiles to carbonyl groups in which chelation to the titanium center should be critical—reported examples include the stereoselective hydride reduction of a- or /3-hydroxyketones (Eq. 305) [684-686], of a-phosphino ketones [687], of a-sulfonylketones [688], and of an a,/3-unsaturated carbonyl compound in a 1,4-fashion [689]. The stereoselective addition of organometallic compounds such as Grignard [669,690], zinc [691,692], copper [693], and other reagents [11] to carbonyl and related compoimds Ijy taking advantage of titanium chelation is a well established method in the stereoselective... [Pg.780]

Iriniethoxyborohydridc. Stannous bromide. Stannous chloride. Teltamethylammonium borohydride. Thioglycolic acid. Tin. Titanium tetrachloride. Tri-/-butylaluminum. Tri-n-butyltin hydride. Triethylene glycol (see Zinc). Triethyl phosphite. Trimethylamine borane. Trimethylammonium formate. Trimethylsilane (indirect). Triphenyltin hydride. Tris-(tripbenylphosphine)chlor(X hodium. Zinc. Zinc amalgam. Zinc-Copper couple. Zinc hydrosulfide. [Pg.661]

See other pages where Titanium copper hydride is mentioned: [Pg.657]    [Pg.658]    [Pg.682]    [Pg.1307]    [Pg.273]    [Pg.273]    [Pg.197]    [Pg.8]    [Pg.455]    [Pg.542]    [Pg.542]    [Pg.509]    [Pg.83]    [Pg.197]    [Pg.135]    [Pg.470]    [Pg.312]    [Pg.316]    [Pg.97]    [Pg.2426]    [Pg.35]    [Pg.22]    [Pg.17]    [Pg.1001]    [Pg.1060]    [Pg.1157]    [Pg.587]    [Pg.457]    [Pg.239]    [Pg.631]    [Pg.404]    [Pg.515]    [Pg.507]    [Pg.507]   
See also in sourсe #XX -- [ Pg.309 ]



SEARCH



Copper hydrides

Titanium hydride

Titanium-copper

© 2024 chempedia.info